Sea weather in Portland in the United States (USA) All the beach weather in Portland
All the essential weather information for enjoying the beach in Portland in the United States (USA), 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 Portland over the next 7 days?
Discover the best moment to go to the beach in Portland in the United States (USA) this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Portland. 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 |
|---|---|---|---|---|
| Thursday 4 December 2025 | 49°F to 52°F | 9.9mph | discouraged | all the sea weather |
| Friday 5 December 2025 | 52°F to 54°F | 14.3mph | discouraged | all the sea weather |
| Saturday 6 December 2025 | 50°F to 52°F | 12.4mph | discouraged | all the sea weather |
| Sunday 7 December 2025 | 50°F to 54°F | 8.1mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 52°F to 54°F | 22.4mph | not recommended | all the sea weather |
| Tuesday 9 December 2025 | 47°F to 52°F | 11.8mph | discouraged | all the sea weather |
| Wednesday 10 December 2025 | 49°F to 54°F | 5.6mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Portland
Sea weather on Thursday 4 December 2025
On Thursday 4 December 2025, the sun will rise at 07:35 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 52°F t and a low of 49°F. Precipitation is in the forecast (0.2in 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 14.9mph km/h (with gusts up to 23mph). Wave height will be up to 4.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  | | | | |
| Outside temperature | 9°C (48°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 10°C (50°F) | 11°C (52°F) |
| Perceived temperature | 9°C (48°F) | 8°C (47°F) | 7°C (44°F) | 7°C (45°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 9°C (48°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 83% | 85% | 91% | 85% | 87% | 92% | 95% | 98% |
| Barometric pressure | 1026 hPa | 1026 hPa | 1026 hPa | 1025 hPa | 1025 hPa | 1023 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 9°C (48°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 10°C (50°F) | 11°C (52°F) |
| Dew point | 6°C (43°F) | 6°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 9°C (48°F) | 11°C (51°F) |
| Wind | ||||||||
| Speed | 4km/h (3mph) | 5km/h (3mph) | 10km/h (6mph) | 16km/h (10mph) | 22km/h (14mph) | 23km/h (15mph) | 24km/h (15mph) | 16km/h (10mph) |
| Gusts | 7km/h (4mph) | 7km/h (5mph) | 15km/h (9mph) | 23km/h (14mph) | 32km/h (20mph) | 35km/h (22mph) | 37km/h (23mph) | 26km/h (16mph) |
| Direction | 96° E | 171° S | 171° S | 164° SSE | 174° S | 163° SSE | 172° S | 203° SSW |
| Wind chill | 9°C (48°F) | 8°C (47°F) | 7°C (44°F) | 7°C (45°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 9°C (48°F) |
| Waves | ||||||||
| Height | 1.3m (4.2ft) | 1.2m (4.0ft) | 1.2m (4.0ft) | 1.2m (4.1ft) | 1.3m (4.3ft) | 1.4m (4.7ft) | 1.5m (4.8ft) | 1.4m (4.7ft) |
| Direction | 276° W | 277° W | 278° W | 277° W | 273° W | 275° W | 272° W | 272° W |
| Period | 12.5 sec. | 12.4 sec. | 12.4 sec. | 12.4 sec. | 12.2 sec. | 11.8 sec. | 12.3 sec. | 12.3 sec. |
| Significant height | 0.2m (0.7ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.6m (5.2ft) | 0.7m (2.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 07:36 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 54°F t and a low of 52°F. Precipitation is in the forecast (0.3in 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 18.6mph km/h (with gusts up to 28.6mph). Wave height will be up to 7.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  |  | | |  | |
| Outside temperature | 11°C (53°F) | 12°C (53°F) | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) |
