Richland Weather in September
September in Richland typically sees daytime highs of 31°C (88°F) and nighttime lows of 19°C (66°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Richland in September
Looking at the last 30 years, the data shows about 8 days with rain, averaging 107 mm (4.2 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Richland in September
September in Richland brings very high temperatures, with highs of 31°C (88°F) and nights around 19°C (66°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Richland in September
Expect sunny days throughout the month, with an estimated 232 hours of sunshine. This makes it a pleasant time to visit Richland.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and October typically offer the best weather for Richland.
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 Richland's climate page.
Richland Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
31°C (88°F)
Chance of Rain
27%
Precipitation
107 mm (4.2 in)
Rainy days
8 days
Humidity
77% *
Sunshine
232 hours *
Percentage Sunshine
63% *
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 →
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What to Wear in Richland in September
Warm but pleasant conditions in Richland 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Richland 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 Richland's climate page.
Temperature Rainfall Sunshine Humidity
See the full Richland climate overview or explore weather in the United States of America.
