Weather for Alviso, California
Current Weather
54.1°F
Conditions: Overcast
Humidity: 88%
Feels Like: 54.8°F
Wind: SSE 2.5 mph
Wind Gusts: 3.8 mph
Humidity: 88%
Feels Like: 54.8°F
Wind: SSE 2.5 mph
Wind Gusts: 3.8 mph
Pressure: 30.1 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast
Fri
H: 59°F
L: 54°F
Sat
H: 62°F
L: 56°F
Sun
H: 65°F
L: 53°F
Mon
H: 71°F
L: 54°F
Tue
H: 74°F
L: 55°F
Air Quality
PM2.5:
17.55 μg/m3
PM10:
20.05 μg/m3
Carbon Monoxide: 263.85 μg/m3
Nitrogen Dioxide: 29.85 μg/m3
Sulphur Dioxide: 4.75 μg/m3
Ozone: 30 μg/m3
Nitrogen Dioxide: 29.85 μg/m3
Sulphur Dioxide: 4.75 μg/m3
Ozone: 30 μg/m3
Astronomical
Sunrise: 7:25 AM
Sun Transit: 12:52 AM
Sunset: 6:19 PM
Daylight: 10 hrs 54 mins
Sun Transit: 12:52 AM
Sunset: 6:19 PM
Daylight: 10 hrs 54 mins
Moonrise: 10:40 AM
Moon Transit: 3:18 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%
Moon Transit: 3:18 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:48 PM - 5:18 PM
Minor Periods
7:25 PM - 8:55 PM10:10 AM - 11:40 AM
Action Rating: 2 out of 5
Beach Hazards Statement issued October 23 at 12:50PM PDT until October 27 at 3:00AM PDT by NWS San Francisco CA
Effective: Thu October 23, 2025, 12:50 PM
Expires: Fri October 24, 2025, 3:00 AM
* WHAT...A moderate to long period northwesterly swell will result in breaking waves of 15 to 20 feet, with the highest waves up to 25 feet in favored locations, and an increased risk for sneaker waves and rip currents. * WHERE...San Francisco, Coastal North Bay Including Point Reyes National Seashore, San Francisco Peninsula Coast, Northern Monterey Bay and Southern Monterey Bay and Big Sur Coast Counties. * WHEN...From late tonight through late Sunday night. * IMPACTS...Sneaker waves can unexpectedly run significantly farther up the beach than normal, including over rocks and jetties. Rip currents are typically more frequent and stronger in the vicinity of jetties, inlets, and piers. Swimmers should always swim near a lifeguard.
Remain out of the water to avoid hazardous swimming conditions.
Friday, October 24, 2025
Weather Forecast
Conditions: Cloudy
Average Temperature: 56.7°F
Average Humidity: 93%
Average Temperature: 56.7°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 0.9
Wind: 7.4 mph
UV Index: 0.9
Air Quality
AQI:
2 - Moderate
PM2.5:
16.95 μg/m3
PM10:
19.39 μg/m3
Carbon Monoxide: 239.29 μg/m3
Nitrogen Dioxide: 35.2 μg/m3
Sulphur Dioxide: 5.22 μg/m3
Ozone: 35.4 μg/m3
Nitrogen Dioxide: 35.2 μg/m3
Sulphur Dioxide: 5.22 μg/m3
Ozone: 35.4 μg/m3
Astronomical
Sunrise: 7:25 AM
Sun Transit: 12:52 AM
Sunset: 6:19 PM
Daylight: 10 hrs 54 mins
Sun Transit: 12:52 AM
Sunset: 6:19 PM
Daylight: 10 hrs 54 mins
Moonrise: 10:40 AM
Moon Transit: 3:18 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%
Moon Transit: 3:18 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:48 PM - 5:18 PM
Minor Periods
7:25 PM - 8:55 PM10:10 AM - 11:40 AM
Action Rating: 2 out of 5
Saturday, October 25, 2025
Weather Forecast
Conditions: Overcast
Average Temperature: 58.6°F
Average Humidity: 88%
Average Temperature: 58.6°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0.3
Wind: 9.2 mph
UV Index: 0.3
Air Quality
AQI:
1 - Good
PM2.5:
14.61 μg/m3
PM10:
17.21 μg/m3
Carbon Monoxide: 198.13 μg/m3
Nitrogen Dioxide: 28.57 μg/m3
Sulphur Dioxide: 3.96 μg/m3
Ozone: 35.32 μg/m3
Nitrogen Dioxide: 28.57 μg/m3
Sulphur Dioxide: 3.96 μg/m3
Ozone: 35.32 μg/m3
Astronomical
Sunrise: 7:26 AM
Sun Transit: 12:52 AM
Sunset: 6:18 PM
Daylight: 10 hrs 52 mins
Sun Transit: 12:52 AM
Sunset: 6:18 PM
Daylight: 10 hrs 52 mins
Moonrise: 11:38 AM
Moon Transit: 4:09 PM