| Perceived temperature | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0.1in | 0.1in | 0in | 0in | 0in | 0in |
| Humidity | 99% | 99% | 98% | 99% | 99% | 97% | 89% | 90% |
| Barometric pressure | 1022 hPa | 1021 hPa | 1019 hPa | 1017 hPa | 1017 hPa | 1016 hPa | 1016 hPa | 1017 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 11°C (53°F) | 12°C (53°F) | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) |
| Dew point | 11°C (52°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) | 10°C (49°F) | 9°C (49°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 20km/h (12mph) | 30km/h (19mph) | 26km/h (16mph) | 19km/h (12mph) | 21km/h (13mph) | 23km/h (14mph) | 23km/h (15mph) |
| Gusts | 23km/h (14mph) | 32km/h (20mph) | 46km/h (29mph) | 42km/h (26mph) | 32km/h (20mph) | 34km/h (21mph) | 37km/h (23mph) | 35km/h (22mph) |
| Direction | 199° SSW | 207° SSW | 205° SSW | 198° SSW | 244° WSW | 250° WSW | 252° WSW | 243° WSW |
| Wind chill | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.4m (4.7ft) | 1.6m (5.1ft) | 1.7m (5.7ft) | 1.8m (6.0ft) | 1.9m (6.2ft) | 2.1m (6.8ft) | 2.3m (7.6ft) |
| Direction | 272° W | 272° W | 272° W | 272° W | 272° W | 271° W | 272° W | 272° W |
| Period | 11.8 sec. | 11.7 sec. | 11.3 sec. | 11.1 sec. | 11.0 sec. | 10.9 sec. | 10.5 sec. | 10.5 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 1.1m (3.6ft) | 0.9m (3ft) | 0.7m (2.3ft) | 1.5m (4.9ft) | 1.2m (3.9ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 07:37 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 52°F t and a low of 50°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 16.2mph km/h (with gusts up to 24.2mph). 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 | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 11°C (52°F) | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
| Perceived temperature | 8°C (47°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (47°F) | 9°C (48°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 84% | 85% | 86% | 92% | 91% | 88% | 89% |
| Barometric pressure | 1018 hPa | 1019 hPa | 1020 hPa | 1020 hPa | 1021 hPa | 1021 hPa | 1021 hPa | 1021 hPa |
| Cloud cover | 80% | 72% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 11°C (52°F) | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
| Dew point | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 23km/h (14mph) | 15km/h (10mph) | 15km/h (9mph) | 16km/h (10mph) | 16km/h (10mph) | 14km/h (9mph) | 20km/h (13mph) |
| Gusts | 39km/h (24mph) | 34km/h (21mph) | 23km/h (14mph) | 23km/h (14mph) | 24km/h (15mph) | 25km/h (15mph) | 24km/h (15mph) | 30km/h (19mph) |
| Direction | 259° WSW | 279° W | 262° W | 235° SW | 225° SW | 239° WSW | 209° SSW | 199° SSW |
| Wind chill | 8°C (47°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (47°F) | 9°C (48°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 2.5m (8.2ft) | 2.7m (8.7ft) | 2.9m (9.5ft) | 3.1m (10.3ft) | 3.0m (9.9ft) | 2.8m (9.3ft) | 2.6m (8.4ft) | 2.3m (7.5ft) |
| Direction | 276° W | 280° W | 284° WNW | 291° WNW | 290° WNW | 289° WNW | 287° WNW | 286° WNW |
| Period | 10.7 sec. | 9.9 sec. | 10.5 sec. | 12.7 sec. | 12.6 sec. | 12.3 sec. | 11.7 sec. | 11.3 sec. |
| Significant height | 1.3m (4.3ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 07:38 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 54°F t and a low of 50°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 23mph km/h (with gusts up to 31.1mph). Wave height will be up to 7.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | |  | |
| Outside temperature | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 11°C (51°F) | 12°C (54°F) | 11°C (53°F) | 11°C (51°F) | 11°C (52°F) |
