Sea weather in Cape Cod National Seashore in the United States (USA) All the beach weather in Cape Cod National Seashore
All the essential weather information for enjoying the beach in Cape Cod National Seashore 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 Cape Cod National Seashore over the next 7 days?
Discover the best moment to go to the beach in Cape Cod National Seashore 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 Cape Cod National Seashore. 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 |
|---|---|---|---|---|
| Saturday 13 December 2025 | 32°F to 40°F | 13.7mph | not recommended | all the sea weather |
| Sunday 14 December 2025 | 27°F to 36°F | 24.9mph | not recommended | all the sea weather |
| Monday 15 December 2025 | 20°F to 29°F | 16.2mph | not recommended | all the sea weather |
| Tuesday 16 December 2025 | 27°F to 36°F | 13.1mph | not recommended | all the sea weather |
| Wednesday 17 December 2025 | 36°F to 47°F | 20.5mph | discouraged | all the sea weather |
| Thursday 18 December 2025 | 32°F to 43°F | 21.8mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 34°F to 54°F | 24.9mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Cape Cod National Seashore
Sea weather on Saturday 13 December 2025
On Saturday 13 December 2025, the sun will rise at 07:00 and will set at 16:10 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 40°F t and a low of 32°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 17.4mph km/h (with gusts up to 24.9mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | | |  | |  | |
| Outside temperature | 0°C (32°F) | 0°C (32°F) | 0°C (32°F) | 2°C (35°F) | 4°C (39°F) | 4°C (39°F) | 3°C (38°F) | 3°C (37°F) |
| Perceived temperature | -6°C (21°F) | -6°C (22°F) | -5°C (24°F) | -3°C (26°F) | -1°C (30°F) | -1°C (30°F) | 0°C (32°F) | -2°C (29°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 65% | 65% | 63% | 61% | 65% | 65% | 89% | 76% |
| Barometric pressure | 1018 hPa | 1020 hPa | 1020 hPa | 1020 hPa | 1018 hPa | 1017 hPa | 1016 hPa | 1017 hPa |
| Cloud cover | 2% | 5% | 81% | 100% | 85% | 99% | 70% | 100% |
| Heat index | 0°C (32°F) | 0°C (32°F) | 0°C (32°F) | 2°C (35°F) | 4°C (39°F) | 4°C (39°F) | 3°C (38°F) | 3°C (37°F) |
| Dew point | -6°C (21°F) | -6°C (22°F) | -6°C (21°F) | -5°C (23°F) | -2°C (28°F) | -2°C (28°F) | 2°C (35°F) | -1°C (31°F) |
| Wind | ||||||||
| Speed | 28km/h (18mph) | 25km/h (16mph) | 18km/h (11mph) | 19km/h (12mph) | 25km/h (15mph) | 27km/h (17mph) | 13km/h (8mph) | 22km/h (14mph) |
| Gusts | 38km/h (23mph) | 34km/h (21mph) | 25km/h (16mph) | 25km/h (16mph) | 34km/h (21mph) | 40km/h (25mph) | 23km/h (14mph) | 33km/h (21mph) |
| Direction | 272° W | 269° W | 255° WSW | 236° SW | 233° SW | 227° SW | 229° SW | 253° WSW |
| Wind chill | -6°C (21°F) | -6°C (22°F) | -5°C (24°F) | -3°C (26°F) | -1°C (30°F) | -1°C (30°F) | 0°C (32°F) | -2°C (29°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 0.9m (2.9ft) | 0.6m (2.0ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.6m (2.1ft) | 0.4m (1.5ft) | 0.6m (2.0ft) |
