The weather in September in Roswell

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.

September is a good month to be in Roswell for sunny weather. You’ll have high temperatures and not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Roswell, New Mexico. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

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.

Rainfall amount

In September, there is an average of 38 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the South.

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.

September weather comparison

  Roswell New York
Average temperature 32°C 27°C
Max. temperature 35°C 31°C
Min. temperature 14°C -5°C
Total precipitation 38 mm 57 mm
Rainy days 7 days 9 days

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.

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.

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.

Find affordable trips to Roswell

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.

Check out the climate of Roswell for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Roswell, New Mexico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Roswell

Temperature in September in Roswell over the years

Precipitation charts

These charts show the average amount of precipitation in September in Roswell, New Mexico. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Roswell

Total precipitation in September in Roswell over the years

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.

Weather experiences in September in Roswell

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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.