| Perceived temperature | 8°C (47°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 10°C (49°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 90% | 90% | 90% | 92% | 94% | 93% | 95% | 92% |
| Barometric pressure | 1021 hPa | 1021 hPa | 1019 hPa | 1018 hPa | 1019 hPa | 1021 hPa | 1022 hPa | 1024 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 93% | 57% | 85% |
| Heat index | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 11°C (51°F) | 12°C (54°F) | 11°C (53°F) | 11°C (51°F) | 11°C (52°F) |
| Dew point | 9°C (48°F) | 8°C (47°F) | 8°C (46°F) | 9°C (49°F) | 11°C (52°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 17km/h (11mph) | 18km/h (11mph) | 33km/h (21mph) | 37km/h (23mph) | 23km/h (14mph) | 12km/h (8mph) | 13km/h (8mph) |
| Gusts | 28km/h (17mph) | 25km/h (15mph) | 28km/h (17mph) | 50km/h (31mph) | 42km/h (26mph) | 36km/h (22mph) | 21km/h (13mph) | 21km/h (13mph) |
| Direction | 186° S | 164° SSE | 144° SE | 171° S | 212° SSW | 238° WSW | 213° SSW | 167° SSE |
| Wind chill | 8°C (47°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 10°C (49°F) |
| Waves | ||||||||
| Height | 2.1m (6.8ft) | 1.9m (6.2ft) | 2.3m (7.5ft) | 2.4m (8.0ft) | 2.3m (7.5ft) | 2.2m (7.3ft) | 2.1m (6.9ft) | 1.9m (6.4ft) |
| Direction | 283° WNW | 283° WNW | 279° W | 233° SW | 249° WSW | 262° W | 263° W | 265° W |
| Period | 10.9 sec. | 10.6 sec. | 10.7 sec. | 9.6 sec. | 14.5 sec. | 11.2 sec. | 10.6 sec. | 8.1 sec. |
| Significant height | 0.8m (2.6ft) | 1.0m (3.3ft) | 1.7m (5.6ft) | 1.9m (6.2ft) | 0.8m (2.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 07:39 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 54°F t and a low of 52°F. Precipitation is in the forecast (0.5in 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 33.6mph). 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 | 11°C (52°F) | 11°C (51°F) | 12°C (53°F) | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) |
| Perceived temperature | 9°C (49°F) | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0.1in | 0in | 0.1in | 0.1in | 0.1in | 0.1in |
| Humidity | 91% | 91% | 97% | 98% | 98% | 98% | 98% | 95% |
| Barometric pressure | 1024 hPa | 1023 hPa | 1020 hPa | 1020 hPa | 1019 hPa | 1017 hPa | 1017 hPa | 1018 hPa |
| Cloud cover | 88% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 11°C (52°F) | 11°C (51°F) | 12°C (53°F) | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 11°C (52°F) |
| Dew point | 10°C (49°F) | 9°C (49°F) | 11°C (52°F) | 12°C (53°F) | 11°C (53°F) | 12°C (53°F) | 12°C (53°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 13km/h (8mph) | 24km/h (15mph) | 41km/h (26mph) | 40km/h (25mph) | 44km/h (27mph) | 44km/h (27mph) | 36km/h (23mph) |
| Gusts | 23km/h (14mph) | 21km/h (13mph) | 39km/h (24mph) | 48km/h (30mph) | 41km/h (26mph) | 47km/h (29mph) | 48km/h (30mph) | 54km/h (33mph) |
| Direction | 170° S | 144° SE | 174° S | 207° SSW | 193° SSW | 206° SSW | 221° SW | 293° WNW |
| Wind chill | 9°C (49°F) | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 1.9m (6.1ft) | 1.9m (6.3ft) | 2.0m (6.5ft) | 2.1m (6.8ft) | 2.3m (7.5ft) | 3.1m (10.1ft) | 2.4m (7.9ft) | 2.8m (9.1ft) |
| Direction | 270° W | 277° W | 285° WNW | 285° WNW | 285° WNW | 224° SW | 290° WNW | 289° WNW |
| Period | 8.3 sec. | 9.1 sec. | 10.5 sec. | 10.7 sec. | 10.8 sec. | 11.3 sec. | 11.1 sec. | 11.2 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.9m (3ft) | 1.6m (5.2ft) | 2.5m (8.2ft) | 1.2m (3.9ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 07:40 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 52°F t and a low of 47°F. Precipitation is in the forecast (0.2in 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 13.7mph km/h (with gusts up to 21.1mph). 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 | 11°C (52°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) |
