Rialto Weather in August
August in Rialto averages 35°C (95°F) during the day and 18°C (64°F) at night. With only 3.9 mm (0.2 in) of rainfall expected on average, it's a largely dry month.
Rainfall in Rialto in August
Climate statistics over the past 30 years suggest around a single day of rain, 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 Rialto in August
Daytime highs in Rialto in August reach 35°C (95°F), with nights around 18°C (64°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.
Sunshine in Rialto in August
The month enjoys around 351 hours of sunshine, creating mostly sunny days with good weather conditions.August in Rialto can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, 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 Rialto's climate page.
Rialto 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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tolerable
unpleasant
poor
What to Wear in Rialto in August
Pack for serious heat in Rialto in August. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Rialto 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 Rialto's climate page.
See the full Rialto climate overview or explore weather in the United States of America.
