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Alcatraz Island, CA Marine Weather Forecast

Station PXSC1 - 9414296 - Pier 17, San Francisco Bay, CA

July 2, 2026 3:54 pm PDT
Location: 37.803N 122.397W
Air Temperature: 62.1°F (16.7°C)
Dew Point: 58.5°F (14.7°C)
Visibility: 5.9 nmi


This Afternoon - 61°F
Jul 02, 2026
13 mph WSW
Mostly Sunny
Mostly sunny, with a high near 61. West southwest wind around 13 mph, with gusts as high as 20 mph.
Tonight - 55°F
Jul 02, 2026
7 to 13 mph SW
Partly Cloudy
Partly cloudy, with a low around 55. Southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Friday - 61°F
Jul 03, 2026
7 to 13 mph SW
Mostly Sunny
Mostly sunny, with a high near 61. Southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Friday Night - 56°F
Jul 03, 2026
8 to 12 mph SW
Mostly Cloudy
Mostly cloudy, with a low around 56. Southwest wind 8 to 12 mph, with gusts as high as 18 mph.
Independence Day - 61°F
Jul 04, 2026
8 to 13 mph SW
Partly Sunny
Partly sunny, with a high near 61. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Saturday Night - 56°F
Jul 04, 2026
9 to 13 mph WSW
Mostly Cloudy
Mostly cloudy, with a low around 56.
Sunday - 60°F
Jul 05, 2026
9 to 15 mph SW
Partly Sunny
Partly sunny, with a high near 60.
Sunday Night - 56°F
Jul 05, 2026
10 to 15 mph WSW
Mostly Cloudy
Mostly cloudy, with a low around 56.
Monday - 59°F
Jul 06, 2026
10 to 16 mph WSW
Partly Sunny
Partly sunny, with a high near 59.
Monday Night - 55°F
Jul 06, 2026
10 to 17 mph WSW
Mostly Cloudy
Mostly cloudy, with a low around 55.
Tuesday - 60°F
Jul 07, 2026
9 to 16 mph WSW
Partly Sunny
Partly sunny, with a high near 60.
Tuesday Night - 55°F
Jul 07, 2026
10 to 16 mph WSW
Partly Cloudy
Partly cloudy, with a low around 55.
Wednesday - 61°F
Jul 08, 2026
9 to 14 mph WSW
Mostly Sunny
Mostly sunny, with a high near 61.
Wednesday Night - 56°F
Jul 08, 2026
8 to 14 mph WSW
Partly Cloudy
Partly cloudy, with a low around 56.

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