Today | Weather | Wednesday, July 15, 2026

Active Weather Warnings

Weather in San Diego, California

03:02 PM

Now

81° F

Feels Like 86°

Precipitation 0 %

Wind 8 mph

UV Index (0 - 11+) 8

Humidity 50 %

Today

Day 82°

Night 66°

Precipitation 1 %

Wind 6 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.

San Diego Weather Forecast Updated

Last updated on July 15, 2026 at 1:59 PM

Weather Forecast History

Last Year's Weather on This Day (July 15, 2025)

Day

73°

Night

63°

Wind

7 mph

UV Index

Precipitation

0 %

Air Quality in San Diego

NOW

39 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 9.44 µg/m³

PM₁₀ 25.71 µg/m³

O₃ 0.042 ppm

NO₂ 0.1 ppb

SO₂ 0.3 ppb

CO 0.07 ppm

NH₃ 0 µg/m³

NO 0.04 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 9.44 µg/m³

PM₁₀ – 25.71 µg/m³

O₃ – 81.58 µg/m³

NO₂ – 0.2 µg/m³

SO₂ – 0.77 µg/m³

CO – 75.71 µg/m³

NH₃ – 0 µg/m³

NO – 0.04 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for San Diego

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued July 13 at 3:16AM PDT until July 16 at 8:00PM PDT by NWS San Diego CA

Jul 14, 10:00 AM → Jul 16, 8:00 PM

WHAT: Hot and humid conditions with elevated overnight
temperatures. Temperatures will be in the 90s in the mountains
below 6000 feet, 95 to 107 or more for inland valleys, and 80s
near the coast.

WHERE: Orange County Coastal Areas, Orange County Inland Areas,
Riverside County Mountains, San Bernardino County Mountains, San
Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Coastal Areas, San Diego County Mountains, San Diego
County Valleys, San Gorgonio Pass near Banning, and Santa Ana
Mountains and Foothills.

WHEN: From Tuesday morning through Thursday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Updated: Jul 13, 9:36 AM Source: NWS Alert

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued July 15 at 11:33AM PDT until July 16 at 12:00AM PDT by NWS San Diego CA

Jul 15, 11:33 AM → Jul 16, 12:00 AM

WHAT: Minor coastal flooding due to high astronomical tides of
7 feet and surf to 3 to 5 feet.

WHERE: San Diego County coastal areas and Orange County
coastal areas.

WHEN: Through this evening.

IMPACTS: Areas of flooding from tidal overflow in low lying
areas, boardwalks, beach parking lots, and beach adjacent
streets. Beach erosion. Highest impacts expected during high
tides in the evening.

ADDITIONAL DETAILS: A 2 foot south swell (from 190 degrees)
at 13-15 seconds will lead to surf 3-5 feet at south-facing
beaches. Elsewhere, surf of 2-4 feet is expected.

+ Read More

Remain out of the water to avoid hazardous swimming conditions.

Updated: Jul 15, 1:59 PM Source: NWS Alert

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 15 at 11:42AM PDT until July 16 at 8:00PM PDT by NWS San Diego CA

Jul 15, 11:42 AM → Jul 16, 8:00 PM

WHAT: Warm and humid conditions with elevated overnight
temperatures in the upper 60s. High temperatures near 80 at the
beaches to near 90 further inland expected.

WHERE: Orange County Coastal Areas and San Diego County Coastal
Areas.

WHEN: Until 8 PM PDT Thursday.

IMPACTS: Hot temperatures may cause heat illnesses.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Updated: Jul 15, 1:59 PM Source: NWS Alert

Weather in San Diego, California

Warning: Extreme UV Index Today: 11

San Diego Weather Forecast Updated

Day

Night

Wind

UV Index

Precipitation

Air Quality in San Diego

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for San Diego

Extreme Heat Watch

Beach Hazards Statement

Heat Advisory

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