Moonset: 8:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.2%
Moon Transit: 4:09 PM
Moonset: 8:41 PM
Moon Phase: Waxing Crescent
Moon Illumination: 12.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:39 PM - 6:09 PM
Minor Periods
8:11 PM - 9:41 PM11:08 AM - 12:38 AM
Action Rating: 3 out of 5
Sunday, October 26, 2025
Weather Forecast
Conditions: Overcast
Average Temperature: 59.2°F
Average Humidity: 74%
Average Temperature: 59.2°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 0.4
Wind: 6.9 mph
UV Index: 0.4
Air Quality
AQI:
2 - Moderate
PM2.5:
15.93 μg/m3
PM10:
18.76 μg/m3
Carbon Monoxide: 274.69 μg/m3
Nitrogen Dioxide: 34.85 μg/m3
Sulphur Dioxide: 5.23 μg/m3
Ozone: 38.88 μg/m3
Nitrogen Dioxide: 34.85 μg/m3
Sulphur Dioxide: 5.23 μg/m3
Ozone: 38.88 μg/m3
Astronomical
Sunrise: 7:27 AM
Sun Transit: 12:52 AM
Sunset: 6:16 PM
Daylight: 10 hrs 49 mins
Sun Transit: 12:52 AM
Sunset: 6:16 PM
Daylight: 10 hrs 49 mins
Moonrise: 12:31 AM
Moon Transit: 5:01 PM
Moonset: 9:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 20.5%
Moon Transit: 5:01 PM
Moonset: 9:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 20.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:31 PM - 7:01 PM
Minor Periods
9:03 PM - 10:33 PM12:01 AM - 1:31 PM
Action Rating: 2 out of 5
Monday, October 27, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 61.4°F
Average Humidity: 55%
Average Temperature: 61.4°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0.9
Wind: 9.2 mph
UV Index: 0.9
Air Quality
AQI:
1 - Good
PM2.5:
15.33 μg/m3
PM10:
17.72 μg/m3
Carbon Monoxide: 282.85 μg/m3
Nitrogen Dioxide: 45.17 μg/m3
Sulphur Dioxide: 4.57 μg/m3
Ozone: 21.46 μg/m3
Nitrogen Dioxide: 45.17 μg/m3
Sulphur Dioxide: 4.57 μg/m3
Ozone: 21.46 μg/m3
Astronomical
Sunrise: 7:28 AM
Sun Transit: 12:51 AM
Sunset: 6:15 PM
Daylight: 10 hrs 47 mins
Sun Transit: 12:51 AM
Sunset: 6:15 PM
Daylight: 10 hrs 47 mins
Moonrise: 1:18 PM
Moon Transit: 5:53 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 30.3%
Moon Transit: 5:53 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 30.3%
Best Times for Fishing or Hunting
Major Periods
12:32 AM - 3:02 AM5:23 PM - 7:53 PM
Minor Periods
10:03 PM - 11:33 PM12:48 AM - 2:18 PM
Action Rating: 2 out of 5
Tuesday, October 28, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 60.6°F
Average Humidity: 61%
Average Temperature: 60.6°F
Average Humidity: 61%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 0
Wind: 6.3 mph
UV Index: 0
Air Quality
AQI:
0 -
PM2.5:
0 μg/m3
PM10:
0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 7:29 AM
Sun Transit: 12:51 AM
Sunset: 6:14 PM
Daylight: 10 hrs 45 mins
Sun Transit: 12:51 AM
Sunset: 6:14 PM
Daylight: 10 hrs 45 mins
Moonrise: 1:59 PM
Moon Transit: 6:44 PM
Moonset: 11:36 PM
Moon Phase: First Quarter
Moon Illumination: 41.2%
Moon Transit: 6:44 PM
Moonset: 11:36 PM
Moon Phase: First Quarter
Moon Illumination: 41.2%
Best Times for Fishing or Hunting
Major Periods
1:24 AM - 3:54 AM6:14 PM - 8:44 PM
Minor Periods
12:00 AM - 12:00 AM1:29 PM - 2:59 PM
Action Rating: 3 out of 5
The times presented here are based upon the solunar theory, which is the idea that the movements of
fish and other animals are affected by the location of the sun and moon. The major periods are
believed to be the times of the greatest animal activity and occur when the moon is directly
overhead or underfoot (lunar transits). The minor periods also see increased activity and
occur when the moon is rising or setting. The strongest activity occurs during full or new moons,
and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.