Today | Weather | Monday, August 25, 2025

Weather in San Jose, California

05:57 PM
Now
Cloudy WeatherCloudy weather, overcast skies with clouds.
75° F
Feels Like 73°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 11
Humidity 60 %
Today
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 81°
Night 61°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Other:

Increasing amounts of bright sunlight.

San Jose Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (August 25, 2024)

Sunny WeatherSunny weather, clear skies and sunny weather.

Day

86°

Night

59°

Wind

7 mph

UV Index

8

Precipitation

0

Air quality in San Jose

NOW
56 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 12.02 µg/m³
PM10 14.75 µg/m³
O₃ 50.89 ppb
NO₂ 3.06 ppb
SO₂ 0.88 ppb
CO 141.56 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.