| Direction | 294° WNW | 283° WNW | 285° WNW | 262° W | 243° WSW | 250° WSW | 237° WSW | 252° WSW |
| Period | 0.1 sec. | 0.1 sec. | 0.1 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 0.7m (2.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 07:00 and will set at 16:10 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 36°F t and a low of 27°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 24.9mph km/h (with gusts up to 31.1mph). Wave height will be up to 4.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  | |  | | |
| Outside temperature | 2°C (36°F) | 1°C (34°F) | 1°C (34°F) | 1°C (34°F) | 0°C (32°F) | -1°C (31°F) | -1°C (31°F) | -2°C (28°F) |
| Perceived temperature | -2°C (28°F) | -2°C (28°F) | -3°C (27°F) | -3°C (26°F) | -5°C (22°F) | -7°C (19°F) | -8°C (18°F) | -11°C (13°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 98% | 97% | 97% | 96% | 80% | 81% | 84% |
| Barometric pressure | 1015 hPa | 1015 hPa | 1013 hPa | 1011 hPa | 1009 hPa | 1008 hPa | 1009 hPa | 1009 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 2°C (36°F) | 1°C (34°F) | 1°C (34°F) | 1°C (34°F) | 0°C (32°F) | -1°C (31°F) | -1°C (31°F) | -2°C (28°F) |
| Dew point | -1°C (30°F) | 1°C (33°F) | 0°C (33°F) | 1°C (33°F) | -0°C (31°F) | -3°C (26°F) | -3°C (26°F) | -5°C (23°F) |
| Wind | ||||||||
| Speed | 20km/h (12mph) | 11km/h (7mph) | 13km/h (8mph) | 17km/h (11mph) | 22km/h (14mph) | 28km/h (18mph) | 34km/h (21mph) | 40km/h (25mph) |
| Gusts | 27km/h (17mph) | 15km/h (9mph) | 18km/h (11mph) | 23km/h (14mph) | 31km/h (19mph) | 39km/h (24mph) | 48km/h (30mph) | 50km/h (31mph) |
| Direction | 254° WSW | 267° W | 293° WNW | 331° NNW | 331° NNW | 324° NW | 319° NW | 322° NW |
| Wind chill | -2°C (28°F) | -2°C (28°F) | -3°C (27°F) | -3°C (26°F) | -5°C (22°F) | -7°C (19°F) | -8°C (18°F) | -11°C (13°F) |
| Waves | ||||||||
| Height | 0.6m (1.8ft) | 0.3m (1.0ft) | 0.2m (0.7ft) | 0.3m (1.1ft) | 0.7m (2.2ft) | 0.7m (2.3ft) | 0.9m (3.0ft) | 1.4m (4.6ft) |
| Direction | 266° W | 268° W | 272° W | 294° WNW | 310° NW | 317° NW | 322° NW | 327° NNW |
| Period | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. |
| Significant height | 0.8m (2.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.8m (5.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 07:01 and will set at 16:11 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 29°F t and a low of 20°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 26.1mph km/h (with gusts up to 31.7mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  |  | | | |
| Outside temperature | -4°C (24°F) | -6°C (21°F) | -6°C (22°F) | -4°C (24°F) | -4°C (25°F) | -3°C (28°F) | -3°C (26°F) | -3°C (27°F) |
| Perceived temperature | -13°C (8°F) | -16°C (4°F) | -15°C (6°F) | -13°C (9°F) | -12°C (11°F) | -10°C (14°F) | -11°C (13°F) | -10°C (14°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 67% | 70% | 69% | 68% | 57% | 53% | 62% | 64% |
| Barometric pressure | 1010 hPa | 1011 hPa | 1013 hPa | 1015 hPa | 1015 hPa | 1015 hPa | 1016 hPa | 1017 hPa |
| Cloud cover | 65% | 64% | 100% | 50% | 3% | 13% | 50% | 100% |
