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Today | Weather | Sunday, August 31, 2025
Beach Hazards Statement (Potential hazards at beaches, such as dangerous currents, high surf, or unexpected waves.)

Weather in San Diego, California

01:06 AM
Now
Cloudy NightCloudy night, overcast skies at night with no rain.
68° F
Feels Like 66°
Precipitation 0 %
Wind 5 mph
Humidity 90 %
Today
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 64°
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:

Clouds giving way to sun with a twist.

San Diego Weather Forecast Updated

59 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (August 31, 2024)

Cloudy WeatherCloudy weather, overcast skies with clouds.

Day

75°

Night

66°

Wind

7 mph

UV Index

8

Precipitation

1

Air quality in San Diego

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

Pollutant Concentrations:

PM2.5 20.38 µg/m³
PM10 31.76 µg/m³
O₃ 18.93 ppb
NO₂ 35.16 ppb
SO₂ 1.32 ppb
CO 289.29 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.

View Hourly Air Quality Forecast