Weather Forecast for La Jolla

California, United States of America

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Fog

Current Weather - La Jolla: 18°C

California, United States of America

Fog

Feels like 18°C

Wind

4 km/h NNE

Humidity

90%

Pressure

1014 mb

UV Index

0

Visibility

16 km

Partly Cloudy

Partly Cloudy

Saturday, March 21, 2026

High

25°C

Low

15°C

Rain Chance

0%

Hourly Forecast

Cloudy 20°C
10:00
Sunny 21°C
11:00
Sunny 22°C
12:00
Sunny 22°C
13:00
Sunny 24°C
14:00
Partly Cloudy 24°C
15:00
Partly Cloudy 23°C
16:00
Partly Cloudy 22°C
17:00
Partly Cloudy 21°C
18:00
Partly Cloudy 20°C
19:00
Partly Cloudy 19°C
20:00
Partly Cloudy 19°C
21:00
Partly Cloudy 20°C
22:00
Clear 18°C
23:00
Mar 22

Day Statistics

Maximum Wind

17 km/h

Humidity

83%

Precipitation

0 mm

UV Index

2

Visibility

10 km

Rain Chance

0%

Snow Chance

0%

Sun & Moon

Sunrise

06:51 AM

Sunset

07:01 PM

Moonrise

08:12 AM

Moonset

10:24 PM

Moon Phase

Waxing Crescent

Moon Illumination

5%

Air Quality

PM2.5

27.4

μg/m³

PM10

30.6

μg/m³

NO₂

59

μg/m³

O₃

32.6

μg/m³

SO₂

8.2

μg/m³

CO

285.1

μg/m³

US EPA Index: 2 GB DEFRA Index: 3

Weather Alerts

Extreme Heat Warning issued March 20 at 11:21AM PDT until March 21 at 8:00PM PDT by NWS San Diego CA

Coachella Valley; San Diego County Deserts Mar 20, 11:21 AM - Mar 20, 08:00 PM
Severity: Severe Urgency: Expected

* WHAT...Dangerously hot conditions with temperatures 101 to 108 degrees. * WHERE...Coachella Valley and San Diego County Deserts. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight low temperatures will only fall into the 70s and lower 80s reducing relief from the heat.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Event: Extreme Heat Warning Certainty: Likely Category: Met

Heat Advisory issued March 20 at 11:21AM PDT until March 20 at 8:00PM PDT by NWS San Diego CA

Santa Ana Mountains and Foothills Mar 20, 11:21 AM - Mar 20, 08:00 PM
Severity: Moderate Urgency: Expected

* WHAT...High temperatures 80 to 92. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Event: Heat Advisory Certainty: Likely Category: Met

When to visit La Jolla?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July August

January

☀️
18°C
💧
8 Days of rain
❄️
No snowfall
🥶 Coldest month

February

☀️
18°C
💧
10 Days of rain
❄️
No snowfall
🌧 Wettest month,

March

☀️
18°C
💧
6 Days of rain
❄️
No snowfall

April

☀️
19°C
💧
3 Days of rain
❄️
No snowfall

May

☀️
20°C
💧
1 Days of rain
❄️
No snowfall

June

☀️
22°C
💧
0 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
24°C
💧
0 Days of rain
❄️
No snowfall
Best time to visit

August

☀️
25°C
💧
0 Days of rain
❄️
No snowfall
Best time to visit
🔥 Hottest month
🌵 Driest month

September

☀️
25°C
💧
1 Days of rain
❄️
No snowfall

October

☀️
23°C
💧
2 Days of rain
❄️
No snowfall

November

☀️
21°C
💧
3 Days of rain
❄️
No snowfall

December

☀️
18°C
💧
6 Days of rain
❄️
No snowfall