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Weather in San Luis Obispo for August 2025

Your guide to San Luis Obispo weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in San Luis Obispo at the beginning of August is 27.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 26.4 °F by the end of August.

  • Rain 🌧️

  • Precipitation in San Luis Obispo during August is a rare event, with an average of fewer than 2 rainy days.

  • More

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Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/15°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
57 %
Avg humidity

San Luis Obispo Weather August

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Temperatures trend during August in San Luis Obispo

See the weather trend as well as the moving average line

August weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
26° /15° 0 mm 7
Aug. 2 Sunny
Sunny
27° /15° 0 mm 7
Aug. 3 Sunny
Sunny
29° /16° 0 mm 7
Aug. 4 Sunny
Sunny
26° /15° 0 mm 7
Aug. 5 Sunny
Sunny
28° /15° 0 mm 7
Aug. 6 Sunny
Sunny
31° /18° 0 mm 8
Aug. 7 Sunny
Sunny
28° /16° 0 mm 7
Aug. 8 Sunny
Sunny
27° /16° 0 mm 7
Aug. 9 Sunny
Sunny
28° /15° 0 mm 7
Aug. 10 Sunny
Sunny
31° /18° 0 mm 8
Aug. 11 Partly cloudy
Partly cloudy
28° /15° 0 mm 7
Aug. 12 Sunny
Sunny
25° /14° 0 mm 7
Aug. 13 Sunny
Sunny
27° /15° 0 mm 7
Aug. 14 Sunny
Sunny
27° /15° 0 mm 7
Aug. 15 Sunny
Sunny
30° /16° 0 mm 8
Aug. 16 Sunny
Sunny
29° /17° 0 mm 7
Aug. 17 Sunny
Sunny
24° /15° 0 mm 6
Aug. 18 Sunny
Sunny
25° /14° 0 mm 7
Aug. 19 Sunny
Sunny
26° /13° 0 mm 7
Aug. 20 Sunny
Sunny
33° /16° 0 mm 8
Aug. 21 Sunny
Sunny
29° /14° 0 mm 7
Aug. 22 Sunny
Sunny
21° /13° 0 mm 6
Aug. 23 Overcast
Overcast
22° /12° 0 mm 5
Aug. 24 Sunny
Sunny
24° /10° 0 mm 6
Aug. 25 Sunny
Sunny
29° /13° 0 mm 7
Aug. 26 Sunny
Sunny
30° /14° 0 mm 8
Aug. 27 Sunny
Sunny
28° /14° 0 mm 7
Aug. 28 Cloudy
Cloudy
24° /13° 0 mm 5
Aug. 29 Sunny
Sunny
24° /12° 0 mm 6
Aug. 30 Sunny
Sunny
25° /13° 0 mm 7
Aug. 31 Sunny
Sunny
25° /13° 0 mm 7
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Important Notice
Our weather forecast for San Luis Obispo 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 Luis Obispo forecast closer to your planned date for the most up-to-date weather information.

San Luis Obispo in August - FAQ

What are the expected maximum and minimum temperatures in San Luis Obispo during August?
During August, expect a variety of temperatures with highs around 27° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Luis Obispo during August?
Rainfall in San Luis Obispo during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in San Luis Obispo during August?
The average wind speed in San Luis Obispo during August is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

UV exposure in San Luis Obispo during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is San Luis Obispo?

Get accurate weather forecasts for San Luis Obispo, located at latitude 35.283 and longitude -120.66. Stay updated with localized weather information tailored for San Luis Obispo.

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