Weather in San Diego Today
Current temperature in San Diego: 23°C (73°F). Sunny. Today's high 30°C (86°F), low 22°C (72°F).
Today's Daylight Forecast
Moon & Islamic Calendar
High UV apply sunscreen before heading out. A hat or sun umbrella is recommended during peak hours.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 29°C.
15 of the last 19 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Health & Activity Advice
UV index is 8 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.
Nearby Regional Outlook
San Diego Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in San Diego?
The hottest month in San Diego is typically August, with daytime highs averaging around 25.5°C (78°F), based on 10 years of historical weather data. Overnight lows during this period average near 18.9°C (66°F).
What is the coldest month in San Diego?
The coldest month in San Diego is typically January, with overnight lows averaging around 8.7°C (48°F) and daytime highs near 17.5°C (64°F), based on 10 years of historical weather data.
Does San Diego have a rainy season?
San Diego doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. January is the wettest month on average (about 74 mm), while June is the driest (about 2 mm).
What's the best time of year to visit San Diego?
The best time to visit San Diego is typically June to July, when daytime highs average a comfortable 23.3°C (74°F). Rainfall during this window averages around 3 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is San Diego's air quality safe right now?
As of the latest reading, San Diego's air quality index (AQI) is 34, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.