Hermiston Weather in September
September is one of the perfect months to visit Hermiston, with daytime temperatures of 27°C (81°F) and lows of 10°C (50°F) at night. Rainfall is minimal, averaging just 9.3 mm (0.4 in) for the month.
Rainfall in Hermiston in September
Past climate data indicates that roughly 4 days will see rain, totalling around 9.3 mm (0.4 in) for the month. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in Hermiston in September
September in Hermiston is generally perfect, with days reaching 27°C (81°F) and nights settling around 10°C (50°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Hermiston.
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 Hermiston's climate page.
Hermiston Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
27°C (81°F)
Chance of Rain
12%
Precipitation
9.3 mm (0.4 in)
Rainy days
4 days
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
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tolerable
unpleasant
poor
What to Wear in Hermiston in September
Warm but pleasant conditions in Hermiston in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection.What To Do in Hermiston in September
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 Hermiston's climate page.
See the full Hermiston climate overview or explore weather in the United States of America.
