County in California

San Diego County Weather Forecast

San Diego County weather: 69°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

🌙 69°F now🕔 10:39 PM local📅 Best: April, May, June, July, August, September and October👥 3.3 million

Air quality and pollen in San Diego County

64
Moderate
Unusually sensitive people should limit long outdoor exertion.
PM2.512.7 µg/m³
PM1015.7 µg/m³
Ozone34 µg/m³
NO₂42.7 µg/m³
UV index0 · Low
Airborne hazeClear air

Air quality: Open-Meteo (CAMS). US AQI scale.

Health and safety today

Skin and UVNo protection needed for most skin types.
GeneralConditions are comfortable for most people, including children and older adults, with normal clothing.

Weather in San Diego County right now

🌙
69°F
Clear · feels like 70°F
Humidity70%
Wind7 mph NW
Gusts17 mph
UV index0 · Low
Cloud cover2%
Pressure1013 hPa
VisibilityVery poor · 0 mi
Air quality64 · Moderate
Sunrise7:01 AM
Sunset6:03 PM
Moon🌕 Full moon · 100%

Source: Open-Meteo. Updated 10:39 PM, Oct 26 local time.

See the San Diego County forecast by time range

San Diego County weather - more answers

Explore San Diego County

Every topic we hold for this place, and the same topic for the places around it.

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Frequently asked questions

Where is San Diego County?

San Diego County is a county in California. Its coordinates are 32.7157, -117.1611. It lies in North America.

What is the weather like in San Diego County right now?

It is currently 69°F (21°C) with clear. Humidity is 70% and wind is 7 mph.

When is the best time to visit San Diego County?

April, May, June, July, August, September and October offer the most comfortable conditions in San Diego County, which has a Mediterranean climate. January, February and March are usually the hardest months for outdoor plans.

What time zone is San Diego County in?

San Diego County observes America/Los_Angeles (UTC-07:00). The local time is 10:39 PM.

How many people live in San Diego County?

San Diego County has a population of approximately 3.3 million.

What is the nearest airport to San Diego County?

The closest airports are San Diego International Airport (SAN), 2 mi away, Los Angeles International Airport (LAX), 111 mi away and Harry Reid International Airport (LAS), 259 mi away.

What are the top things to do in San Diego County?

Popular options include Coronado Beach, Anza-Borrego Desert State Park, Disneyland Resort, Joshua Tree National Park, Santa Monica State Beach and Hollywood Sign.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
Forecast and observationsOpen-Meteo (ECMWF and national models).
Air quality and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Climate averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Weather Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated October 26, 2026 at 10:39 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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