San Leandro Channel, San Leandro Bay, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Jul 23 		Cloudy -º / 58º 15% SW 7 mph 89%
Fri
Jul 24 		Partly Cloudy
View Hourly 		72º / 58º 20% WSW 15 mph 69%
3am Mostly Cloudy 59º 15% WSW 8 mph 90%
4am Mostly Cloudy 59º 15% SW 8 mph 90%
5am Cloudy 59º 15% SW 8 mph 88%
6am Cloudy 59º 15% WSW 8 mph 88%
7am Cloudy 59º 15% WSW 7 mph 87%
8am Cloudy 60º 16% SW 8 mph 86%
9am Mostly Cloudy 61º 18% SW 8 mph 83%
10am Mostly Cloudy 63º 6% SW 8 mph 78%
11am Mostly Sunny 65º 4% SW 9 mph 72%
12pm Sunny 67º 2% WSW 10 mph 66%
1pm Sunny 69º 1% WSW 12 mph 63%
2pm Sunny 70º 0% WSW 13 mph 59%
3pm Sunny 71º 0% WSW 14 mph 58%
4pm Sunny 71º 0% WSW 15 mph 58%
5pm Sunny 70º 1% W 15 mph 59%
6pm Mostly Sunny 69º 2% WSW 14 mph 63%
7pm Mostly Sunny 67º 3% WSW 13 mph 67%
8pm Mostly Sunny 65º 5% WSW 13 mph 73%
9pm Partly Cloudy 62º 7% WSW 11 mph 81%
10pm Partly Cloudy 61º 7% WSW 9 mph 84%
11pm Partly Cloudy 61º 7% WSW 8 mph 85%
Sat
Jul 25 		Partly Cloudy
View Hourly 		73º / 58º 21% WSW 15 mph 67%
12am Partly Cloudy 60º 8% WSW 8 mph 86%
1am Mostly Cloudy 60º 8% WSW 7 mph 86%
2am Mostly Cloudy 60º 8% WSW 7 mph 87%
3am Mostly Cloudy 59º 8% SW 8 mph 87%
4am Mostly Cloudy 59º 9% SW 8 mph 88%
5am Mostly Cloudy 59º 9% WSW 8 mph 87%
6am Cloudy 59º 21% WSW 8 mph 88%
7am Cloudy 60º 21% WSW 7 mph 86%
8am Cloudy 61º 20% WSW 8 mph 83%
9am Mostly Cloudy 63º 6% SW 8 mph 79%
10am Partly Cloudy 64º 5% SW 9 mph 75%
11am Sunny 66º 3% WSW 10 mph 70%
12pm Sunny 68º 1% WSW 11 mph 65%
1pm Sunny 70º 0% WSW 12 mph 61%
2pm Sunny 71º 0% WSW 14 mph 58%
3pm Sunny 72º 0% WSW 14 mph 56%
4pm Sunny 72º 0% W 15 mph 55%
5pm Sunny 71º 0% W 15 mph 57%
6pm Sunny 69º 1% W 14 mph 60%
7pm Sunny 67º 3% WSW 13 mph 66%
8pm Mostly Sunny 64º 5% WSW 13 mph 73%
9pm Partly Cloudy 62º 7% WSW 11 mph 80%
10pm Partly Cloudy 62º 7% WSW 9 mph 83%
11pm Partly Cloudy 61º 7% WSW 9 mph 84%
Sun
Jul 26 		AM Clouds/PM Sun
View Hourly 		72º / 58º 22% WSW 15 mph 71%
12am Partly Cloudy 61º 20% WSW 8 mph 86%
1am Mostly Cloudy 60º 20% SW 7 mph 87%
2am Mostly Cloudy 60º 20% WSW 7 mph 87%
Mon
Jul 27 		Partly Cloudy 74º / 58º 20% WSW 15 mph 67%
Tue
Jul 28 		Partly Cloudy 75º / 59º 19% WSW 15 mph 66%
Wed
Jul 29 		Partly Cloudy 75º / 58º 7% SW 14 mph 69%
Thu
Jul 30 		Partly Cloudy 77º / 58º 19% WSW 13 mph 63%

Weather Radar for San Leandro Channel, San Leandro Bay, CA See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for San Leandro Channel, San Leandro Bay, CA

Friday
High : 72ºF
Variable winds less than 5 kt becoming W 5 to 10 kt in the morning. Partly sunny, then gradually becoming sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Friday Night
Low : 58ºF
W wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Partly cloudy. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Saturday
High : 73ºF
WSW wind 5 to 9 kt. Mostly sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Saturday Night
Low : 58ºF
SW wind 5 to 9 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Sunday
High : 73ºF
Variable winds less than 5 kt becoming WSW 5 to 9 kt in the morning. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Sunday Night
Low : 58ºF
WSW wind 5 to 9 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Monday
High : 75ºF
Variable winds less than 5 kt becoming WSW 5 to 8 kt in the morning. Mostly sunny. N swell 0 ft. Wind waves 1 ft or less.
Monday Night
Low : 58ºF
SW wind 6 to 9 kt. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.
Tuesday
High : 72ºF
SW wind 5 to 8 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.

NOAA Buoy Data Near San Leandro Channel, San Leandro Bay, CA See Map

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    Wind Speed Forecast for San Leandro Channel, San Leandro Bay, CA

    FridaySaturdaySunday
    Wind Speed (MPH) 87914138871014139
    10am2pm6pm10pm2am6am10am2pm6pm10pm2am6am
    MPH 87914138871014139
    DIR WSWWSWSWWSWWSWWSWSWWSWWSWWSWWSWWSW

    Current Weather Conditions In San Leandro Channel, San Leandro Bay, CA

    As Of: 39 minutes ago

    • 59ºF
    • 58ºF
    • 8mph
    • 0º (WSW)
    • 8mph
    • Mostly Cloudy
    • 9mi
    • 29.96"
    • 90%
    • 0ºF

    The weather right now in San Leandro Channel, San Leandro Bay, CA is Mostly Cloudy. The current temperature is 59°F, and the expected high and low for today, Friday, July 24, 2026, are -° high temperature and 58°F low temperature. The wind is currently blowing at 8 miles per hour, and coming from the West Southwest. The wind is gusting to 8 mph. With the wind and the atmosphere the temperature feels like 58° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 90 percent, and air pressure at 29.96 in. Visibility is 9 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Small Craft Advisory - 8:46pm Thu Jul 23 2026

    ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM TO 9 PM PDT FRIDAY...

    WHAT: West winds 15 to 25 kt and a moderate chop expected.

    WHERE: San Francisco Bay South of the Bay Bridge.

    WHEN: From 3 PM to 9 PM PDT Friday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&