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
During September, Riverside experiences high daytime temperatures of 26°C (79°F) and cooler nights around 16°C (61°F). Expect quite a bit of rainfall. Around 129 mm (5.1 in) is typical.
Rainfall in Riverside in September
You can typically expect 10 days of rain this month, averaging around 129 mm (5.1 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Riverside in September
Expect highs of 26°C (79°F) in Riverside in September, with nights dropping to around 16°C (61°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.If you prefer enjoying temperate temperatures and rain-free days, May typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Riverside Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
26°C (79°F)
Chance of Rain
32%
Precipitation
129 mm (5.1 in)
Rainy days
10 days
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
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
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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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
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.
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