Sea weather in Seixal in Madeira All the beach weather in Seixal
All the essential weather information for enjoying the beach in Seixal in Madeira, 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 Seixal over the next 7 days?
Discover the best moment to go to the beach in Seixal in Madeira this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Seixal. 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 |
|---|---|---|---|---|
| Sunday 14 December 2025 | 59°F to 61°F | 9.3mph | discouraged | all the sea weather |
| Monday 15 December 2025 | 58°F to 63°F | 18mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 58°F to 59°F | 11.2mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 59°F to 61°F | 8.1mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 59°F to 61°F | 8.7mph | recommended | all the sea weather |
| Friday 19 December 2025 | 50°F to 61°F | 11.8mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 56°F to 58°F | 9.3mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Seixal
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 08:03 and will set at 18:04 on the beach(es) of Seixal. The outside temperature will be a high of 61°F t and a low of 59°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 18mph km/h (with gusts up to 28mph). 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 | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 15°C (58°F) | 15°C (59°F) |
| Perceived temperature | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 13°C (56°F) | 15°C (59°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 78% | 79% | 78% | 74% | 73% | 78% | 78% |
| Barometric pressure | 1018 hPa | 1018 hPa | 1018 hPa | 1019 hPa | 1020 hPa | 1018 hPa | 1019 hPa | 1021 hPa |
| Cloud cover | 94% | 95% | 91% | 85% | 87% | 72% | 79% | 71% |
| Heat index | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 15°C (58°F) | 15°C (59°F) |
| Dew point | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
| Wind | ||||||||
| Speed | 29km/h (18mph) | 26km/h (16mph) | 25km/h (16mph) | 22km/h (13mph) | 18km/h (11mph) | 18km/h (11mph) | 19km/h (12mph) | 15km/h (9mph) |
| Gusts | 45km/h (28mph) | 37km/h (23mph) | 37km/h (23mph) | 30km/h (19mph) | 28km/h (18mph) | 26km/h (16mph) | 32km/h (20mph) | 22km/h (14mph) |
| Direction | 33° NNE | 33° NNE | 30° NNE | 35° NE | 44° NE | 33° NNE | 36° NE | 34° NE |
| Wind chill | 15°C (59°F) | 15°C (60°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (61°F) | 13°C (56°F) | 15°C (59°F) |
| Waves | ||||||||
| Height | 4.5m (14.9ft) | 4.0m (13.3ft) | 3.7m (12.1ft) | 3.3m (10.8ft) | 3.0m (10.0ft) | 2.8m (9.1ft) | 2.6m (8.6ft) | 2.5m (8.1ft) |
| Direction | 1° N | 328° NNW | 328° NNW | 330° NNW | 329° NNW | 328° NNW | 327° NNW | 325° NW |
| Period | 14.5 sec. | 14.3 sec. | 14.1 sec. | 13.6 sec. | 13.2 sec. | 13.1 sec. | 13.1 sec. | 13.2 sec. |
| Significant height | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 08:04 and will set at 18:04 on the beach(es) of Seixal. The outside temperature will be a high of 63°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 18.6mph km/h (with gusts up to 28mph). Wave height will be up to 9.8ft 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) | 15°C (59°F) | 15°C (59°F) | 15°C (59°F) | 17°C (62°F) | 17°C (62°F) | 15°C (58°F) | 15°C (58°F) |
| Perceived temperature | 14°C (57°F) | 14°C (58°F) | 14°C (57°F) | 14°C (57°F) | 17°C (62°F) | 17°C (62°F) | 13°C (55°F) | 13°C (55°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 80% | 79% | 75% | 83% | 84% | 76% | 71% |
| Barometric pressure | 1020 hPa | 1020 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1020 hPa | 1022 hPa | 1024 hPa |
