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United StatesThe weather in August in San Diego
It's warm in August in San Diego with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 27°C. At night, you can expect temperatures between 20°C and 21°C.
Looking for great weather? August is a good time to be in San Diego. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for San Diego, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 32°C in 2015, San Diego reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 20°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 16°C to a highest value of 26°C.
Water temperature
The water temperature at San Diego is 22°C this month. Pleasant for a swim.
Rainfall amount
According to weather history, there is only 5,4 mm of precipitation in August. The wind speed is around 4 Bft, mostly coming from the West.
Daily weather in August for San Diego
Click on any day in August to get detailed info about the usual weather on that day in San Diego. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| San Diego | New York | |
|---|---|---|
| Average temperature | 26°C | 30°C |
| Max. temperature | 27°C | 31°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 5,4 mm | 79 mm |
| Rainy days | 1 day | 13 days |
Start of August
The month of August starts in San Diego with warm temps, averaging around 26°C during the day and nights around 21°C.
Mid August
By mid-August, daytime temps stay steady at around 26°C, with nights around 21°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of August
By the end of August, the average daytime temperature in San Diego is around 27°C, while nighttime temps are about 21°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of San Diego for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in San Diego, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in San Diego
Temperature in August in San Diego over the years
Precipitation charts
These charts show the average amount of precipitation in August in San Diego, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in San Diego
Total precipitation in August in San Diego over the years
Daily UV index in August in San Diego
This chart shows the average daily UV index in August in San Diego, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in San Diego
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Average weather in San Diego by month
Click on a month below to see detailed weather info for San Diego. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.