Sea weather in Viana do Castelo in Portugal All the beach weather in Viana do Castelo
All the essential weather information for enjoying the beach in Viana do Castelo 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 Viana do Castelo over the next 7 days?
Discover the best moment to go to the beach in Viana do Castelo in Portugal this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Viana do Castelo. 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 19 July 2026 | 65°F to 67°F | 8.1mph | discouraged | all the sea weather |
| Monday 20 July 2026 | 65°F to 67°F | 3.7mph | recommended | all the sea weather |
| Tuesday 21 July 2026 | 61°F to 68°F | 5.6mph | recommended | all the sea weather |
| Wednesday 22 July 2026 | 63°F to 68°F | 3.1mph | recommended | all the sea weather |
| Thursday 23 July 2026 | 63°F to 67°F | 4.4mph | recommended | all the sea weather |
| Friday 24 July 2026 | 61°F to 67°F | 9.3mph | recommended | all the sea weather |
| Saturday 25 July 2026 | 61°F to 67°F | 18.6mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Viana do Castelo
Sea weather on Sunday 19 July 2026
On Sunday 19 July 2026, the sun will rise at 06:17 and will set at 21:06 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 67°F t and a low of 65°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 13.7mph km/h (with gusts up to 23mph). Wave height will be up to 3.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | |  |  |  | | | |
| Outside temperature | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (67°F) |
| Perceived temperature | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 93% | 92% | 90% | 90% | 89% | 90% | 90% | 91% |
| Barometric pressure | 1014 hPa | 1014 hPa | 1015 hPa | 1016 hPa | 1016 hPa | 1016 hPa | 1015 hPa | 1016 hPa |
| Cloud cover | 43% | 43% | 78% | 82% | 41% | 15% | 22% | 20% |
| Heat index | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (67°F) |
| Dew point | 17°C (63°F) | 17°C (62°F) | 17°C (62°F) | 17°C (63°F) | 17°C (63°F) | 17°C (63°F) | 17°C (63°F) | 18°C (64°F) |
| Wind | ||||||||
| Speed | 17km/h (10mph) | 17km/h (11mph) | 19km/h (12mph) | 20km/h (13mph) | 22km/h (14mph) | 17km/h (10mph) | 8km/h (5mph) | 13km/h (8mph) |
| Gusts | 26km/h (16mph) | 27km/h (17mph) | 31km/h (19mph) | 31km/h (19mph) | 37km/h (23mph) | 30km/h (18mph) | 14km/h (8mph) | 21km/h (13mph) |
| Direction | 151° SSE | 139° SE | 129° SE | 150° SSE | 189° S | 209° SSW | 213° SSW | 158° SSE |
| Wind chill | 19°C (65°F) | 18°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (66°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 1.1m (3.7ft) | 0.8m (2.8ft) | 0.7m (2.4ft) | 0.7m (2.3ft) | 0.7m (2.2ft) | 0.6m (1.9ft) | 0.6m (1.9ft) | 0.6m (1.9ft) |
| Direction | 330° NNW | 327° NNW | 311° NW | 299° WNW | 295° WNW | 290° WNW | 299° WNW | 301° WNW |
| Period | 5.9 sec. | 5.4 sec. | 5.2 sec. | 5.1 sec. | 4.9 sec. | 4.9 sec. | 6.4 sec. | 6.9 sec. |
| Significant height | 0.2m (0.7ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| 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 Monday 20 July 2026
On Monday 20 July 2026, the sun will rise at 06:18 and will set at 21:05 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 67°F t and a low of 65°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 22.4mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 19°C (65°F) | 18°C (64°F) | 19°C (66°F) |
| Perceived temperature | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 19°C (65°F) | 18°C (64°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 93% | 94% | 94% | 88% | 90% | 86% | 86% | 88% |
