Daily forecast
as
Last update: 03:34 local time / This forecast is based on the GFS model
Thursday, Oct 30
Wind
Weather
Waves
Tides
02h
3 kts
max 4 kts
16° C
1017 hpa
1.5 m
13 s
00:48
0.1
m
05h
4 kts
max 5 kts
15° C
1016 hpa
1.4 m
12 s
0.9
m
08h
3 kts
max 4 kts
14° C
1016 hpa
1.4 m
12 s
08:24
1.4
m
11h
5 kts
max 6 kts
17° C
1017 hpa
1.3 m
12 s
1.2
m
14h
8 kts
max 9 kts
17° C
1016 hpa
1.3 m
11 s
13:44
0.9
m
17h
8 kts
max 10 kts
16° C
1015 hpa
1.3 m
11 s
1.3
m
20h
4 kts
max 6 kts
14° C
1015 hpa
1.3 m
11 s
18:52
1.4
m
23h
5 kts
max 7 kts
14° C
1016 hpa
1.3 m
10 s
0.6
m
Friday, Oct 31
Wind
Weather
Waves
Tides
02h
3 kts
max 4 kts
14° C
1015 hpa
1.3 m
13 s
01:41
0.1
m
05h
1 kts
max 1 kts
14° C
1015 hpa
1.3 m
18 s
0.7
m
08h
1 kts
max 1 kts
14° C
1016 hpa
1.2 m
17 s
08:55
1.5
m
11h
1 kts
max 2 kts
17° C
1017 hpa
1.1 m
15 s
1.3
m
14h
4 kts
max 5 kts
19° C
1016 hpa
1.0 m
14 s
14:36
0.7
m
17h
6 kts
max 8 kts
18° C
1015 hpa
1.1 m
18 s
1.0
m
20h
4 kts
max 5 kts
16° C
1016 hpa
1.2 m
19 s
20:06
1.4
m
23h
3 kts
max 4 kts
16° C
1016 hpa
1.3 m
19 s
0.9
m
Saturday, Nov 01
Wind
Weather
Waves
Tides
02h
1 kts
max 2 kts
15° C
1017 hpa
1.2 m
19 s
02:29
0.2
m
05h
1 kts
max 2 kts
15° C
1017 hpa
1.1 m
19 s
0.6
m
08h
1 kts
max 2 kts
15° C
1018 hpa
1.2 m
18 s
09:24
1.6
m
11h
1 kts
max 1 kts
18° C
1019 hpa
1.4 m
19 s
1.4
m
14h
4 kts
max 5 kts
20° C
1017 hpa
1.6 m
18 s
15:21
0.5
m
17h
5 kts
max 8 kts
19° C
1017 hpa
1.8 m
18 s
0.7
m
20h
3 kts
max 5 kts
17° C
1017 hpa
2.0 m
17 s
21:15
1.5
m
23h
1 kts
max 3 kts
16° C
1018 hpa
1.9 m
16 s
1.2
m
Sunday, Nov 02
Wind
Weather
Waves
Tides
01h
1 kts
max 2 kts
16° C
1018 hpa
1.8 m
16 s
02:12
0.2
m
04h
2 kts
max 2 kts
16° C
1018 hpa
1.7 m
16 s
0.5
m
07h
2 kts
max 2 kts
16° C
1019 hpa
1.7 m
16 s
1.5
m
10h
3 kts
max 3 kts
19° C
1019 hpa
1.7 m
16 s
08:53
1.8
m
13h
3 kts
max 3 kts
21° C
1017 hpa
1.6 m
15 s
0.6
m
16h
7 kts
max 9 kts
19° C
1016 hpa
1.6 m
15 s
15:05
0.2
m
19h
5 kts
max 6 kts
17° C
1017 hpa
1.6 m
15 s
1.1
m
22h
4 kts
max 5 kts
16° C
1017 hpa
1.5 m
15 s
21:19
1.5
m
Monday, Nov 03
Wind
Weather
Waves
Tides
01h
4 kts
max 5 kts
15° C
1017 hpa
1.5 m
14 s
0.6
m
04h
3 kts
max 4 kts
14° C
1016 hpa
1.4 m
14 s
02:54
0.3
m
07h
3 kts
max 4 kts
14° C
1017 hpa
1.3 m
14 s
1.4
m
10h
5 kts
max 6 kts
16° C
1017 hpa
1.3 m
14 s
09:23
1.9
m
13h
6 kts
max 8 kts
18° C
1016 hpa
1.2 m
14 s
0.7
m
16h
9 kts
max 11 kts
17° C
1016 hpa
1.2 m
14 s
15:48
0.0
m
19h
6 kts
max 9 kts
15° C
1017 hpa
1.2 m
14 s
0.7
m
22h
4 kts
max 6 kts
14° C
1018 hpa
1.2 m
14 s
22:21
1.5
m
Tuesday, Nov 04
Wind
Weather
Waves
Tides
01h
3 kts
max 4 kts
14° C
1018 hpa
1.1 m
14 s
1.0
m
04h
2 kts
max 3 kts
14° C
1019 hpa
1.0 m
14 s
03:35
0.5
m
07h
1 kts
max 1 kts
15° C
1019 hpa
1.0 m
14 s
1.3
m
10h
2 kts
max 2 kts
17° C
1020 hpa
1.0 m
13 s
09:56
2.0
m
13h
5 kts
max 7 kts
18° C
1019 hpa
0.9 m
13 s
1.0
m
16h
6 kts
max 8 kts
18° C
1018 hpa
1.0 m
13 s
16:33
-0.2
m
19h
2 kts
max 3 kts
16° C
1019 hpa
1.0 m
13 s
0.3
m
22h
4 kts
max 4 kts
16° C
1019 hpa
1.0 m
13 s
23:21
1.6
m
Wednesday, Nov 05
Wind
Weather
Waves
Tides
01h
3 kts
max 3 kts
16° C
1018 hpa
1.0 m
13 s
1.3
m
04h
2 kts
max 2 kts
15° C
1018 hpa
1.1 m
12 s
04:18
0.6
m
07h
3 kts
max 3 kts
15° C
1018 hpa
1.1 m
12 s
1.2
m
10h
5 kts
max 9 kts
18° C
1018 hpa
1.4 m
11 s
10:32
2.1
m
13h
11 kts
max 18 kts
19° C
1016 hpa
1.6 m
10 s
1.4
m
16h
16 kts
max 29 kts
18° C
1016 hpa
1.8 m
10 s
17:19
-0.4
m
19h
21 kts
max 35 kts
18° C
1015 hpa
2.0 m
10 s
-0.1
m
22h
19 kts
max 32 kts
8.74 mm
16° C
1017 hpa
2.2 m
11 s
