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.
Umatilla Weather in September
Umatilla in September averages 26°C (79°F) during the day and 10°C (50°F) at night. Minimal rainfall is typical for this time of year.
Rainfall in Umatilla in September
Expect around 4 days of rain based on historical data, with 9.7 mm (0.4 in) average. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Umatilla in September
September is one of the better months to visit Umatilla. Expect 26°C (79°F) during the day and 10°C (50°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.If your ideal day consists of dry skies and pleasant temperatures, April, May, June, September and October typically offer the best circumstances for Umatilla.
Umatilla Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
26°C (79°F)
Chance of Rain
13%
Precipitation
9.7 mm (0.4 in)
Rainy days
4 days
Umatilla Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Umatilla - 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 Umatilla in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Umatilla in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Umatilla 3-Day Forecast
More climate data for Umatilla
See the full Umatilla 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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