| Barometric pressure | 1016 hPa | 1016 hPa | 1016 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 33% | 63% | 70% | 81% | 14% | 5% | 3% | 35% |
| Heat index | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 19°C (65°F) | 18°C (64°F) | 19°C (66°F) |
| Dew point | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 17°C (62°F) | 16°C (61°F) | 15°C (60°F) | 17°C (62°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 14km/h (9mph) | 18km/h (11mph) | 16km/h (10mph) | 19km/h (12mph) | 12km/h (7mph) | 3km/h (2mph) | 6km/h (4mph) |
| Gusts | 31km/h (19mph) | 23km/h (14mph) | 29km/h (18mph) | 25km/h (16mph) | 36km/h (22mph) | 24km/h (15mph) | 7km/h (4mph) | 11km/h (7mph) |
| Direction | 169° SSE | 145° SE | 137° SE | 159° SSE | 196° SSW | 208° SSW | 16° NNE | 49° NE |
| Wind chill | 19°C (66°F) | 19°C (65°F) | 18°C (65°F) | 19°C (66°F) | 19°C (65°F) | 19°C (65°F) | 18°C (64°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 0.6m (2.0ft) | 0.6m (2.1ft) | 0.6m (2.1ft) | 0.7m (2.2ft) | 0.7m (2.3ft) | 0.7m (2.2ft) | 0.6m (2.1ft) | 0.6m (1.9ft) |
| Direction | 302° WNW | 311° NW | 309° NW | 309° NW | 310° NW | 312° NW | 319° NW | 306° NW |
| Period | 6.9 sec. | 6.9 sec. | 6.8 sec. | 7.3 sec. | 7.3 sec. | 7.4 sec. | 7.4 sec. | 7.4 sec. |
| Significant height | 0.7m (2.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.5m (1.6ft) |
| 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 Tuesday 21 July 2026
On Tuesday 21 July 2026, the sun will rise at 06:19 and will set at 21:04 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 68°F t and a low of 61°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 8.1mph km/h (with gusts up to 17.4mph). Wave height will be up to 2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | |  | | | | |
| Outside temperature | 19°C (66°F) | 18°C (65°F) | 18°C (65°F) | 19°C (65°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Perceived temperature | 19°C (66°F) | 18°C (65°F) | 18°C (65°F) | 19°C (65°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 86% | 86% | 84% | 83% | 81% | 83% | 86% |
| Barometric pressure | 1017 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 13% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Heat index | 19°C (66°F) | 18°C (65°F) | 18°C (65°F) | 19°C (65°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Dew point | 17°C (62°F) | 16°C (61°F) | 16°C (60°F) | 16°C (60°F) | 14°C (58°F) | 14°C (57°F) | 14°C (57°F) | 17°C (62°F) |
| Wind | ||||||||
| Speed | 6km/h (4mph) | 7km/h (4mph) | 5km/h (3mph) | 5km/h (3mph) | 7km/h (4mph) | 7km/h (4mph) | 13km/h (8mph) | 9km/h (5mph) |
| Gusts | 11km/h (7mph) | 13km/h (8mph) | 8km/h (5mph) | 9km/h (6mph) | 14km/h (9mph) | 15km/h (9mph) | 28km/h (17mph) | 15km/h (9mph) |
| Direction | 135° SE | 106° ESE | 108° ESE | 196° SSW | 258° WSW | 311° NW | 349° N | 12° NNE |
| Wind chill | 19°C (66°F) | 18°C (65°F) | 18°C (65°F) | 19°C (65°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 0.6m (1.8ft) | 0.5m (1.8ft) | 0.5m (1.8ft) | 0.5m (1.8ft) | 0.5m (1.8ft) | 0.5m (1.7ft) | 0.5m (1.7ft) | 0.5m (1.7ft) |
| Direction | 292° WNW | 292° WNW | 290° WNW | 292° WNW | 290° WNW | 288° WNW | 286° WNW | 284° WNW |
| Period | 7.4 sec. | 7.4 sec. | 7.2 sec. | 7.0 sec. | 6.9 sec. | 10.5 sec. | 10.4 sec. | 8.5 sec. |
| Significant height | 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) | 0.5m (1.6ft) |
| 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 Wednesday 22 July 2026
