Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Riverside Weather in September
September in Riverside sees daytime temperatures around 34°C (93°F) and lows of 17°C (63°F) at night. Rainfall is minimal, so you're unlikely to need an umbrella.
Rainfall in Riverside in September
You can expect rain on around a single day based on historical patterns, with 4.5 mm (0.2 in) average for the month. If rain does fall, it tends to be a moderate shower rather than anything heavy.
Temperature in Riverside in September
Daytime temperatures in Riverside reach 34°C (93°F) in September, dropping to 17°C (63°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 17°C (63°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Riverside in September
Enjoy a sunny month with about 290 hours of sunshine, the clear skies make Riverside even more beautiful.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, October and November typically offer the best weather for Riverside.
Riverside Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
34°C (93°F)
Chance of Rain
3%
Precipitation
4.5 mm (0.2 in)
Rainy days
a single day
Sunshine
290 hours *
Percentage Sunshine
*
* Data from: Corona, the United States of America (18 KM, 11 Miles).
Riverside Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Riverside - and find the best time to visit.
Best Places in the United States of America in September
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 September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Riverside in September
Pack for serious heat in Riverside in September. 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Riverside in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Riverside 3-Day Forecast
More climate data for Riverside
See the full Riverside climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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