Station 44090 - Cape Cod Bay, MA (221)
December 20, 2025 6:30 pm ESTLocation: 41.84N 70.329W
Significant Wave Height: 1.3 ft
Dominant Wave Period: 4 sec
Average Period: 2.7 sec
Mean Wave Direction: N (357°)
Air Temperature: 37.2°F (2.9°C)
Water Temperature: 44.1°F (6.7°C)
Tonight - 36°F
Dec 20, 2025
14 to 29 mph SW
Mostly Cloudy
Mostly cloudy. Low around 36, with temperatures rising to around 43 overnight. Southwest wind 14 to 29 mph, with gusts as high as 39 mph.
Sunday - 46°F
Dec 21, 2025
21 to 28 mph W
Mostly Sunny
Mostly sunny. High near 46, with temperatures falling to around 39 in the afternoon. West wind 21 to 28 mph.
Sunday Night - 27°F
Dec 21, 2025
23 to 28 mph NW
Partly Cloudy
Partly cloudy, with a low around 27. Northwest wind 23 to 28 mph, with gusts as high as 38 mph.
Monday - 35°F
Dec 22, 2025
15 to 28 mph NW
Sunny
Sunny, with a high near 35. Northwest wind 15 to 28 mph, with gusts as high as 38 mph.
Monday Night - 29°F
Dec 22, 2025
8 to 14 mph W
Mostly Cloudy then Slight Chance Light Snow
A slight chance of snow after 5am. Mostly cloudy, with a low around 29. West wind 8 to 14 mph. Chance of precipitation is 20%.
Tuesday - 42°F
Dec 23, 2025
7 to 17 mph SW
Light Snow then Light Rain
Snow before noon, then rain. Cloudy, with a high near 42. Southwest wind 7 to 17 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday Night - 33°F
Dec 23, 2025
17 to 29 mph W
Light Rain Likely then Slight Chance Rain And Snow Showers
Rain likely before 7pm, then rain showers likely between 7pm and 4am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 33. West wind 17 to 29 mph. Chance of precipitation is 70%.
Wednesday - 39°F
Dec 24, 2025
20 to 29 mph NW
Slight Chance Rain And Snow Showers then Mostly Sunny
A slight chance of rain and snow showers before 10am. Mostly sunny, with a high near 39. Northwest wind 20 to 29 mph.
Wednesday Night - 30°F
Dec 24, 2025
7 to 16 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 30. Northwest wind 7 to 16 mph.
Christmas Day - 41°F
Dec 25, 2025
8 to 13 mph W
Partly Sunny
Partly sunny, with a high near 41. West wind 8 to 13 mph.
Thursday Night - 35°F
Dec 25, 2025
12 mph SW
Chance Light Rain
A slight chance of rain showers before 7pm, then a chance of rain. Mostly cloudy, with a low around 35. Southwest wind around 12 mph. Chance of precipitation is 50%.
Friday - 42°F
Dec 26, 2025
13 to 16 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 42. Southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Friday Night - 34°F
Dec 26, 2025
15 mph W
Chance Light Rain
A chance of rain before 2am. Mostly cloudy, with a low around 34. West wind around 15 mph. Chance of precipitation is 30%.
Saturday - 38°F
Dec 27, 2025
15 mph W
Chance Light Rain
A chance of rain after 7am. Partly sunny, with a high near 38. West wind around 15 mph.