City in California

San Diego Weather Forecast

San Diego weather: 79°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

☀️ 79°F now🕔 1:39 PM local📅 Best: April, May, June, July, August, September and October👥 1.4 million

Risk assessment for San Diego

Derived from the current forecast window - not an official warning.

Fire weather10

16 dry days, 5 days above 90°F and humidity at 60%. Hot, dry and windy together is what drives fire spread.

Airborne particulates1.1

Clear air overhead right now. Aerosol readings cannot separate wildfire smoke from dust, so treat this as a haze signal, not a fire confirmation.

Air quality and pollen in San Diego

73
Moderate
Unusually sensitive people should limit long outdoor exertion.
PM2.520.2 µg/m³
PM1022.5 µg/m³
Ozone21 µg/m³
NO₂32.5 µg/m³
UV index3 · 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.

Active alerts for San Diego

⚠️Extreme Heat Warning · Severe
Extreme Heat Warning issued October 1 at 8:59PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
Issued by NWS San Diego CA
⚠️Sat, Oct 3: extreme heat, 102°F (39°C). Hydrate and avoid midday sun.
⚠️Sun, Oct 4: extreme heat, 96°F (35°C). Hydrate and avoid midday sun.
⚠️Mon, Oct 5: extreme heat, 95°F (35°C). Hydrate and avoid midday sun.

See the San Diego forecast by time range

San Diego weather - more answers

Explore San Diego

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

Weather for related places

Frequently asked questions

Where is San Diego?

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

What is the weather like in San Diego right now?

It is currently 79°F (26°C) with clear sky. Humidity is 60% and wind is 1 mph.

When is the best time to visit San Diego?

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

What time zone is San Diego in?

San Diego observes America/Los_Angeles (UTC-07:00). The local time is 1:39 PM.

How many people live in San Diego?

San Diego has a population of approximately 1.4 million.

What is the nearest airport to San Diego?

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?

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

What places are in San Diego?

San Diego covers 2 places in this atlas, including San Diego International Airport and Coronado Beach.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (cities-us) - 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 2, 2026 at 1:39 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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