San Bernardino Weather in August
August in San Bernardino typically sees daytime highs of 35°C (95°F) and nighttime lows of 18°C (64°F). Minimal rainfall is typical for this month.
Rainfall in San Bernardino in August
You can expect rain on around a single day based on historical patterns, with 3.9 mm (0.2 in) average for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in San Bernardino in August
If you're visiting San Bernardino in August, expect highs of 35°C (95°F) and overnight lows around 18°C (64°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.
Sunshine in San Bernardino in August
The month enjoys around 351 hours of sunshine, creating mostly sunny days with good weather conditions.August in San Bernardino has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Bernardino's climate page.
San Bernardino Temperature in August
Min Temperature
18°C (64°F)
Max Temperature
35°C (95°F)
Chance of Rain
3%
Precipitation
3.9 mm (0.2 in)
Rainy days
a single day
Sunshine
351 hours *
Percentage Sunshine
*
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
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unpleasant
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What to Wear in San Bernardino in August
Hot weather in August means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Bernardino in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Bernardino's climate page.
See the full San Bernardino climate overview or explore weather in the United States of America.