| Heat index | -4°C (24°F) | -6°C (21°F) | -6°C (22°F) | -4°C (24°F) | -4°C (25°F) | -3°C (28°F) | -3°C (26°F) | -3°C (27°F) |
| Dew point | -10°C (15°F) | -11°C (12°F) | -10°C (14°F) | -9°C (15°F) | -11°C (12°F) | -11°C (13°F) | -10°C (15°F) | -9°C (16°F) |
| Wind | ||||||||
| Speed | 42km/h (26mph) | 40km/h (25mph) | 37km/h (23mph) | 34km/h (21mph) | 32km/h (20mph) | 30km/h (19mph) | 28km/h (18mph) | 26km/h (16mph) |
| Gusts | 51km/h (32mph) | 48km/h (30mph) | 45km/h (28mph) | 40km/h (25mph) | 48km/h (30mph) | 45km/h (28mph) | 41km/h (26mph) | 34km/h (21mph) |
| Direction | 317° NW | 309° NW | 317° NW | 310° NW | 301° WNW | 289° WNW | 285° WNW | 280° W |
| Wind chill | -13°C (8°F) | -16°C (4°F) | -15°C (6°F) | -13°C (9°F) | -12°C (11°F) | -10°C (14°F) | -11°C (13°F) | -10°C (14°F) |
| Waves | ||||||||
| Height | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.4m (4.8ft) | 1.4m (4.5ft) | 1.2m (3.8ft) | 1.0m (3.1ft) | 1.0m (3.3ft) | 0.9m (2.9ft) |
| Direction | 331° NNW | 323° NW | 325° NW | 326° NNW | 317° NW | 303° WNW | 299° WNW | 300° WNW |
| Period | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. |
| Significant height | 2.0m (6.6ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 07:02 and will set at 16:11 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 36°F t and a low of 27°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 16.2mph km/h (with gusts up to 21.8mph). Wave height will be up to 2.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | -2°C (28°F) | -1°C (30°F) | -2°C (29°F) | -2°C (29°F) | -2°C (29°F) | -1°C (31°F) | -1°C (31°F) | 1°C (34°F) |
| Perceived temperature | -9°C (16°F) | -7°C (19°F) | -7°C (20°F) | -6°C (22°F) | -6°C (22°F) | -5°C (22°F) | -6°C (22°F) | -4°C (25°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 68% | 69% | 74% | 68% | 55% | 60% | 71% | 74% |
| Barometric pressure | 1017 hPa | 1018 hPa | 1019 hPa | 1022 hPa | 1021 hPa | 1021 hPa | 1022 hPa | 1020 hPa |
| Cloud cover | 100% | 75% | 20% | 4% | 2% | 15% | 39% | 83% |
| Heat index | -2°C (28°F) | -1°C (30°F) | -2°C (29°F) | -2°C (29°F) | -2°C (29°F) | -1°C (31°F) | -1°C (31°F) | 1°C (34°F) |
| Dew point | -7°C (19°F) | -6°C (21°F) | -6°C (22°F) | -7°C (20°F) | -10°C (15°F) | -7°C (19°F) | -5°C (22°F) | -3°C (26°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 23km/h (14mph) | 17km/h (10mph) | 12km/h (7mph) | 12km/h (7mph) | 17km/h (10mph) | 17km/h (11mph) | 21km/h (13mph) |
| Gusts | 35km/h (21mph) | 31km/h (19mph) | 23km/h (14mph) | 16km/h (10mph) | 19km/h (12mph) | 25km/h (16mph) | 28km/h (18mph) | 31km/h (19mph) |
| Direction | 275° W | 286° WNW | 281° W | 279° W | 245° WSW | 222° SW | 227° SW | 229° SW |
| Wind chill | -9°C (16°F) | -7°C (19°F) | -7°C (20°F) | -6°C (22°F) | -6°C (22°F) | -5°C (22°F) | -6°C (22°F) | -4°C (25°F) |
| Waves | ||||||||
| Height | 0.8m (2.8ft) | 0.7m (2.3ft) | 0.5m (1.8ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1.0ft) | 0.3m (1.1ft) | 0.4m (1.2ft) |
| Direction | 291° WNW | 287° WNW | 291° WNW | 298° WNW | 287° WNW | 287° WNW | 259° WSW | 254° WSW |
| Period | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. |
