Sea weather in Sao Martinho do Porto in Portugal All the beach weather in Sao Martinho do Porto
All the essential weather information for enjoying the beach in Sao Martinho do Porto in Portugal, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.
Weather: When should you go to the beach in Sao Martinho do Porto over the next 7 days?
Discover the best moment to go to the beach in Sao Martinho do Porto in Portugal this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Sao Martinho do Porto. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Friday 5 December 2025 | 58°F to 61°F | 13.1mph | discouraged | all the sea weather |
| Saturday 6 December 2025 | 59°F to 61°F | 10.6mph | discouraged | all the sea weather |
| Sunday 7 December 2025 | 58°F to 61°F | 13.1mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 56°F to 63°F | 15.5mph | discouraged | all the sea weather |
| Tuesday 9 December 2025 | 56°F to 65°F | 27.3mph | not recommended | all the sea weather |
| Wednesday 10 December 2025 | 54°F to 59°F | 8.7mph | discouraged | all the sea weather |
| Thursday 11 December 2025 | 54°F to 58°F | 11.8mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Sao Martinho do Porto
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 07:42 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 61°F t and a low of 58°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 27.3mph). Wave height will be up to 13.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | | | | |
| Outside temperature | 15°C (58°F) | 14°C (58°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) |
| Perceived temperature | 14°C (57°F) | 14°C (56°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 93% | 92% | 92% | 92% | 93% | 94% | 93% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1022 hPa |
| Cloud cover | 76% | 76% | 65% | 77% | 86% | 63% | 50% | 85% |
| Heat index | 15°C (58°F) | 14°C (58°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) |
| Dew point | 12°C (54°F) | 13°C (56°F) | 14°C (57°F) | 15°C (59°F) | 15°C (59°F) | 15°C (59°F) | 15°C (58°F) | 15°C (58°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 13km/h (8mph) | 12km/h (8mph) | 27km/h (17mph) | 26km/h (16mph) | 25km/h (16mph) | 22km/h (13mph) | 21km/h (13mph) |
| Gusts | 15km/h (9mph) | 20km/h (12mph) | 20km/h (12mph) | 44km/h (27mph) | 42km/h (26mph) | 40km/h (25mph) | 37km/h (23mph) | 34km/h (21mph) |
| Direction | 199° SSW | 170° S | 228° SW | 267° W | 256° WSW | 249° WSW | 232° SW | 230° SW |
| Wind chill | 14°C (57°F) | 14°C (56°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) |
| Waves | ||||||||
| Height | 3.6m (11.7ft) | 3.7m (12.1ft) | 3.9m (12.9ft) | 4.1m (13.5ft) | 4.1m (13.4ft) | 4.0m (13.1ft) | 3.8m (12.5ft) | 3.6m (11.7ft) |
| Direction | 316° NW | 316° NW | 316° NW | 312° NW | 311° NW | 310° NW | 306° NW | 306° NW |
| Period | 13.1 sec. | 13.3 sec. | 13.5 sec. | 14.1 sec. | 14.5 sec. | 14.9 sec. | 16.0 sec. | 15.9 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 07:43 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 61°F t and a low of 59°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 20.5mph). Wave height will be up to 15.4ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) |
| Perceived temperature | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 93% | 88% | 82% | 83% | 82% | 81% | 80% | 77% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1022 hPa | 1023 hPa | 1023 hPa | 1023 hPa | 1023 hPa | 1024 hPa |
| Cloud cover | 82% | 74% | 85% | 72% | 76% | 94% | 91% | 93% |
| Heat index | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) |
| Dew point | 15°C (58°F) | 14°C (57°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 20km/h (12mph) | 20km/h (12mph) | 19km/h (12mph) | 21km/h (13mph) | 19km/h (12mph) | 19km/h (12mph) | 17km/h (11mph) |
| Gusts | 33km/h (20mph) | 32km/h (20mph) | 33km/h (20mph) | 30km/h (19mph) | 32km/h (20mph) | 30km/h (18mph) | 32km/h (20mph) | 29km/h (18mph) |
| Direction | 230° SW | 226° SW | 230° SW | 213° SSW | 211° SSW | 210° SSW | 215° SW | 208° SSW |
| Wind chill | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) |
| Waves | ||||||||
| Height | 3.4m (11.1ft) | 3.4m (11.3ft) | 3.7m (12.2ft) | 4.1m (13.5ft) | 4.6m (15.1ft) | 4.7m (15.6ft) | 4.6m (15.0ft) | 4.3m (14.1ft) |
| Direction | 307° NW | 308° NW | 310° NW | 308° NW | 303° WNW | 302° WNW | 299° WNW | 297° WNW |
| Period | 15.8 sec. | 15.4 sec. | 14.2 sec. | 14.6 sec. | 15.5 sec. | 16.0 sec. | 15.9 sec. | 15.7 sec. |
| Significant height | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 07:44 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 61°F t and a low of 58°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 24.9mph). Wave height will be up to 13.1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 16°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 14°C (57°F) | 14°C (57°F) |
| Perceived temperature | 16°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 12°C (54°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 79% | 77% | 73% | 74% | 85% | 89% | 91% |
| Barometric pressure | 1024 hPa | 1023 hPa | 1022 hPa | 1023 hPa | 1023 hPa | 1022 hPa | 1022 hPa | 1022 hPa |
| Cloud cover | 96% | 85% | 97% | 92% | 85% | 87% | 9% | 10% |
| Heat index | 16°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 14°C (57°F) | 14°C (57°F) |
| Dew point | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 13°C (56°F) | 12°C (54°F) | 13°C (55°F) |
| Wind | ||||||||
| Speed | 15km/h (10mph) | 17km/h (11mph) | 16km/h (10mph) | 14km/h (9mph) | 23km/h (15mph) | 24km/h (15mph) | 19km/h (12mph) | 21km/h (13mph) |
| Gusts | 25km/h (15mph) | 29km/h (18mph) | 27km/h (17mph) | 25km/h (16mph) | 38km/h (24mph) | 40km/h (25mph) | 37km/h (23mph) | 36km/h (22mph) |
| Direction | 197° SSW | 169° S | 181° S | 158° SSE | 169° SSE | 209° SSW | 191° SSW | 159° SSE |
| Wind chill | 16°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 12°C (54°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 4.0m (13.2ft) | 3.7m (12.3ft) | 3.5m (11.4ft) | 3.3m (10.8ft) | 3.0m (9.9ft) | 3.0m (9.7ft) | 3.0m (9.9ft) | 3.0m (9.8ft) |
| Direction | 296° WNW | 299° WNW | 298° WNW | 298° WNW | 302° WNW | 301° WNW | 300° WNW | 297° WNW |
| Period | 15.5 sec. | 14.8 sec. | 14.5 sec. | 14.4 sec. | 13.9 sec. | 13.3 sec. | 13.2 sec. | 12.9 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 07:45 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 63°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 18.6mph km/h (with gusts up to 29.2mph). Wave height will be up to 13.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 14°C (57°F) | 13°C (56°F) | 13°C (55°F) | 13°C (55°F) | 15°C (59°F) | 17°C (62°F) | 15°C (58°F) | 14°C (58°F) |
| Perceived temperature | 12°C (54°F) | 11°C (52°F) | 11°C (51°F) | 10°C (51°F) | 15°C (59°F) | 17°C (62°F) | 13°C (55°F) | 13°C (55°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 91% | 90% | 89% | 89% | 80% | 77% | 85% | 90% |
| Barometric pressure | 1022 hPa | 1021 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1019 hPa | 1020 hPa | 1020 hPa |
| Cloud cover | 74% | 42% | 75% | 88% | 34% | 35% | 14% | 24% |
| Heat index | 14°C (57°F) | 13°C (56°F) | 13°C (55°F) | 13°C (55°F) | 15°C (59°F) | 17°C (62°F) | 15°C (58°F) | 14°C (58°F) |
