INSTRUMENT / SEA TEMPERATURE
La Jolla Cove Water Temperature
Updated Sun 15:57 (America/New_York)
USA · Forecast updated Nov 8, 2026, 15:57 UTC
Current Sea Temperature
23.7°C
74.7°F
Mild water
Valid Nov 8, 2026, 15:57 (America/New_York). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
6.3°C above
The typical November average is 17.4°C (63.3°F) from the historical baseline.
Recent trend
Cooling by 0.4°C
Seven-day average: 24.1°C, versus 24.5°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 or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for La Jolla Cove, typical monthly averages range from about 14.7°C (58.5°F) in February to 21.7°C (71.1°F) in August.
Over the past 30 days, the average sea temperature in La Jolla Cove has been 23.4°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near La Jolla Cove, calculated from hourly observations for 2022–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 14.0–16.0°C | 15.0°C / 59.0°F |
| February | 14.0–15.5°C | 14.7°C / 58.5°F |
| March | 14.1–15.9°C | 15.0°C / 59.0°F |
| April | 15.1–16.2°C | 15.8°C / 60.4°F |
| May | 17.2–18.0°C | 17.7°C / 63.9°F |
| June | 17.9–19.9°C | 19.2°C / 66.6°F |
| July | 20.6–22.0°C | 21.2°C / 70.2°F |
| August | 21.1–22.1°C | 21.7°C / 71.1°F |
| September | 20.5–21.9°C | 21.4°C / 70.5°F |
| October | 18.8–19.2°C | 18.9°C / 66.0°F |
| November | 16.6–18.0°C | 17.4°C / 63.3°F |
| December | 14.9–17.3°C | 16.1°C / 61.0°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (32.88, -117.29). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2022–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
La Jolla Cove in January
Typical January water temperature near La Jolla Cove is 15.0°C (59.0°F), with yearly monthly means from 14.0–16.0°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: December 16.1°C · February 14.7°C.
Explore La Jolla Cove sea temperature in January, including swim comfort and month comparisons →
La Jolla Cove in February
Typical February water temperature near La Jolla Cove is 14.7°C (58.5°F), with yearly monthly means from 14.0–15.5°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: January 15.0°C · March 15.0°C.
Explore La Jolla Cove sea temperature in February, including swim comfort and month comparisons →
La Jolla Cove in March
Typical March water temperature near La Jolla Cove is 15.0°C (59.0°F), with yearly monthly means from 14.1–15.9°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: February 14.7°C · April 15.8°C.
Explore La Jolla Cove sea temperature in March, including swim comfort and month comparisons →
La Jolla Cove in April
Typical April water temperature near La Jolla Cove is 15.8°C (60.4°F), with yearly monthly means from 15.1–16.2°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: March 15.0°C · May 17.7°C.
Explore La Jolla Cove sea temperature in April, including swim comfort and month comparisons →
La Jolla Cove in May
Typical May water temperature near La Jolla Cove is 17.7°C (63.9°F), with yearly monthly means from 17.2–18.0°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: April 15.8°C · June 19.2°C.
Explore La Jolla Cove sea temperature in May, including swim comfort and month comparisons →
La Jolla Cove in June
Typical June water temperature near La Jolla Cove is 19.2°C (66.6°F), with yearly monthly means from 17.9–19.9°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: May 17.7°C · July 21.2°C.
Explore La Jolla Cove sea temperature in June, including swim comfort and month comparisons →
La Jolla Cove in July
Typical July water temperature near La Jolla Cove is 21.2°C (70.2°F), with yearly monthly means from 20.6–22.0°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: June 19.2°C · August 21.7°C.
Explore La Jolla Cove sea temperature in July, including swim comfort and month comparisons →
La Jolla Cove in August
Typical August water temperature near La Jolla Cove is 21.7°C (71.1°F), with yearly monthly means from 21.1–22.1°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: July 21.2°C · September 21.4°C.
Explore La Jolla Cove sea temperature in August, including swim comfort and month comparisons →
La Jolla Cove in September
Typical September water temperature near La Jolla Cove is 21.4°C (70.5°F), with yearly monthly means from 20.5–21.9°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: August 21.7°C · October 18.9°C.
Explore La Jolla Cove sea temperature in September, including swim comfort and month comparisons →
La Jolla Cove in October
Typical October water temperature near La Jolla Cove is 18.9°C (66.0°F), with yearly monthly means from 18.8–19.2°C.
Swimming and snorkeling: cool water. A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Adjacent months: September 21.4°C · November 17.4°C.
Explore La Jolla Cove sea temperature in October, including swim comfort and month comparisons →
La Jolla Cove in November
Typical November water temperature near La Jolla Cove is 17.4°C (63.3°F), with yearly monthly means from 16.6–18.0°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: October 18.9°C · December 16.1°C.
Explore La Jolla Cove sea temperature in November, including swim comfort and month comparisons →
La Jolla Cove in December
Typical December water temperature near La Jolla Cove is 16.1°C (61.0°F), with yearly monthly means from 14.9–17.3°C.
Swimming and snorkeling: cold water. Use a full 3-5 mm wetsuit and keep the session within your cold-water experience.
Adjacent months: November 17.4°C · January 15.0°C.
Explore La Jolla Cove sea temperature in December, including swim comfort and month comparisons →
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| 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 | 23.2°C / 73.7°F | 24.8°C / 76.6°F |
| October | 22.0°C / 71.6°F | 23.2°C / 73.7°F | 24.9°C / 76.8°F |
| November | 23.6°C / 74.5°F | 24.0°C / 75.3°F | 25.0°C / 77.0°F |
Partial coverage: 6 calendar months with records. Profile calculated from 3863 hourly forecast records across 6 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 water temperature in La Jolla Cove today?
The current sea surface temperature near La Jolla Cove is 23.7°C (74.7°F). Over the last 30 days, the average has been 23.4°C.
When is the water warmest in La Jolla Cove?
The water is typically warmest in August, at around 21.7°C (71.1°F) in the 2022–2025 historical baseline.
When is the water coldest in La Jolla Cove?
The water is typically coldest in February, at around 14.7°C (58.5°F) in the same historical baseline. A wetsuit is usually recommended during this period.
Can you swim in La Jolla Cove today?
At 23.7°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 →