| Significant height | 1.2m (3.9ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 07:02 and will set at 16:11 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 47°F t and a low of 36°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 24.2mph km/h (with gusts up to 31.1mph). 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 | 2°C (36°F) | 3°C (37°F) | 4°C (39°F) | 6°C (44°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 5°C (41°F) |
| Perceived temperature | -3°C (26°F) | -3°C (27°F) | -1°C (30°F) | 1°C (35°F) | 3°C (37°F) | 1°C (34°F) | 1°C (33°F) | -0°C (32°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 77% | 74% | 77% | 75% | 72% | 78% | 83% | 84% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1016 hPa | 1013 hPa | 1010 hPa | 1008 hPa | 1008 hPa | 1011 hPa |
| Cloud cover | 67% | 48% | 24% | 4% | 36% | 14% | 33% | 33% |
| Heat index | 2°C (36°F) | 3°C (37°F) | 4°C (39°F) | 6°C (44°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 5°C (41°F) |
| Dew point | -1°C (29°F) | -1°C (30°F) | 1°C (33°F) | 2°C (36°F) | 3°C (37°F) | 3°C (37°F) | 3°C (38°F) | 2°C (36°F) |
| Wind | ||||||||
| Speed | 25km/h (15mph) | 31km/h (19mph) | 32km/h (20mph) | 36km/h (22mph) | 39km/h (24mph) | 39km/h (24mph) | 38km/h (23mph) | 33km/h (20mph) |
| Gusts | 36km/h (23mph) | 45km/h (28mph) | 50km/h (31mph) | 42km/h (26mph) | 44km/h (27mph) | 43km/h (27mph) | 39km/h (24mph) | 35km/h (21mph) |
| Direction | 236° WSW | 233° SW | 223° SW | 220° SW | 221° SW | 221° SW | 236° WSW | 258° WSW |
| Wind chill | -3°C (26°F) | -3°C (27°F) | -1°C (30°F) | 1°C (35°F) | 3°C (37°F) | 1°C (34°F) | 1°C (33°F) | -0°C (32°F) |
| Waves | ||||||||
| Height | 0.4m (1.4ft) | 0.6m (2.1ft) | 0.8m (2.6ft) | 0.9m (2.9ft) | 1.1m (3.6ft) | 1.1m (3.7ft) | 1.1m (3.6ft) | 1.0m (3.2ft) |
| Direction | 257° WSW | 253° WSW | 242° WSW | 235° SW | 237° WSW | 231° SW | 242° WSW | 236° WSW |
| Period | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 3.9 sec. | 8.9 sec. |
| Significant height | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 07:03 and will set at 16:12 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 43°F t and a low of 32°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 24.9mph km/h (with gusts up to 30.5mph). 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 | 6°C (42°F) | 2°C (36°F) | 1°C (33°F) | 1°C (33°F) | 2°C (35°F) | 1°C (34°F) | 3°C (37°F) | 5°C (42°F) |
| Perceived temperature | -0°C (32°F) | -4°C (24°F) | -5°C (23°F) | -3°C (27°F) | -1°C (30°F) | -3°C (26°F) | -3°C (27°F) | 0°C (33°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 68% | 61% | 59% | 56% | 51% | 57% | 68% | 83% |
| Barometric pressure | 1014 hPa | 1020 hPa | 1024 hPa | 1026 hPa | 1025 hPa | 1024 hPa | 1021 hPa | 1016 hPa |
| Cloud cover | 0% | 0% | 11% | 10% | 34% | 20% | 52% | 92% |
| Heat index | 6°C (42°F) | 2°C (36°F) | 1°C (33°F) | 1°C (33°F) | 2°C (35°F) | 1°C (34°F) | 3°C (37°F) | 5°C (42°F) |
| Dew point | 0°C (32°F) | -5°C (24°F) | -6°C (20°F) | -7°C (19°F) | -8°C (18°F) | -7°C (20°F) | -3°C (27°F) | 3°C (37°F) |