On Wednesday 22 July 2026, the sun will rise at 06:20 and will set at 21:03 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 68°F t and a low of 63°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 4.4mph km/h (with gusts up to 9.3mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 17°C (63°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Perceived temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 17°C (63°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 81% | 78% | 78% | 81% | 83% | 86% | 87% |
| Barometric pressure | 1017 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1017 hPa | 1017 hPa | 1019 hPa |
| Cloud cover | 0% | 4% | 4% | 4% | 0% | 12% | 6% | 4% |
| Heat index | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 17°C (63°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Dew point | 16°C (61°F) | 15°C (59°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 16°C (61°F) | 16°C (61°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 3km/h (2mph) | 7km/h (4mph) | 7km/h (4mph) | 6km/h (4mph) | 7km/h (4mph) | 5km/h (3mph) | 4km/h (2mph) | 5km/h (3mph) |
| Gusts | 5km/h (3mph) | 12km/h (8mph) | 12km/h (8mph) | 10km/h (6mph) | 15km/h (9mph) | 9km/h (5mph) | 8km/h (5mph) | 9km/h (6mph) |
| Direction | 123° ESE | 112° ESE | 128° SE | 168° SSE | 238° WSW | 257° WSW | 342° NNW | 21° NNE |
| Wind chill | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (65°F) | 17°C (63°F) | 19°C (67°F) | 19°C (66°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 0.5m (1.7ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.5ft) | 0.5m (1.5ft) | 0.4m (1.5ft) | 0.4m (1.4ft) | 0.4m (1.4ft) |
| Direction | 283° WNW | 283° WNW | 285° WNW | 284° WNW | 283° WNW | 283° WNW | 284° WNW | 285° WNW |
| Period | 8.3 sec. | 10.1 sec. | 10.0 sec. | 9.7 sec. | 9.6 sec. | 9.6 sec. | 9.5 sec. | 9.3 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| 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 23 July 2026
On Thursday 23 July 2026, the sun will rise at 06:21 and will set at 21:02 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 67°F t and a low of 63°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 6.2mph km/h (with gusts up to 13.7mph). Wave height will be up to 1.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Perceived temperature | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 86% | 83% | 81% | 82% | 82% | 83% | 86% |
| Barometric pressure | 1018 hPa | 1018 hPa | 1018 hPa | 1019 hPa | 1020 hPa | 1019 hPa | 1019 hPa | 1020 hPa |
| Cloud cover | 2% | 4% | 3% | 0% | 0% | 0% | 0% | 0% |
| Heat index | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Dew point | 17°C (62°F) | 16°C (60°F) | 15°C (58°F) | 15°C (59°F) | 14°C (57°F) | 14°C (57°F) | 14°C (57°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 5km/h (3mph) | 8km/h (5mph) | 8km/h (5mph) | 4km/h (2mph) | 7km/h (4mph) | 8km/h (5mph) | 10km/h (6mph) | 7km/h (4mph) |
| Gusts | 9km/h (6mph) | 13km/h (8mph) | 14km/h (9mph) | 6km/h (4mph) | 15km/h (9mph) | 17km/h (11mph) | 22km/h (14mph) | 11km/h (7mph) |
| Direction | 110° ESE | 135° SE | 113° ESE | 198° SSW | 278° W | 306° NW | 339° NNW | 360° N |
| Wind chill | 19°C (66°F) | 18°C (64°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (63°F) | 17°C (62°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.4ft) | 0.4m (1.4ft) | 0.4m (1.5ft) |
| Direction | 285° WNW | 285° WNW | 285° WNW | 285° WNW | 285° WNW | 287° WNW | 288° WNW | 287° WNW |
| Period | 7.8 sec. | 7.7 sec. | 7.7 sec. | 7.7 sec. | 7.7 sec. | 8.8 sec. | 7.6 sec. | 7.9 sec. |
| Significant height | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| 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 Friday 24 July 2026
On Friday 24 July 2026, the sun will rise at 06:22 and will set at 21:01 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 67°F t and a low of 61°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 9.3mph km/h (with gusts up to 19.9mph). Wave height will be up to 1.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 19°C (67°F) |