1.1
m
Thursday, Nov 06
Wind
Weather
Waves
Tides
01h
11 kts
max 19 kts
0.71 mm
16° C
1018 hpa
2.3 m
11 s
00:22
1.6
m
04h
7 kts
max 10 kts
0.44 mm
16° C
1020 hpa
2.3 m
12 s
05:02
0.8
m
07h
3 kts
max 4 kts
0.52 mm
16° C
1021 hpa
2.4 m
13 s
1.1
m
10h
5 kts
max 6 kts
17° C
1022 hpa
2.5 m
13 s
11:11
2.1
m
13h
8 kts
max 9 kts
18° C
1021 hpa
2.5 m
14 s
1.8
m
16h
7 kts
max 8 kts
18° C
1021 hpa
2.5 m
15 s
0.1
m
19h
4 kts
max 6 kts
16° C
1022 hpa
2.5 m
15 s
18:08
-0.5
m
22h
5 kts
max 7 kts
15° C
1022 hpa
2.4 m
15 s
0.7
m
Friday, Nov 07
Wind
Weather
Waves
Tides
01h
4 kts
max 6 kts
15° C
1021 hpa
2.2 m
14 s
01:22
1.5
m
04h
4 kts
max 6 kts
14° C
1021 hpa
2.0 m
14 s
1.1
m
07h
4 kts
max 4 kts
14° C
1020 hpa
1.9 m
14 s
05:50
0.9
m
10h
4 kts
max 6 kts
16° C
1020 hpa
1.8 m
13 s
1.8
m
13h
4 kts
max 5 kts
18° C
1018 hpa
1.6 m
13 s
11:55
2.1
m
16h
5 kts
max 6 kts
18° C
1016 hpa
1.5 m
13 s
0.5
m
19h
3 kts
max 4 kts
16° C
1016 hpa
1.4 m
13 s
18:59
-0.4
m
22h
1 kts
max 2 kts
16° C
1016 hpa
1.4 m
13 s
0.3
m
Saturday, Nov 08
Wind
Weather
Waves
Tides
01h
1 kts
max 2 kts
15° C
1016 hpa
1.3 m
13 s
02:23
1.5
m
04h
0 kts
max 1 kts
14° C
1016 hpa
1.3 m
13 s
1.3
m
07h
1 kts
max 1 kts
14° C
1017 hpa
1.3 m
14 s
06:43
1.0
m
10h
1 kts
max 1 kts
17° C
1018 hpa
1.3 m
16 s
1.6
m
13h
4 kts
max 5 kts
19° C
1017 hpa
1.4 m
15 s
12:44
2.0
m
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Additional information
General
This is the wind, wave and weather forecast for Alcatraz Island, San Francisco Bay in California, United States of America. Windfinder specializes in wind, waves, tides and weather reports & forecasts for wind related sports like kitesurfing, windsurfing, surfing, sailing, fishing or paragliding.
Forecast
This forecast is based on the GFS model. Forecasts are available worldwide. The horizontal resolution is about 13 km. Forecasts are computed 4 times a day, at about 10:00 PM, 4:00 AM, 10:00 AM and 4:00 PM Pacific Daylight Time. Predictions are available in time steps of 3 hours for up to 10 days into the future. The arrows point in the direction in which the wind is blowing.Check the wind forecast for Alcatraz Island, San Francisco Bay when you search for the best travel destinations for your kiteboarding, windsurfing or sailing vacations in United States of America. Or use our wind forecast to find the wind speed today in Alcatraz Island, San Francisco Bay or to have a look at the wind direction tomorrow at Alcatraz Island, San Francisco Bay.
Severe Weather Warnings
When a severe weather warning or advisory is provided by the local meteorological institute, we display it as a banner above the wind forecast.The weather warning, for example a high wind warning, can help you prepare for dangerous weather conditions and avoid weather-related risks. The color scale indicates the intensity of the predicted weather event. For more details click or tap on the warning. General information about severe weather warnings can be found in our help section.
Please be aware that severe weather may occur without a prior severe weather warning being reported.
Units
We use knots and degrees Celsius as our default units. These units are often used by sailors, kiters, surfers, windsurfers and paragliders. Use website settings to switch between units and 7 different languages at any time. For converting between wind speed units such as knots, km/h (kilometers per hour), m/s (meters per second), and mph (miles per hour) use our wind speed calculator.