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Seaplane Harbor, CA Marine Weather Forecast

Station AAMC1 - 9414750 - Alameda, CA

December 18, 2025 9:30 pm PST
Location: 37.772N 122.3W
Wind Direction: ESE (110°)
Wind Speed: 2.9 knots
Wind Gust: 2.9 knots
Atmospheric Pressure: 30.12 in (1020.0 mb)
Air Temperature: 53.2°F (11.8°C)
Water Temperature: 53.2°F (11.8°C)


This Afternoon - 57°F
Dec 18, 2025
2 mph W
Partly Sunny
Partly sunny, with a high near 57. West wind around 2 mph.
Tonight - 51°F
Dec 18, 2025
1 to 5 mph SW
Chance Light Rain
Patchy fog between 8pm and 10pm, then a chance of rain and patchy fog. Mostly cloudy, with a low around 51. Southwest wind 1 to 5 mph. Chance of precipitation is 30%.
Friday - 59°F
Dec 19, 2025
6 to 10 mph S
Light Rain
Rain. Cloudy. High near 59, with temperatures falling to around 57 in the afternoon. South wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night - 54°F
Dec 19, 2025
2 to 8 mph SSW
Light Rain
Rain before 4am, then a chance of rain and patchy fog. Cloudy, with a low around 54. South southwest wind 2 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 57°F
Dec 20, 2025
5 mph S
Rain
Rain and patchy fog. Cloudy, with a high near 57. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night - 55°F
Dec 20, 2025
5 to 12 mph S
Rain
Rain. Cloudy, with a low around 55. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday - 58°F
Dec 21, 2025
12 to 16 mph S
Showers And Thunderstorms
Rain before 10am, then showers and thunderstorms between 10am and 1pm, then rain. Cloudy, with a high near 58.
Sunday Night - 56°F
Dec 21, 2025
15 to 20 mph S
Rain
Rain. Cloudy, with a low around 56.
Monday - 57°F
Dec 22, 2025
9 to 16 mph S
Rain
Rain. Cloudy, with a high near 57.
Monday Night - 52°F
Dec 22, 2025
9 mph S
Rain
Rain. Cloudy, with a low around 52.
Tuesday - 55°F
Dec 23, 2025
9 mph SSE
Rain
Rain. Cloudy, with a high near 55.
Tuesday Night - 50°F
Dec 23, 2025
12 mph S
Rain
Rain. Cloudy, with a low around 50.
Wednesday - 56°F
Dec 24, 2025
9 to 13 mph S
Rain
Rain. Mostly cloudy, with a high near 56.
Wednesday Night - 51°F
Dec 24, 2025
13 to 17 mph SSE
Rain
Rain. Mostly cloudy, with a low around 51.

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