| Cloud cover | 85% | 82% | 40% | 24% | 89% | 80% | 70% | 6% |
| Heat index | 15°C (58°F) | 15°C (59°F) | 15°C (59°F) | 15°C (59°F) | 17°C (62°F) | 17°C (62°F) | 15°C (58°F) | 15°C (58°F) |
| Dew point | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 10°C (51°F) | 14°C (57°F) | 14°C (57°F) | 10°C (51°F) | 9°C (49°F) |
| Wind | ||||||||
| Speed | 13km/h (8mph) | 11km/h (7mph) | 15km/h (9mph) | 14km/h (9mph) | 21km/h (13mph) | 30km/h (18mph) | 28km/h (17mph) | 29km/h (18mph) |
| Gusts | 19km/h (12mph) | 16km/h (10mph) | 22km/h (14mph) | 20km/h (13mph) | 29km/h (18mph) | 43km/h (27mph) | 45km/h (28mph) | 43km/h (27mph) |
| Direction | 44° NE | 7° N | 334° NNW | 311° NW | 296° WNW | 350° N | 350° N | 352° N |
| Wind chill | 14°C (57°F) | 14°C (58°F) | 14°C (57°F) | 14°C (57°F) | 17°C (62°F) | 17°C (62°F) | 13°C (55°F) | 13°C (55°F) |
| Waves | ||||||||
| Height | 2.3m (7.5ft) | 2.1m (7.1ft) | 2.0m (6.7ft) | 2.0m (6.4ft) | 1.9m (6.4ft) | 2.3m (7.6ft) | 2.6m (8.5ft) | 3.0m (10.0ft) |
| Direction | 321° NW | 323° NW | 317° NW | 313° NW | 310° NW | 305° NW | 300° WNW | 296° WNW |
| Period | 13.1 sec. | 12.0 sec. | 13.9 sec. | 14.2 sec. | 14.1 sec. | 14.0 sec. | 13.4 sec. | 13.1 sec. |
| Significant height | 0.5m (1.6ft) | 1.3m (4.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.5m (4.9ft) | 1.3m (4.3ft) | 1.6m (5.2ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 08:05 and will set at 18:05 on the beach(es) of Seixal. The outside temperature will be a high of 59°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 18.6mph km/h (with gusts up to 26.7mph). 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 (58°F) | 14°C (57°F) | 14°C (58°F) | 14°C (57°F) | 15°C (58°F) | 15°C (59°F) | 15°C (58°F) | 15°C (59°F) |
| Perceived temperature | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (56°F) | 13°C (55°F) | 14°C (57°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 69% | 73% | 68% | 71% | 70% | 72% | 78% | 80% |
| Barometric pressure | 1025 hPa | 1025 hPa | 1025 hPa | 1027 hPa | 1028 hPa | 1027 hPa | 1027 hPa | 1028 hPa |
| Cloud cover | 17% | 8% | 11% | 76% | 65% | 60% | 66% | 65% |
| Heat index | 14°C (58°F) | 14°C (57°F) | 14°C (58°F) | 14°C (57°F) | 15°C (58°F) | 15°C (59°F) | 15°C (58°F) | 15°C (59°F) |
| Dew point | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (48°F) | 9°C (49°F) | 10°C (50°F) | 11°C (52°F) | 12°C (53°F) |
| Wind | ||||||||
| Speed | 30km/h (19mph) | 28km/h (17mph) | 29km/h (18mph) | 27km/h (17mph) | 25km/h (15mph) | 22km/h (13mph) | 23km/h (14mph) | 18km/h (11mph) |
| Gusts | 43km/h (27mph) | 38km/h (24mph) | 40km/h (25mph) | 38km/h (24mph) | 34km/h (21mph) | 31km/h (19mph) | 35km/h (21mph) | 26km/h (16mph) |
| Direction | 1° N | 5° N | 6° N | 11° NNE | 14° NNE | 10° N | 10° N | 21° NNE |
| Wind chill | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (56°F) | 13°C (55°F) | 14°C (57°F) |
| Waves | ||||||||
| Height | 3.5m (11.4ft) | 3.8m (12.4ft) | 4.0m (13.1ft) | 4.1m (13.3ft) | 4.0m (13.3ft) | 3.9m (12.9ft) | 3.9m (12.7ft) | 3.8m (12.4ft) |
| Direction | 326° NW | 329° NNW | 329° NNW | 329° NNW | 316° NW | 316° NW | 316° NW | 313° NW |
| Period | 13.0 sec. | 16.1 sec. | 12.1 sec. | 15.1 sec. | 12.2 sec. | 14.1 sec. | 13.2 sec. | 13.3 sec. |
| Significant height | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 08:05 and will set at 18:05 on the beach(es) of Seixal. 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 18mph). Wave height will be up to 12.1ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 15°C (60°F) | 15°C (59°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 15°C (59°F) | 16°C (60°F) |
