Climate and monthly weather forecastLa Jolla, CA
Climate and monthly weather forecast
Weather in January
January, like December, in La Jolla, California, is another comfortable winter month, with an average temperature fluctuating between 64.9°F (18.3°C) and 51.4°F (10.8°C). The average high-temperature for January is a still comfortable 64.9°F (18.3°C), closely aligning with the temperature of the preceding month. Weather in January »Weather in February
February, the last month of the winter in La Jolla, is also an enjoyable month, with an average temperature fluctuating between 50.2°F (10.1°C) and 64.2°F (17.9°C). With the onset of February, La Jolla's average high-temperature clocks in at a still comfortable 64.2°F (17.9°C), showing a minor fluctuation from the previous month. Weather in February »Weather in March
March, the first month of the spring in La Jolla, is still a comfortable month, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 51.6°F (10.9°C). With March's advent, La Jolla sees an average high-temperature of a still comfortable 65.1°F (18.4°C), subtly shifted from February's 64.2°F (17.9°C). Weather in March »Weather in April
April, the same as March, is another comfortable spring month in La Jolla, California, with an average temperature fluctuating between 67.5°F (19.7°C) and 53.2°F (11.8°C). The dawn of April sees an average high-temperature of a still enjoyable 67.5°F (19.7°C), subtly contrasting with March's 65.1°F (18.4°C). Weather in April »Weather in May
May, the last month of the spring in La Jolla, is an agreeable month, with an average temperature varying between 68.7°F (20.4°C) and 55.6°F (13.1°C). La Jolla's shift into May is marked by a subtle change to a pleasant 68.7°F (20.4°C) from April's 67.5°F (19.7°C) in temperature. Weather in May »Weather in June
June, the first month of the summer in La Jolla, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 58.6°F (14.8°C). In the transition from May to June, La Jolla reports an average high-temperature of a still pleasant 72.5°F (22.5°C), indicating a close resemblance to the prior month. Weather in June »Weather in July
July in La Jolla, California, is a warm summer month, with an average temperature varying between 63.9°F (17.7°C) and 77.5°F (25.3°C). The advent of July brings an average high-temperature of a moderately hot 77.5°F (25.3°C), almost identical to the preceding month. Weather in July »Weather in August
August, the last month of the summer in La Jolla, is another warm month, with an average temperature fluctuating between 79.3°F (26.3°C) and 65.8°F (18.8°C). The warmest month is August, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 65.8°F (18.8°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in La Jolla, California, with an average temperature varying between 64.4°F (18°C) and 78.6°F (25.9°C). August's transformation into September witnesses an average high-temperature of a still moderately hot 78.6°F (25.9°C), noting a minor change from the preceding month. Weather in September »Weather in October
October, the same as September, is another warm autumn month in La Jolla, California, with an average temperature varying between 74.7°F (23.7°C) and 60.8°F (16°C). La Jolla signifies an average high-temperature of a still warm 74.7°F (23.7°C) in October, closely mirroring the 78.6°F (25.9°C) of September. Weather in October »Weather in November
The last month of the autumn, November, is another pleasant month in La Jolla, California, with an average temperature varying between 56.1°F (13.4°C) and 69.8°F (21°C). La Jolla experiences a transition to an agreeable 69.8°F (21°C) in average high-temperatures with the arrival of November, not greatly differing from October's 74.7°F (23.7°C). Weather in November »Weather in December
December, the first month of the winter in La Jolla, is also an enjoyable month, with an average temperature varying between 63.5°F (17.5°C) and 51.3°F (10.7°C). Temperature readings reach their annual highs in December, averaging 63.5°F (17.5°C) and a minimum average of 51.3°F (10.7°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
La Jolla, CA
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (63.5°F).
The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (50.2°F).
Average pressure
La Jolla, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.88"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed
La Jolla, CA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5.6mph - Average wind speed in March:
5.6mph - Average wind speed in April:
6mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.2mph - Average wind speed in September:
5mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).
Average humidity
La Jolla, CA
The months with the highest relative humidity are May and June (71%).
The month with the lowest relative humidity is November (57%).
Average rainfall
La Jolla, CA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.46" - Average rainfall in March:
0.71" - Average rainfall in April:
0.59" - Average rainfall in May:
0.31" - Average rainfall in June:
0.12"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.31" - Average rainfall in September:
0.31" - Average rainfall in October:
0.28" - Average rainfall in November:
0.75" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is February (1.46").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days
La Jolla, CA
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
6.1 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
3.6 days - Average rainfall days in September:
4.2 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (2.2 days).
Average sea temperature
La Jolla, CA
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight / Average sunshine
La Jolla, CA
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 54min - Average sunshine in February:
6h and 54min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 54min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 18min - Average sunshine in October:
8h and 48min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days
La Jolla, CA
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
20.2 days - Average sunshine days in March:
22.7 days - Average sunshine days in April:
21.9 days - Average sunshine days in May:
21.9 days - Average sunshine days in June:
21.8 days
- Average sunshine days in July:
21.2 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
22.4 days - Average sunshine days in October:
23.9 days - Average sunshine days in November:
23.8 days - Average sunshine days in December:
22.8 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is February (20.2 days).
Average UV index
La Jolla, CA
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
La Jolla, CA
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility
La Jolla, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





