Alcatraz Island, CA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Jan 31
Sunny
Close Hourly
55º / 41º 1% NNE 7 mph 46%
6am Clear 42º 1% ENE 4 mph 54%
7am Clear 42º 1% ENE 5 mph 54%
8am Sunny 42º 1% ENE 5 mph 55%
9am Sunny 45º 0% NE 6 mph 51%
10am Sunny 48º 0% NE 7 mph 42%
11am Sunny 50º 0% NE 6 mph 38%
12pm Sunny 51º 0% NE 5 mph 36%
1pm Sunny 52º 0% NE 5 mph 34%
2pm Sunny 54º 0% NNE 4 mph 34%
3pm Sunny 54º 0% NW 6 mph 38%
4pm Sunny 54º 0% W 7 mph 43%
5pm Sunny 53º 1% W 7 mph 48%
6pm Mostly Clear 51º 1% WNW 6 mph 55%
7pm Mostly Clear 50º 1% NW 4 mph 59%
8pm Mostly Clear 49º 2% NNW 3 mph 63%
9pm Mostly Clear 48º 2% NE 3 mph 67%
10pm Mostly Clear 47º 3% NNE 3 mph 70%
11pm Mostly Clear 46º 4% ENE 2 mph 73%
Wed
Feb 1
Mostly Cloudy
View Hourly
57º / 43º 5% NNE 7 mph 62%
12am Partly Cloudy 45º 4% ENE 3 mph 74%
1am Partly Cloudy 45º 4% E 3 mph 74%
2am Partly Cloudy 44º 5% E 3 mph 76%
3am Partly Cloudy 44º 5% ENE 4 mph 76%
4am Partly Cloudy 43º 5% ENE 4 mph 76%
5am Partly Cloudy 42º 5% NE 4 mph 74%
6am Mostly Cloudy 42º 5% NE 5 mph 75%
7am Mostly Cloudy 42º 5% NE 6 mph 78%
8am Mostly Cloudy 42º 4% NE 6 mph 78%
9am Partly Cloudy 45º 3% NE 7 mph 74%
10am Mostly Cloudy 47º 2% NE 7 mph 67%
11am Mostly Cloudy 49º 2% NE 7 mph 63%
12pm Mostly Cloudy 51º 1% NE 7 mph 58%
1pm Mostly Cloudy 53º 1% NE 6 mph 55%
2pm Mostly Cloudy 54º 1% NE 6 mph 51%
3pm Mostly Cloudy 55º 1% NNE 5 mph 51%
4pm Mostly Cloudy 55º 1% N 6 mph 51%
5pm Mostly Cloudy 54º 2% N 6 mph 55%
6pm Mostly Cloudy 53º 2% NNE 4 mph 61%
7pm Partly Cloudy 51º 3% NNE 4 mph 65%
8pm Partly Cloudy 50º 3% ENE 3 mph 69%
9pm Partly Cloudy 49º 4% E 4 mph 73%
10pm Partly Cloudy 48º 5% E 3 mph 76%
11pm Partly Cloudy 47º 5% E 2 mph 78%
Thu
Feb 2
Cloudy
View Hourly
57º / 50º 19% ESE 11 mph 68%
12am Partly Cloudy 46º 5% ESE 3 mph 80%
1am Mostly Cloudy 46º 6% ESE 3 mph 81%
2am Partly Cloudy 45º 7% SE 2 mph 82%
3am Mostly Cloudy 45º 7% ESE 3 mph 82%
4am Mostly Cloudy 44º 6% E 3 mph 85%
5am Mostly Cloudy 44º 7% E 4 mph 85%
Fri
Feb 3
AM Light Rain 55º / 45º 63% E 8 mph 77%
Sat
Feb 4
Cloudy 58º / 50º 18% E 7 mph 76%
Sun
Feb 5
Showers 56º / 46º 58% WSW 15 mph 77%
Mon
Feb 6
Sunny 58º / 46º 6% NW 9 mph 66%
Tue
Feb 7
Mostly Sunny 57º / 46º 6% NNW 9 mph 64%

Weather Radar for Alcatraz Island, CA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Alcatraz Island, CA

Today
High : 53ºF
Variable winds less than 5 kt becoming W 6 to 11 kt in the afternoon. Sunny.
Tonight
Low : 45ºF
N wind around 6 kt becoming variable and less than 5 kt. Mostly clear.
Wednesday
High : 54ºF
N wind around 6 kt becoming variable and less than 5 kt in the afternoon. Partly sunny.
Wednesday Night
Low : 46ºF
WSW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy.
Thursday
High : 56ºF
SE wind 7 to 17 kt becoming S in the afternoon. Winds could gust as high as 23 kt. Rain likely after 4pm.
Thursday Night
Low : 50ºF
SSE wind 15 to 21 kt, with gusts as high as 29 kt. Rain likely, mainly before 4am.
Friday
High : 55ºF
SE wind 6 to 15 kt becoming NNW in the afternoon. A slight chance of rain before 10am.
Friday Night
Low : 46ºF
ENE wind around 6 kt. Partly cloudy.
Saturday
High : 56ºF
ENE wind 6 to 8 kt becoming SSE in the afternoon. Partly sunny.

NOAA Buoy Data Near Alcatraz Island, CA See Map

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    Wind Speed Forecast for Alcatraz Island, CA

    TuesdayWednesdayThursday
    Wind Speed (MPH) 474633576432
    6am10am2pm6pm10pm2am6am10am2pm6pm10pm2am
    MPH 474633576432
    DIR ENENENNEWNWNNEENENENENNEESE

    Current Weather Conditions In Alcatraz Island, CA

    As Of: 56 minutes ago

    • 42ºF
    • 39ºF
    • 4mph
    • 0º (ENE)
    • 4mph
    • Clear
    • 10mi
    • 30.19"
    • 54%
    • 0ºF

    The weather right now in Alcatraz Island, CA is Clear. The current temperature is 42°F, and the expected high and low for today, Tuesday, January 31, 2023, are 55° high temperature and 41°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the East Northeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 39° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 54 percent, and air pressure at 30.19 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).