San Diego County
August
Weather in San Diego County for August 2025
Your guide to San Diego County weather in August - trends and predictions
In general, the average temperature in San Diego County at the beginning of August is 26.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 25.3 °F by the end of August.
With an average of 4 rainy days, San Diego County experiences minimal rainfall in August, ensuring that most days remain pleasantly dry.
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27
Dry days
4
Rainy days
0
Snow days
26°/18°
Temperatures
17 km/h
Avg max wind
71 %
Avg humidity
San Diego County in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  27° | 3 27° | ||||
| 4 26° | 5 27° | 6 26° | 7 25° | 8  25° | 9 25° | 10  24° |
| 11 25° | 12 25° | 13 25° | 14 25° | 15 26° | 16 27° | 17 26° |
| 18 26° | 19 25° | 20  27° | 21 24° | 22 24° | 23 24° | 24 23° |
| 25 24° | 26 25° | 27 26° | 28 26° | 29 26° | 30 25° | 31 25° |
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Temperatures trend during August in San Diego County
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Cloudy | 26° /20° | 0 mm | 6 | |
| Aug. 2 | Partly cloudy | 27° /19° | 0 mm | 7 | |
| Aug. 3 | Cloudy | 27° /20° | 0 mm | 7 | |
| Aug. 4 | Cloudy | 26° /19° | 0 mm | 7 | |
| Aug. 5 | Cloudy | 27° /20° | 0 mm | 7 | |
| Aug. 6 | Partly cloudy | 26° /19° | 0 mm | 7 | |
| Aug. 7 | Partly cloudy | 25° /19° | 0 mm | 6 | |
| Aug. 8 | Patchy rain possible | 25° /19° | 0.4 mm | 6 | |
| Aug. 9 | Patchy rain possible | 25° /20° | 0.2 mm | 6 | |
| Aug. 10 | Overcast | 24° /19° | 0.1 mm | 6 | |
| Aug. 11 | Patchy rain possible | 25° /20° | 2.5 mm | 6 | |
| Aug. 12 | Patchy rain possible | 25° /20° | 0.1 mm | 6 | |
| Aug. 13 | Overcast | 25° /19° | 0 mm | 6 | |
| Aug. 14 | Overcast | 25° /19° | 0 mm | 6 | |
| Aug. 15 | Cloudy | 26° /20° | 0 mm | 7 | |
| Aug. 16 | Cloudy | 27° /20° | 0 mm | 7 | |
| Aug. 17 | Partly cloudy | 26° /20° | 0 mm | 7 | |
| Aug. 18 | Cloudy | 26° /19° | 0 mm | 7 | |
| Aug. 19 | Overcast | 25° /20° | 0 mm | 6 | |
| Aug. 20 | Moderate or heavy rain shower | 27° /21° | 26.3 mm | 7 | |
| Aug. 21 | Patchy rain possible | 24° /19° | 0.7 mm | 6 | |
| Aug. 22 | Overcast | 24° /18° | 0 mm | 6 | |
| Aug. 23 | Overcast | 24° /18° | 0 mm | 6 | |
| Aug. 24 | Overcast | 23° /18° | 0 mm | 6 | |
| Aug. 25 | Overcast | 24° /18° | 0 mm | 6 | |
| Aug. 26 | Cloudy | 25° /19° | 0 mm | 7 | |
| Aug. 27 | Cloudy | 26° /18° | 0 mm | 7 | |
| Aug. 28 | Cloudy | 26° /18° | 0 mm | 6 | |
| Aug. 29 | Cloudy | 26° /18° | 0 mm | 6 | |
| Aug. 30 | Cloudy | 25° /18° | 0 mm | 6 | |
| Aug. 31 | Cloudy | 25° /19° | 0 mm | 6 | |
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Important Notice
Our weather forecast for San Diego County in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Diego County forecast closer to your planned date for the most up-to-date weather information.
San Diego County in August - FAQ
What are the expected maximum and minimum temperatures in San Diego County during August?
During August, expect a variety of temperatures with highs around 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Diego County during August?
Moderate rainfall is anticipated in San Diego County during August, with a total of 55.2 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Diego County during August?
The average wind speed in San Diego County during August is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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Where is San Diego County?Get accurate weather forecasts for San Diego County, located at latitude 32.716 and longitude -117.165. Stay updated with localized weather information tailored for San Diego County.
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