Weather Alerts
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% |
-
Buoy Data
For Alcatraz Island, CA -
Wind Forecast
In Alcatraz Island, CA -
Radar
In Alcatraz Island, CA -
Marine Forecast
In Alcatraz Island, CA
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.
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.
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.
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.
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.
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.
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.
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.
ENE wind around 6 kt. Partly cloudy.
Saturday
High : 56ºF
ENE wind 6 to 8 kt becoming SSE in the afternoon. Partly sunny.
ENE wind 6 to 8 kt becoming SSE in the afternoon. Partly sunny.
NOAA Buoy Data Near Alcatraz Island, CA See Map
Loading Map...
Loading Buoy Data...
Wind Speed Forecast for Alcatraz Island, CA
| Tuesday | Wednesday | Thursday | ||||||||||
| Wind Speed (MPH) | 4 | 7 | 4 | 6 | 3 | 3 | 5 | 7 | 6 | 4 | 3 | 2 |
| 6am | 10am | 2pm | 6pm | 10pm | 2am | 6am | 10am | 2pm | 6pm | 10pm | 2am | |
| MPH | 4 | 7 | 4 | 6 | 3 | 3 | 5 | 7 | 6 | 4 | 3 | 2 |
| DIR | ENE | NE | NNE | WNW | NNE | E | NE | NE | NE | NNE | E | SE |
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).