| Perceived temperature | 9°C (48°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 83% | 79% | 77% | 81% | 82% | 82% | 81% | 89% |
| Barometric pressure | 1021 hPa | 1024 hPa | 1024 hPa | 1025 hPa | 1024 hPa | 1022 hPa | 1018 hPa | 1014 hPa |
| Cloud cover | 87% | 100% | 100% | 73% | 74% | 94% | 100% | 100% |
| Heat index | 11°C (52°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) |
| Dew point | 9°C (47°F) | 6°C (43°F) | 6°C (42°F) | 7°C (44°F) | 7°C (44°F) | 6°C (44°F) | 6°C (43°F) | 7°C (44°F) |
| Wind | ||||||||
| Speed | 22km/h (14mph) | 19km/h (12mph) | 10km/h (6mph) | 18km/h (11mph) | 20km/h (12mph) | 14km/h (9mph) | 15km/h (9mph) | 19km/h (12mph) |
| Gusts | 34km/h (21mph) | 26km/h (16mph) | 15km/h (9mph) | 26km/h (16mph) | 28km/h (17mph) | 22km/h (14mph) | 24km/h (15mph) | 30km/h (18mph) |
| Direction | 290° WNW | 297° WNW | 239° WSW | 198° SSW | 182° S | 165° SSE | 138° SE | 134° SE |
| Wind chill | 9°C (48°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) |
| Waves | ||||||||
| Height | 3.1m (10.2ft) | 3.2m (10.4ft) | 3.1m (10.2ft) | 2.9m (9.5ft) | 2.8m (9.2ft) | 2.9m (9.5ft) | 3.1m (10.2ft) | 3.2m (10.5ft) |
| Direction | 287° WNW | 285° WNW | 283° WNW | 283° WNW | 282° WNW | 287° WNW | 291° WNW | 290° WNW |
| Period | 11.1 sec. | 11.3 sec. | 11.6 sec. | 11.6 sec. | 11.7 sec. | 13.5 sec. | 14.2 sec. | 13.9 sec. |
| Significant height | 1.1m (3.6ft) | 0.6m (2ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.1m (0.3ft) | 0.2m (0.7ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 07:40 and will set at 16:27 on the beach(es) of Portland. The outside temperature will be a high of 54°F t and a low of 49°F. Precipitation is in the forecast (0.3in 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 28mph km/h (with gusts up to 29.8mph). Wave height will be up to 11.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | |  | | |
| Outside temperature | 11°C (52°F) | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 9°C (49°F) |
| Perceived temperature | 8°C (46°F) | 9°C (48°F) | 9°C (48°F) | 9°C (47°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) |
| Precipitation | 0.1in | 0in | 0.1in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 96% | 97% | 97% | 94% | 85% | 80% | 76% | 78% |
| Barometric pressure | 1010 hPa | 1009 hPa | 1009 hPa | 1012 hPa | 1014 hPa | 1017 hPa | 1019 hPa | 1020 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 61% | 35% | 42% | 82% |
| Heat index | 11°C (52°F) | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) | 9°C (49°F) |
| Dew point | 10°C (51°F) | 12°C (53°F) | 12°C (53°F) | 11°C (51°F) | 8°C (47°F) | 7°C (44°F) | 5°C (42°F) | 6°C (42°F) |
| Wind | ||||||||
| Speed | 34km/h (21mph) | 42km/h (26mph) | 45km/h (28mph) | 33km/h (21mph) | 23km/h (15mph) | 21km/h (13mph) | 13km/h (8mph) | 9km/h (6mph) |
| Gusts | 39km/h (24mph) | 44km/h (28mph) | 48km/h (30mph) | 44km/h (27mph) | 36km/h (22mph) | 32km/h (20mph) | 21km/h (13mph) | 15km/h (9mph) |
| Direction | 204° SSW | 239° WSW | 246° WSW | 276° W | 300° WNW | 310° NW | 302° WNW | 242° WSW |
| Wind chill | 8°C (46°F) | 9°C (48°F) | 9°C (48°F) | 9°C (47°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 3.1m (10.2ft) | 2.9m (9.5ft) | 2.8m (9.2ft) | 3.0m (9.8ft) | 3.1m (10.2ft) | 3.3m (10.8ft) | 3.3m (10.8ft) | 3.4m (11.2ft) |
| Direction | 289° WNW | 287° WNW | 286° WNW | 285° WNW | 284° WNW | 283° WNW | 283° WNW | 283° WNW |
| Period | 13.6 sec. | 13.4 sec. | 13.4 sec. | 13.4 sec. | 13.3 sec. | 13.3 sec. | 13.1 sec. | 12.8 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |