July weather forecastLa Jolla, CA
July
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).Temperature
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. In the month of July, an average of 63.9°F (17.7°C) marks the low-temperature.Humidity
In La Jolla, the average relative humidity in July is 69%.Rainfall
In La Jolla, in July, during 4.7 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 57.9 rainfall days, and 7.48" (190mm) of precipitation is accumulated.Ocean temperature
In La Jolla, in July, the average water temperature is 67.1°F (19.5°C).Note: Swimming in 67.1°F (19.5°C) is not an enjoyable experience for most. Breathing becomes progressively more challenging as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In La Jolla, the average length of the day in July is 14h and 4min.On the first day of July in La Jolla, sunrise is at 5:44 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:48 pm PDT.
Sunshine
With an average of 12h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index are July through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In July, an average UV index of 6 transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
La Jolla, CA
- Average high temperature in July: 77.5°F
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).
- Average low temperature in July: 63.9°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 in July
La Jolla, CA
- Average pressure in July: 29.91"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 in July
La Jolla, CA
- Average wind speed in July: 5.3mph
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 in July
La Jolla, CA
- Average humidity in July: 69%
The months with the highest relative humidity are May and June (71%).
The month with the lowest relative humidity is November (57%).
Average rainfall in July
La Jolla, CA
- Average rainfall in July: 0.43"
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 in July
La Jolla, CA
- Average rainfall days in July: 4.7 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 in July
La Jolla, CA
- Average sea temperature in July: 67°F
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 in July /
Average sunshine in July
La Jolla, CA
- Average daylight in July: 14h and 6min
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 July: 12h and 0min
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 in July
La Jolla, CA
- Average sunshine days in July: 21.2 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 in July
La Jolla, CA
- Average UV index in July: 6
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 in July
La Jolla, CA
- Average cloud cover in July: 10
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 in July
La Jolla, CA
- Average visibility in July: 6mi
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).
