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Bay Slough, CA - East End Marine Weather Forecast

Station RTYC1 - 9414523 - Redwood City, CA

December 18, 2025 10:00 pm PST
Location: 37.507N 122.212W
Wind Direction: E (100°)
Wind Speed: 1.9 knots
Wind Gust: 2.9 knots
Atmospheric Pressure: 30.12 in (1020.1 mb)
Air Temperature: 53.8°F (12.1°C)
Water Temperature: 54.7°F (12.6°C)


Tonight - 49°F
Dec 19, 2025
2 mph S
Slight Chance Light Rain then Patchy Fog
A slight chance of rain before 11pm, then patchy fog and a slight chance of rain. Mostly cloudy. Low around 49, with temperatures rising to around 51 overnight. South wind around 2 mph. Chance of precipitation is 20%.
Friday - 64°F
Dec 19, 2025
3 to 9 mph S
Light Rain
Rain after 10am. Mostly cloudy. High near 64, with temperatures falling to around 60 in the afternoon. South wind 3 to 9 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
Friday Night - 54°F
Dec 19, 2025
2 to 7 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 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday - 60°F
Dec 20, 2025
3 mph S
Light Rain
Rain and patchy fog. Cloudy, with a high near 60. South wind around 3 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
3 to 7 mph S
Light Rain
Rain. Cloudy, with a low around 55. South wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday - 61°F
Dec 21, 2025
7 to 15 mph S
Showers And Thunderstorms
Rain before 10am, then showers and thunderstorms between 10am and 4pm, then rain. Cloudy, with a high near 61. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night - 54°F
Dec 21, 2025
9 to 16 mph S
Rain
Rain. Cloudy, with a low around 54.
Monday - 60°F
Dec 22, 2025
12 mph S
Rain
Rain. Cloudy, with a high near 60.
Monday Night - 51°F
Dec 22, 2025
6 to 10 mph S
Light Rain
Rain. Cloudy, with a low around 51.
Tuesday - 59°F
Dec 23, 2025
6 to 10 mph SSE
Rain
Rain. Cloudy, with a high near 59.
Tuesday Night - 49°F
Dec 23, 2025
7 to 10 mph S
Rain
Rain. Cloudy, with a low around 49.
Wednesday - 59°F
Dec 24, 2025
7 to 12 mph S
Light Rain
Rain. Mostly cloudy, with a high near 59.
Wednesday Night - 50°F
Dec 24, 2025
9 to 13 mph SSE
Rain
Rain. Mostly cloudy, with a low around 50.
Christmas Day - 58°F
Dec 25, 2025
9 to 16 mph S
Rain
Rain before 5pm. Mostly cloudy, with a high near 58.

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