| Perceived temperature | 15°C (60°F) | 14°C (56°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 15°C (59°F) | 16°C (60°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 82% | 80% | 78% | 72% | 75% | 78% | 77% |
| Barometric pressure | 1028 hPa | 1027 hPa | 1026 hPa | 1027 hPa | 1027 hPa | 1025 hPa | 1025 hPa | 1027 hPa |
| Cloud cover | 59% | 52% | 83% | 81% | 87% | 88% | 82% | 17% |
| Heat index | 15°C (60°F) | 15°C (59°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 15°C (59°F) | 16°C (60°F) |
| Dew point | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 12°C (53°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 21km/h (13mph) | 21km/h (13mph) | 19km/h (12mph) | 17km/h (10mph) | 15km/h (9mph) | 14km/h (9mph) | 13km/h (8mph) |
| Gusts | 27km/h (17mph) | 29km/h (18mph) | 29km/h (18mph) | 27km/h (17mph) | 24km/h (15mph) | 21km/h (13mph) | 22km/h (14mph) | 18km/h (11mph) |
| Direction | 24° NNE | 13° NNE | 23° NNE | 24° NNE | 29° NNE | 34° NNE | 34° NNE | 29° NNE |
| Wind chill | 15°C (60°F) | 14°C (56°F) | 15°C (60°F) | 16°C (60°F) | 16°C (61°F) | 16°C (61°F) | 15°C (59°F) | 16°C (60°F) |
| Waves | ||||||||
| Height | 3.7m (12.1ft) | 3.5m (11.6ft) | 3.4m (11.1ft) | 3.2m (10.5ft) | 3.0m (9.9ft) | 2.9m (9.5ft) | 2.7m (9.0ft) | 2.6m (8.6ft) |
| Direction | 313° NW | 313° NW | 313° NW | 314° NW | 317° NW | 323° NW | 323° NW | 323° NW |
| Period | 13.3 sec. | 13.1 sec. | 13.4 sec. | 13.0 sec. | 12.9 sec. | 12.5 sec. | 12.3 sec. | 12.4 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.8m (2.6ft) | 1.5m (4.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 08:06 and will set at 18:06 on the beach(es) of Seixal. 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 9.9mph km/h (with gusts up to 14.3mph). Wave height will be up to 10.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 15°C (59°F) | 15°C (58°F) | 15°C (59°F) | 15°C (59°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) |
| Perceived temperature | 14°C (58°F) | 14°C (57°F) | 14°C (57°F) | 14°C (58°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 81% | 78% | 75% | 74% | 74% | 81% | 92% |
| Barometric pressure | 1026 hPa | 1025 hPa | 1024 hPa | 1024 hPa | 1024 hPa | 1022 hPa | 1022 hPa | 1023 hPa |
| Cloud cover | 14% | 74% | 60% | 19% | 80% | 71% | 77% | 84% |
| Heat index | 15°C (59°F) | 15°C (58°F) | 15°C (59°F) | 15°C (59°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) |
| Dew point | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 12°C (54°F) | 14°C (58°F) |
| Wind | ||||||||
| Speed | 12km/h (7mph) | 14km/h (9mph) | 15km/h (9mph) | 11km/h (7mph) | 16km/h (10mph) | 13km/h (8mph) | 15km/h (9mph) | 14km/h (9mph) |
| Gusts | 17km/h (11mph) | 22km/h (14mph) | 21km/h (13mph) | 15km/h (10mph) | 22km/h (13mph) | 19km/h (12mph) | 23km/h (14mph) | 21km/h (13mph) |
| Direction | 21° NNE | 5° N | 346° NNW | 341° NNW | 317° NW | 298° WNW | 306° NW | 312° NW |
| Wind chill | 14°C (58°F) | 14°C (57°F) | 14°C (57°F) | 14°C (58°F) | 15°C (60°F) | 16°C (60°F) | 16°C (60°F) | 16°C (60°F) |
| Waves | ||||||||
| Height | 2.5m (8.3ft) | 2.5m (8.1ft) | 2.5m (8.1ft) | 2.6m (8.5ft) | 2.8m (9.1ft) | 3.0m (9.8ft) | 3.1m (10.2ft) | 3.2m (10.6ft) |
| Direction | 321° NW | 319° NW | 319° NW | 309° NW | 312° NW | 306° NW | 320° NW | 321° NW |
| Period | 13.0 sec. | 13.0 sec. | 12.4 sec. | 12.0 sec. | 18.1 sec. | 20.5 sec. | 15.2 sec. | 14.7 sec. |
| Significant height | 1.4m (4.6ft) | 1.3m (4.3ft) | 0.4m (1.3ft) | 1.4m (4.6ft) | 0.7m (2.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 08:06 and will set at 18:06 on the beach(es) of Seixal. The outside temperature will be a high of 61°F t and a low of 50°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 21.8mph). Wave height will be up to 16.1ft 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) | 16°C (60°F) | 15°C (59°F) | 14°C (58°F) | 13°C (55°F) | 14°C (56°F) | 10°C (51°F) | 13°C (56°F) |
