Richardson Weather in September
Thinking of visiting Richardson in September? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 20°C (68°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Richardson in September
You can typically expect 7 days of rain this month, averaging around 89 mm (3.5 in). When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Richardson in September
In September, expect very high temperatures in Richardson, with highs of 32°C (90°F) and lows of 20°C (68°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights are mild at around 20°C (68°F), which is comfortable for most people.
Sunshine in Richardson in September
The city usually sees around 248 hours of sunlight, indicating many sunny days — a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. April and November typically offer the best weather for Richardson.
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 Richardson's climate page.
Richardson Temperature in September
Min Temperature
20°C (68°F)
Max Temperature
32°C (90°F)
Chance of Rain
22%
Precipitation
89 mm (3.5 in)
Rainy days
7 days
Humidity
67% *
Sunshine
248 hours *
Percentage Sunshine
66% *
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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What to Wear in Richardson 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Richardson 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 Richardson's climate page.
Temperature Rainfall Sunshine Humidity
See the full Richardson climate overview or explore weather in the United States of America.
