July weather forecastSanta Monica, CA

July
Weather in July
July, like June, in Santa Monica, California, is a moderately hot summer month, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 63.1°F (17.3°C).Temperature
Santa Monica in July witnesses an average high-temperature of a still warm 78.6°F (25.9°C), indicating a slight variation from June's 74.1°F (23.4°C). Throughout July, Santa Monica witnesses a nighttime temperature average of 63.1°F (17.3°C).Humidity
In July, the average relative humidity is 66%.Rainfall
In July, the rain falls for 2.7 days. Throughout July, 0.16" (4mm) of precipitation is accumulated. In Santa Monica, during the entire year, the rain falls for 48.8 days and collects up to 7.52" (191mm) of precipitation.Ocean temperature
In Santa Monica, the average seawater temperature in July is 64.4°F (18°C).Note: In water with a temperature of 64.4°F (18°C), most people do not enjoy swimming. As the temperature descends from 69.8°F (21°C) to 59°F (15°C), breathing becomes increasingly difficult to control.
Daylight
In July, the average length of the day is 14h and 10min.On the first day of July, sunrise is at 5:46 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:55 pm PDT.
Sunshine
The months with the most sunshine in Santa Monica are July and August, with an average of 11.9h of sunshine.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 during July translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Santa Monica, CA
- Average high temperature in July: 78.6°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in July: 63.1°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in July
Santa Monica, CA
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in July
Santa Monica, CA
- Average wind speed in July: 5mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).
Average humidity in July
Santa Monica, CA
- Average humidity in July: 66%
The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (52%).
Average rainfall in July
Santa Monica, CA
- Average rainfall in July: 0.16"
The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in July
Santa Monica, CA
- Average rainfall days in July: 2.7 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).
Average sea temperature in July
Santa Monica, CA
- Average sea temperature in July: 64°F
The best months for swimming (with the highest average sea temperature) are August, September and October (66°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May and December (59°F).
Average daylight in July /
Average sunshine in July
Santa Monica, CA
- Average daylight in July: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in July: 11h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are February and December (Average sunshine: 6h and 36min).
Average sunshine days in July
Santa Monica, CA
- Average sunshine days in July: 26.5 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).
Average UV index in July
Santa Monica, CA
- Average UV index in July: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in July
Santa Monica, 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
Santa Monica, 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).





