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.
Harriman Weather in September
September in Harriman typically sees daytime highs of 28°C (82°F) and nighttime lows of 15°C (59°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Harriman in September
Past climate data indicates that roughly 10 days will see rain, totalling around 108 mm (4.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Harriman in September
In September, Harriman gets high temperatures, with highs of 28°C (82°F). Nights cool to around 15°C (59°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 15°C (59°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.
Sunshine in Harriman in September
Enjoy a sunny month with about 233 hours of sunshine, the clear skies make Harriman even more beautiful.If your ideal day consists of dry skies and pleasant temperatures, October typically offers the best circumstances for Harriman.
Harriman Temperature in September
Min Temperature
15°C (59°F)
Max Temperature
28°C (82°F)
Chance of Rain
33%
Precipitation
108 mm (4.3 in)
Rainy days
10 days
Humidity
76% *
Sunshine
233 hours *
Percentage Sunshine
62% *
* Data from: Knoxville, the United States of America (56 KM, 35 Miles).
Harriman Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Harriman - 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 Harriman 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. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Harriman in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Harriman 3-Day Forecast
More climate data for Harriman
Temperature Rainfall Sunshine Humidity
See the full Harriman 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.
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Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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