La Jolla Cove Sea Temperature
Updated Sat 17:49 (America/New_York)
USA · Forecast updated Sep 5, 2026, 17:49 UTC
Current Sea Temperature
22.2°C
72.0°F
Mild water
Versus this month's average
0.7°C below
The September average in our archive is 22.9°C (73.2°F).
Recent trend
Holding fairly steady
Seven-day average: 23.7°C, versus 23.5°C in the prior seven days.
What to wear
Mild water
A rash guard is useful; cold-sensitive snorkelers may prefer a shorty wetsuit.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.
Sea Surface Temperature Over the Year
In the data collected for La Jolla Cove, monthly averages range from about 20.7°C (69.2°F) in June to 23.7°C (74.7°F) in August.
Over the past 30 days, the average sea temperature in La Jolla Cove has been 23.8°C.
Monthly Water Temperature Averages
Northern Hemisphere. Summer is generally June–August; winter is December–February.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 19.3°C / 66.7°F | 20.7°C / 69.2°F | 22.2°C / 72.0°F |
| July | 20.0°C / 68.0°F | 21.9°C / 71.5°F | 24.1°C / 75.4°F |
| August | 22.1°C / 71.8°F | 23.7°C / 74.7°F | 25.2°C / 77.4°F |
| September | 21.2°C / 70.2°F | 22.9°C / 73.2°F | 24.8°C / 76.6°F |
Profile calculated from 2329 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at La Jolla Cove
San Diego marine reserve with garibaldi, leopard sharks and a kelp forest.
- Area
- California
La Jolla Cove Water Temperature: Common Questions
What is the sea temperature in La Jolla Cove today?
The current sea surface temperature in La Jolla Cove is 22.2°C. Over the last 30 days, the average has been 23.8°C.
When is the water warmest in La Jolla Cove?
The warmest monthly average in the La Jolla Cove archive is August, at around 23.7°C (74.7°F).
When is the water coldest in La Jolla Cove?
The coldest monthly average in the archive is June, at around 20.7°C (69.2°F).
Can you swim in La Jolla Cove today?
At 22.2°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for La Jolla Cove.
View Snorkel Forecast →