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Riverton weather in August 2025
Expect daytime maximum temperatures of 30°C in Riverton, Wyoming in August based on long-term weather averages. There are 10 hours of sunshine per day on average.
- 30°C max day temperature
30 - 10 hours of sunshine per day
- 5 days with some rainfall
5 - 10°C min night temperature
10 - 14 hours of daylight per day
14 - Moderate heat & humidity
M - 12 mm of monthly rainfall
12 - 9 (Very High) UV index
9
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The August weather guide for Wyoming (Riverton) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
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How hot is it in Riverton in August?
Daytime temperatures usually reach 30°C in Riverton in August with moderate heat and humidity, falling to 10°C at night.
How sunny is it in Riverton in August?
There are normally 10 hours of bright sunshine each day in Riverton in August - that's 75% of daylight hours.
Does it rain in Riverton in August?
There are usually 5 days with some rain in Riverton in August and the average monthly rainfall is 12mm.
Riverton August sunrise & sunset times
Browse the sunrise and sunset times for Riverton in August 2025. Select a month to view Riverton sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:05 | 19:34 |
| Saturday, 16th August 2025 | 05:21 | 19:14 |
| Sunday, 31st August 2025 | 05:37 | 18:49 |
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