How is the weather in Brannan Island, CA?

At 9:20 PM on Wed, Sep 17, 2025 it is 80 degrees Fahrenheit, feeling like 80 degrees.

Brannan Island, CA Weather Forecast and Current Conditions

80°F
Feels Like 80°F

Humidity 34% Dew Point 49°F Wind S 5 MPH Gusts 10 Barometer 29.81 in.757.2 mm

Solar Rad 0 w/m2 Visibility 12.43 mi.

Report from 1.6 miles WNW of central Brannan Island at 9:20 PM Wed, Sep 17, 2025

Current Weather

80°F
Feels Like 80°F

Humidity 34% Dew Point 49°F Wind S 5 MPH Gusts 10 Barometer 29.81 in.757.2 mm

Solar Rad 0 w/m2 Visibility 12.43 mi.

Report from 1.6 miles WNW of central Brannan Island at 9:20 PM Wed, Sep 17, 2025

Forecast at a Glance

WedSep 17

66°

ThuSep 18

30%

85°

64°

FriSep 19

30%

81°

62°

SatSep 20

10%

86°

61°

SunSep 21

91°

62°

MonSep 22

10%

93°

65°

TueSep 23

30%

82°

62°

This Date in Weather History

1926 - The great ""Miami Hurricane"" produced winds reaching 138 mph which drove ocean waters into the Biscayne Bay drowning 135 persons. The eye of the hurricane passed over Miami, at which time the barometric pressure reached 27.61 inches. Tides up to twelve feet high accompanied the hurricane, which claimed a total of 372 lives.

Brannan Island 7 Day Weather Forecast Details

Wednesday Sep 17

Night: Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. West southwest wind around 9 mph, with gusts as high as 18 mph.

Thursday Sep 18

Day: A chance of rain showers after 5pm. Mostly cloudy. High near 85, with temperatures falling to around 83 in the afternoon. West southwest wind around 9 mph. Chance of precipitation is 30%.

Night: A chance of rain showers before 11pm, then a chance of showers and thunderstorms. Cloudy. Low around 64, with temperatures rising to around 66 overnight. West wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.

Friday Sep 19

Day: A chance of rain showers before 5pm. Mostly sunny, with a high near 81. West wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Night: Mostly clear, with a low around 62. West wind around 7 mph, with gusts as high as 18 mph.

Saturday Sep 20

Day: Sunny, with a high near 86.

Night: Clear, with a low around 61.

Sunday Sep 21

Day: Sunny, with a high near 91.

Night: Clear, with a low around 62.

Monday Sep 22

Day: Sunny, with a high near 93.

Night: A chance of rain showers after 5am. Partly cloudy, with a low around 65.

Tuesday Sep 23

Day: A chance of rain showers. Mostly sunny, with a high near 82.

Night: A slight chance of rain showers before 11pm. Partly cloudy, with a low around 62.

Wednesday Sep 24

Day: Sunny, with a high near 82.

Sun & Moon Monthly

First Light 6:25 AM

Sunrise 6:51 AM

Sunset 7:13 PM

Last Light 7:39 PM

Moonrise 2:24 AM

Moonset 5:26 PM

Moon Phase

Close Tide Stations

Rio Vista
(2.4 miles away)

Steamboat Slough, Snug Harbor Marina
(2.6 miles away)

Threemile Slough
(3.9 miles away)

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Weather Near Brannan Island

Contiguous United States Extremes

Wed's High Temperature
114 at Death Valley, CA

Wed's Low Temperature
21 at Peter Sinks, UT

Weather Folklore

Water rising in springs and wells indicates rain.

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