Weather in San Diego in August 2024
- August is usually the wettest month of the year in San Diego;
Average weather
Average temperature in San Diego in August
The temperature in August is +79°F on average, with a range between a maximum of +82°F during the day and a minimum of +66°F at night.
The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +79°F to +82°F.
Is San Diego warm or cold in August?
San Diego is typically warm in August.
Maximum temperatures go down compared to the previous month from +73°F to +75°F. The minimum temperature also goes up from +66°F to +66°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is one of the warmest months in San Diego, here is the comparison with other months:
Climate in San Diego in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +73°F | +75°F | +75°F | ||||
| Min. temperature | ||||||
| +59°F | +61°F | +55°F | ||||
| Max. temperature | ||||||
| +95°F | +88°F | +100°F | ||||
| Rainfall | ||||||
| 3 mm | 3 mm | 9 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 75% | 75% | 74% | ||||
| Air pressure | ||||||
| 1012 HPa | 1011 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 4 | 5 | 7 | ||||
| Cloudy days | ||||||
| 27 | 26 | 22 | ||||
| Rainy days | ||||||
| 0 | 0 | 1 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting warmer as August arrives. The average maximum temperature goes up from +73°F to +75°F during the day. The rainfall amount in August stays the same as in the previous month with a 3 mm of total precipitation. Humidity levels don’t change as the month goes on, averaging around 75%. The average wind speed doesn’t change much during August, staying around 2 m/s. The good news is there are likely to be more sunny days in August, from 4 to 5.
September brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in San Diego is gradually increasing during August, going from 3 m/s to 4 m/s over the course of the month.
How was the weather last August in San Diego?
Climate Change Over the Years
The climate in San Diego in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+78°F) and the highest in 2020 (+90°F). The driest year was 2010 with only 0 mm of rainfall, and the wettest year was 2008 with 0 mm.
FAQ
Is August a good time to visit San Diego?
Can you sunbathe in San Diego in August?
Is San Diego rainy in August?
Is it sunny in San Diego in August?
Other cities in USA
Monthly weather in San Diego
Source of the data
For this page, we’ve looked at the typical weather in San Diego, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.