| Perceived temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 19°C (67°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 87% | 87% | 86% | 87% | 85% | 85% | 87% |
| Barometric pressure | 1020 hPa | 1020 hPa | 1020 hPa | 1021 hPa | 1022 hPa | 1021 hPa | 1020 hPa | 1021 hPa |
| Cloud cover | 0% | 5% | 10% | 9% | 0% | 1% | 1% | 2% |
| Heat index | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 19°C (67°F) |
| Dew point | 17°C (62°F) | 16°C (60°F) | 15°C (60°F) | 16°C (60°F) | 15°C (59°F) | 14°C (58°F) | 14°C (57°F) | 17°C (63°F) |
| Wind | ||||||||
| Speed | 3km/h (2mph) | 10km/h (6mph) | 11km/h (7mph) | 9km/h (6mph) | 8km/h (5mph) | 13km/h (8mph) | 15km/h (9mph) | 15km/h (9mph) |
| Gusts | 5km/h (3mph) | 16km/h (10mph) | 18km/h (11mph) | 15km/h (9mph) | 17km/h (10mph) | 26km/h (16mph) | 32km/h (20mph) | 24km/h (15mph) |
| Direction | 89° E | 136° SE | 128° SE | 184° S | 261° W | 312° NW | 334° NNW | 343° NNW |
| Wind chill | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) | 19°C (67°F) |
| Waves | ||||||||
| Height | 0.4m (1.4ft) | 0.4m (1.3ft) | 0.4m (1.2ft) | 0.4m (1.2ft) | 0.4m (1.2ft) | 0.4m (1.3ft) | 0.4m (1.4ft) | 0.4m (1.4ft) |
| Direction | 286° WNW | 286° WNW | 286° WNW | 287° WNW | 287° WNW | 287° WNW | 290° WNW | 289° WNW |
| Period | 7.7 sec. | 6.9 sec. | 7.7 sec. | 7.6 sec. | 7.6 sec. | 7.5 sec. | 8.2 sec. | 8.0 sec. |
| Significant height | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| 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 Saturday 25 July 2026
On Saturday 25 July 2026, the sun will rise at 06:22 and will set at 21:01 on the beach(es) of Viana do Castelo. The outside temperature will be a high of 67°F t and a low of 61°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 21.1mph km/h (with gusts up to 25.5mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 18°C (64°F) | 17°C (63°F) | 19°C (66°F) |
| Perceived temperature | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 18°C (64°F) | 17°C (63°F) | 19°C (66°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 88% | 87% | 85% | 89% | 87% | 86% | 86% |
| Barometric pressure | 1021 hPa | 1020 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1019 hPa |
| Cloud cover | 8% | 12% | 15% | 4% | 0% | 6% | 4% | 0% |
| Heat index | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 18°C (64°F) | 17°C (63°F) | 19°C (66°F) |
| Dew point | 17°C (62°F) | 16°C (61°F) | 15°C (60°F) | 15°C (60°F) | 14°C (57°F) | 16°C (60°F) | 15°C (58°F) | 16°C (62°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 11km/h (7mph) | 13km/h (8mph) | 15km/h (10mph) | 23km/h (14mph) | 34km/h (21mph) | 31km/h (19mph) | 30km/h (19mph) |
| Gusts | 22km/h (14mph) | 17km/h (11mph) | 20km/h (12mph) | 24km/h (15mph) | 29km/h (18mph) | 41km/h (25mph) | 37km/h (23mph) | 36km/h (22mph) |
| Direction | 5° N | 21° NNE | 18° NNE | 348° NNW | 329° NNW | 337° NNW | 335° NNW | 344° NNW |
| Wind chill | 19°C (66°F) | 18°C (65°F) | 18°C (64°F) | 18°C (64°F) | 16°C (61°F) | 18°C (64°F) | 17°C (63°F) | 19°C (66°F) |
| Waves | ||||||||
| Height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.4ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.7ft) |
| Direction | 288° WNW | 287° WNW | 287° WNW | 286° WNW | 285° WNW | 273° W | 276° W | 282° WNW |
| Period | 4.2 sec. | 4.2 sec. | 4.4 sec. | 4.6 sec. | 4.6 sec. | 4.6 sec. | 4.6 sec. | 4.6 sec. |
| Significant height | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) |
| 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) |