| Perceived temperature | 16°C (60°F) | 16°C (60°F) | 15°C (59°F) | 13°C (55°F) | 11°C (51°F) | 12°C (54°F) | 8°C (46°F) | 11°C (53°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 84% | 83% | 76% | 69% | 65% | 71% | 75% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1021 hPa | 1023 hPa | 1024 hPa | 1023 hPa | 1024 hPa | 1026 hPa |
| Cloud cover | 76% | 62% | 58% | 74% | 79% | 77% | 71% | 73% |
| Heat index | 16°C (60°F) | 16°C (60°F) | 15°C (59°F) | 14°C (58°F) | 13°C (55°F) | 14°C (56°F) | 10°C (51°F) | 13°C (56°F) |
| Dew point | 14°C (57°F) | 13°C (56°F) | 12°C (54°F) | 10°C (51°F) | 7°C (45°F) | 7°C (45°F) | 5°C (42°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 22km/h (13mph) | 24km/h (15mph) | 26km/h (16mph) | 27km/h (17mph) | 23km/h (15mph) | 18km/h (11mph) | 19km/h (12mph) | 19km/h (12mph) |
| Gusts | 32km/h (20mph) | 34km/h (21mph) | 35km/h (22mph) | 35km/h (22mph) | 27km/h (17mph) | 31km/h (19mph) | 20km/h (12mph) | 30km/h (19mph) |
| Direction | 338° NNW | 16° NNE | 24° NNE | 29° NNE | 39° NE | 39° NE | 45° NE | 49° NE |
| Wind chill | 16°C (60°F) | 16°C (60°F) | 15°C (59°F) | 13°C (55°F) | 11°C (51°F) | 12°C (54°F) | 8°C (46°F) | 11°C (53°F) |
| Waves | ||||||||
| Height | 3.4m (11.0ft) | 3.6m (11.7ft) | 4.0m (13.2ft) | 4.8m (15.6ft) | 4.9m (16.1ft) | 4.8m (15.6ft) | 4.5m (14.9ft) | 4.3m (14.2ft) |
| Direction | 318° NW | 324° NW | 329° NNW | 326° NW | 329° NNW | 325° NW | 327° NNW | 329° NNW |
| Period | 14.3 sec. | 14.3 sec. | 18.9 sec. | 17.7 sec. | 17.2 sec. | 16.1 sec. | 15.9 sec. | 15.6 sec. |
| Significant height | 0.9m (3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 08:07 and will set at 18:06 on the beach(es) of Seixal. The outside temperature will be a high of 58°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 11.8mph km/h (with gusts up to 16.2mph). 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 | 13°C (56°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) | 14°C (57°F) | 14°C (57°F) | 13°C (56°F) | 13°C (55°F) |
| Perceived temperature | 12°C (54°F) | 13°C (55°F) | 11°C (53°F) | 12°C (53°F) | 13°C (55°F) | 13°C (55°F) | 12°C (53°F) | 12°C (53°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 75% | 70% | 72% | 74% | 68% | 62% | 68% | 71% |
| Barometric pressure | 1026 hPa | 1025 hPa | 1025 hPa | 1027 hPa | 1026 hPa | 1024 hPa | 1025 hPa | 1025 hPa |
| Cloud cover | 77% | 9% | 72% | 58% | 77% | 16% | 63% | 97% |
| Heat index | 13°C (56°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) | 14°C (57°F) | 14°C (57°F) | 13°C (56°F) | 13°C (55°F) |
| Dew point | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 14km/h (9mph) | 17km/h (10mph) | 19km/h (12mph) | 17km/h (11mph) | 15km/h (10mph) | 16km/h (10mph) | 15km/h (9mph) |
| Gusts | 22km/h (14mph) | 20km/h (12mph) | 25km/h (16mph) | 26km/h (16mph) | 23km/h (14mph) | 22km/h (14mph) | 24km/h (15mph) | 23km/h (14mph) |
| Direction | 46° NE | 37° NE | 42° NE | 33° NNE | 39° NE | 35° NE | 30° NNE | 38° NE |
| Wind chill | 12°C (54°F) | 13°C (55°F) | 11°C (53°F) | 12°C (53°F) | 13°C (55°F) | 13°C (55°F) | 12°C (53°F) | 12°C (53°F) |
| Waves | ||||||||
| Height | 4.1m (13.5ft) | 3.9m (13.0ft) | 3.8m (12.3ft) | 3.6m (11.9ft) | 3.4m (11.3ft) | 3.2m (10.6ft) | 3.0m (9.9ft) | 2.8m (9.3ft) |
| Direction | 325° NW | 325° NW | 324° NW | 326° NW | 327° NNW | 328° NNW | 329° NNW | 326° NW |
| Period | 14.9 sec. | 14.7 sec. | 14.3 sec. | 14.0 sec. | 13.9 sec. | 14.1 sec. | 14.0 sec. | 13.7 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) | 21°C (69°F) |