United StatesAverage weather for Roswell in September
It's hot in September in Roswell with an average temperature of 32°C. Temperatures this month range from a low of 28°C to a high of 35°C. At night, you can expect temperatures between 14°C and 20°C.
Start of September
The month of September starts in Roswell with hot temps, averaging around 34°C during the day and nights around 20°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
Mid September
By mid-September, daytime temps drop to around 33°C, with nights around 18°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of September
By the end of September, the average daytime temperature in Roswell is around 31°C, while nighttime temps are about 17°C. A shower might pop up, but overall, the weather will be dry and sunny.
Because temperatures drop in the evening, wearing layers is recommended.
In September, there is an average of 38 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the South.
Roswell in September |
New York | ||
|---|---|---|---|
 Average temperature |
32°C | 27°C | |
 Max. temperature |
35°C | 31°C | |
| Min. temperature |
28°C | -5°C | |
 Total precipitation |
38 mm | 57 mm | |
| Rainy days |
5 days | 9 days | |
August
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Roswell?
September is a good month to be in Roswell for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 41°C in 2023, Roswell reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 8°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 23°C.
Check out the climate of Roswell for all months and discover the best travel time
Daily Temperature in September in Roswell
This chart shows the average daily high and low temperatures in September for Roswell, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Roswell
The chart below shows the average daily precipitation in September for Roswell, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 5 days of precipitation in Roswell.
Daily UV index in September in Roswell
This chart shows the average daily UV index in September in Roswell, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Roswell over the years
This chart shows the average temperature in September in Roswell, measured in degrees Celsius, over the past few years.
Total precipitation in September in Roswell over the years
This chart shows the average precipitation in September in Roswell, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Roswell
Click on any day in September to get detailed info about the usual weather on that day in Roswell. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Roswell
Have you been to Roswell in September?
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Average weather in Roswell by month
Click on a month below to see detailed weather info for Roswell. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