| Dew point | 12°C (54°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 12°C (53°F) | 13°C (55°F) | 12°C (54°F) | 13°C (55°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 24km/h (15mph) | 27km/h (17mph) | 30km/h (18mph) | 30km/h (18mph) | 24km/h (15mph) | 23km/h (14mph) | 25km/h (16mph) |
| Gusts | 36km/h (22mph) | 42km/h (26mph) | 31km/h (19mph) | 47km/h (29mph) | 44km/h (27mph) | 41km/h (25mph) | 27km/h (17mph) | 41km/h (26mph) |
| Direction | 152° SSE | 143° SE | 145° SE | 142° SE | 154° SSE | 178° S | 159° SSE | 155° SSE |
| Wind chill | 12°C (54°F) | 11°C (52°F) | 11°C (51°F) | 10°C (51°F) | 15°C (59°F) | 17°C (62°F) | 13°C (55°F) | 13°C (55°F) |
| Waves | ||||||||
| Height | 3.0m (9.7ft) | 2.9m (9.5ft) | 2.8m (9.2ft) | 2.7m (8.9ft) | 2.9m (9.5ft) | 3.4m (11.0ft) | 3.8m (12.4ft) | 4.1m (13.5ft) |
| Direction | 293° WNW | 293° WNW | 292° WNW | 289° WNW | 287° WNW | 291° WNW | 290° WNW | 290° WNW |
| Period | 12.8 sec. | 12.3 sec. | 12.1 sec. | 11.9 sec. | 11.6 sec. | 11.7 sec. | 18.9 sec. | 17.9 sec. |
| Significant height | 0.5m (1.6ft) | 0.3m (1ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.2m (3.9ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 07:45 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 65°F t and a low of 56°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 27.3mph km/h (with gusts up to 32.9mph). Wave height will be up to 14.1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | |  |
| Outside temperature | 14°C (58°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) | 16°C (61°F) | 18°C (64°F) | 16°C (62°F) | 16°C (62°F) |
| Perceived temperature | 12°C (54°F) | 11°C (53°F) | 10°C (50°F) | 10°C (51°F) | 16°C (61°F) | 18°C (64°F) | 16°C (62°F) | 16°C (62°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 89% | 87% | 87% | 84% | 73% | 64% | 73% | 85% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1017 hPa | 1017 hPa | 1016 hPa | 1014 hPa | 1013 hPa | 1012 hPa |
| Cloud cover | 14% | 7% | 7% | 13% | 25% | 45% | 64% | 100% |
| Heat index | 14°C (58°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) | 16°C (61°F) | 18°C (64°F) | 16°C (62°F) | 16°C (62°F) |
| Dew point | 13°C (55°F) | 12°C (53°F) | 11°C (51°F) | 11°C (51°F) | 11°C (53°F) | 11°C (52°F) | 11°C (53°F) | 14°C (57°F) |
| Wind | ||||||||
| Speed | 29km/h (18mph) | 30km/h (19mph) | 33km/h (21mph) | 35km/h (22mph) | 37km/h (23mph) | 40km/h (25mph) | 42km/h (26mph) | 44km/h (28mph) |
| Gusts | 46km/h (29mph) | 31km/h (19mph) | 34km/h (21mph) | 53km/h (33mph) | 39km/h (24mph) | 41km/h (26mph) | 48km/h (30mph) | 46km/h (29mph) |
| Direction | 156° SSE | 151° SSE | 145° SE | 151° SSE | 161° SSE | 175° S | 175° S | 179° S |
| Wind chill | 12°C (54°F) | 11°C (53°F) | 10°C (50°F) | 10°C (51°F) | 16°C (61°F) | 18°C (64°F) | 16°C (62°F) | 16°C (62°F) |
| Waves | ||||||||
| Height | 4.3m (14.0ft) | 4.2m (13.9ft) | 4.1m (13.5ft) | 3.9m (12.9ft) | 3.8m (12.4ft) | 3.7m (12.0ft) | 3.7m (12.1ft) | 3.7m (12.2ft) |
| Direction | 290° WNW | 290° WNW | 290° WNW | 291° WNW | 291° WNW | 292° WNW | 292° WNW | 292° WNW |
| Period | 17.6 sec. | 17.5 sec. | 17.3 sec. | 17.1 sec. | 16.5 sec. | 16.0 sec. | 15.7 sec. | 15.6 sec. |
| Significant height | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 07:46 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 59°F t and a low of 54°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 23.6mph km/h (with gusts up to 32.3mph). Wave height will be up to 14.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | |  |
| Outside temperature | 14°C (58°F) | 15°C (59°F) | 15°C (58°F) | 15°C (58°F) | 15°C (58°F) | 14°C (58°F) | 12°C (53°F) | 13°C (56°F) |
| Perceived temperature | 12°C (53°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 9°C (49°F) | 12°C (54°F) |
| Precipitation | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 90% | 82% | 80% | 77% | 73% | 69% | 71% | 72% |
| Barometric pressure | 1014 hPa | 1016 hPa | 1017 hPa | 1019 hPa | 1020 hPa | 1020 hPa | 1021 hPa | 1021 hPa |
| Cloud cover | 100% | 82% | 53% | 64% | 69% | 36% | 3% | 0% |
| Heat index | 14°C (58°F) | 15°C (59°F) | 15°C (58°F) | 15°C (58°F) | 15°C (58°F) | 14°C (58°F) | 12°C (53°F) | 13°C (56°F) |
| Dew point | 13°C (55°F) | 12°C (53°F) | 11°C (52°F) | 11°C (51°F) | 10°C (50°F) | 9°C (48°F) | 6°C (44°F) | 9°C (47°F) |
| Wind | ||||||||
| Speed | 38km/h (23mph) | 27km/h (17mph) | 28km/h (17mph) | 24km/h (15mph) | 23km/h (14mph) | 21km/h (13mph) | 18km/h (11mph) | 14km/h (9mph) |
| Gusts | 52km/h (32mph) | 38km/h (24mph) | 39km/h (25mph) | 33km/h (21mph) | 33km/h (21mph) | 32km/h (20mph) | 22km/h (13mph) | 22km/h (14mph) |
| Direction | 330° NNW | 342° NNW | 355° N | 5° N | 4° N | 2° N | 13° NNE | 39° NE |
| Wind chill | 12°C (53°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 9°C (49°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 4.4m (14.4ft) | 4.5m (14.9ft) | 4.4m (14.5ft) | 4.2m (13.7ft) | 3.9m (12.8ft) | 3.7m (12.0ft) | 3.5m (11.4ft) | 3.3m (10.8ft) |
| Direction | 289° WNW | 287° WNW | 287° WNW | 289° WNW | 293° WNW | 292° WNW | 295° WNW | 294° WNW |
| Period | 15.5 sec. | 15.2 sec. | 14.9 sec. | 14.5 sec. | 14.0 sec. | 13.2 sec. | 13.0 sec. | 12.4 sec. |
| Significant height | 1.2m (3.9ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.1m (0.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) |
Sea weather on Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 07:47 and will set at 17:12 on the beach(es) of Sao Martinho do Porto. The outside temperature will be a high of 58°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 18.6mph). Wave height will be up to 10.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 13°C (55°F) | 14°C (56°F) | 14°C (57°F) | 14°C (56°F) |
| Perceived temperature | 12°C (54°F) | 11°C (52°F) | 10°C (51°F) | 10°C (51°F) | 11°C (52°F) | 12°C (54°F) | 13°C (55°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 85% | 89% | 87% | 85% | 84% | 83% | 83% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1019 hPa | 1019 hPa | 1019 hPa | 1017 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 3% | 22% | 61% | 100% | 100% | 88% | 63% | 60% |
| Heat index | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 13°C (55°F) | 14°C (56°F) | 14°C (57°F) | 14°C (56°F) |
| Dew point | 9°C (48°F) | 10°C (49°F) | 10°C (50°F) | 10°C (50°F) | 10°C (51°F) | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) |
| Wind | ||||||||
| Speed | 6km/h (4mph) | 10km/h (6mph) | 12km/h (8mph) | 18km/h (11mph) | 19km/h (12mph) | 16km/h (10mph) | 15km/h (9mph) | 19km/h (12mph) |
| Gusts | 9km/h (6mph) | 15km/h (9mph) | 19km/h (12mph) | 27km/h (17mph) | 26km/h (16mph) | 23km/h (14mph) | 24km/h (15mph) | 30km/h (18mph) |
| Direction | 121° ESE | 153° SSE | 135° SE | 140° SE | 164° SSE | 166° SSE | 179° S | 173° S |
| Wind chill | 12°C (54°F) | 11°C (52°F) | 10°C (51°F) | 10°C (51°F) | 11°C (52°F) | 12°C (54°F) | 13°C (55°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 3.1m (10.1ft) | 2.9m (9.5ft) | 2.7m (8.9ft) | 2.5m (8.3ft) | 2.4m (7.8ft) | 2.4m (8.0ft) | 2.5m (8.3ft) | 2.7m (8.8ft) |
| Direction | 295° WNW | 294° WNW | 294° WNW | 294° WNW | 296° WNW | 297° WNW | 295° WNW | 293° WNW |
| Period | 12.2 sec. | 12.0 sec. | 11.9 sec. | 11.9 sec. | 11.9 sec. | 12.0 sec. | 11.8 sec. | 11.6 sec. |
| Significant height | 0.2m (0.7ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.0m (3.3ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) | 16°C (61°F) |