| Wind | ||||||||
| Speed | 40km/h (25mph) | 35km/h (22mph) | 23km/h (14mph) | 12km/h (8mph) | 8km/h (5mph) | 16km/h (10mph) | 28km/h (17mph) | 35km/h (21mph) |
| Gusts | 40km/h (25mph) | 49km/h (31mph) | 33km/h (21mph) | 17km/h (11mph) | 11km/h (7mph) | 28km/h (17mph) | 36km/h (22mph) | 40km/h (25mph) |
| Direction | 275° W | 297° WNW | 305° NW | 270° W | 191° SSW | 160° SSE | 166° SSE | 170° S |
| Wind chill | -0°C (32°F) | -4°C (24°F) | -5°C (23°F) | -3°C (27°F) | -1°C (30°F) | -3°C (26°F) | -3°C (27°F) | 0°C (33°F) |
| Waves | ||||||||
| Height | 0.9m (2.9ft) | 0.8m (2.5ft) | 0.6m (2.0ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.6m (2.0ft) | 0.9m (3.0ft) | 1.1m (3.6ft) |
| Direction | 247° WSW | 220° SW | 212° SSW | 207° SSW | 205° SSW | 184° S | 172° S | 175° S |
| Period | 8.0 sec. | 7.8 sec. | 7.6 sec. | 7.5 sec. | 7.3 sec. | 9.5 sec. | 10.6 sec. | 10.7 sec. |
| Significant height | 1.1m (3.6ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 07:04 and will set at 16:12 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 54°F t and a low of 34°F. Precipitation is in the forecast (0.2in 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 29.8mph km/h (with gusts up to 31.7mph). Wave height will be up to 6.9ft 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) | 11°C (51°F) | 12°C (53°F) | 10°C (49°F) | 8°C (46°F) | 4°C (39°F) | 1°C (34°F) | 1°C (34°F) |
| Perceived temperature | 4°C (40°F) | 7°C (44°F) | 8°C (46°F) | 5°C (42°F) | 3°C (38°F) | -3°C (27°F) | -6°C (21°F) | -6°C (21°F) |
| Precipitation | 0in | 0.1in | 0.1in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 92% | 93% | 93% | 81% | 67% | 59% | 59% | 61% |
| Barometric pressure | 1010 hPa | 1005 hPa | 1002 hPa | 1003 hPa | 1003 hPa | 1007 hPa | 1012 hPa | 1016 hPa |
| Cloud cover | 73% | 87% | 100% | 64% | 22% | 6% | 15% | 14% |
| Heat index | 9°C (48°F) | 11°C (51°F) | 12°C (53°F) | 10°C (49°F) | 8°C (46°F) | 4°C (39°F) | 1°C (34°F) | 1°C (34°F) |
| Dew point | 7°C (45°F) | 10°C (49°F) | 10°C (51°F) | 6°C (44°F) | 2°C (35°F) | -4°C (26°F) | -6°C (21°F) | -6°C (22°F) |
| Wind | ||||||||
| Speed | 39km/h (24mph) | 45km/h (28mph) | 48km/h (30mph) | 39km/h (24mph) | 35km/h (21mph) | 43km/h (27mph) | 44km/h (27mph) | 40km/h (25mph) |
| Gusts | 41km/h (26mph) | 49km/h (30mph) | 51km/h (32mph) | 42km/h (26mph) | 37km/h (23mph) | 48km/h (30mph) | 48km/h (30mph) | 51km/h (32mph) |
| Direction | 186° S | 200° SSW | 215° SW | 236° SW | 254° WSW | 278° W | 284° WNW | 283° WNW |
| Wind chill | 4°C (40°F) | 7°C (44°F) | 8°C (46°F) | 5°C (42°F) | 3°C (38°F) | -3°C (27°F) | -6°C (21°F) | -6°C (21°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.7m (5.6ft) | 2.1m (6.9ft) | 1.6m (5.2ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.1m (3.6ft) |
| Direction | 185° S | 192° SSW | 197° SSW | 204° SSW | 253° WSW | 296° WNW | 319° NW | 330° NNW |
| Period | 10.8 sec. | 10.8 sec. | 10.8 sec. | 10.8 sec. | 9.2 sec. | 8.4 sec. | 8.4 sec. | 8.5 sec. |
| Significant height | 1.4m (4.6ft) | 1.7m (5.6ft) | 2.1m (6.9ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |