United StatesAverage weather for Winter in September
It's pleasantly warm in September in Winter with an average temperature of 21°C. Temperatures this month range from a low of 16°C to a high of 25°C. At night, you can expect temperatures between 5°C and 15°C.
Start of September
The month of September starts in Winter with warm temps, averaging around 23°C during the day and nights around 12°C. There are plenty of days with a good chance of precipitation.
Mid September
By mid-September, daytime temps drop to around 22°C, with nights around 11°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Winter is around 20°C, while nighttime temps are about 10°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
In September, there is an average of 156 mm of precipitation, spread over 11 days. The wind speed is around 3 Bft, mostly coming from the South.
Winter in September |
New York | ||
|---|---|---|---|
 Average temperature |
21°C | 27°C | |
 Max. temperature |
25°C | 31°C | |
| Min. temperature |
16°C | -5°C | |
 Total precipitation |
156 mm | 57 mm | |
| Rainy days |
11 days | 9 days | |
August
UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Winter?
Looking for sun? September isn’t a good month to be in Winter. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 34°C in 2023, Winter reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 22°C.
Check out the climate of Winter for all months and discover the best travel time
Daily Temperature in September in Winter
This chart shows the average daily high and low temperatures in September for Winter, 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 Winter
The chart below shows the average daily precipitation in September for Winter, 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 11 days of precipitation in Winter.
Daily UV index in September in Winter
This chart shows the average daily UV index in September in Winter, 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 Winter over the years
This chart shows the average temperature in September in Winter, measured in degrees Celsius, over the past few years.
Total precipitation in September in Winter over the years
This chart shows the average precipitation in September in Winter, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Winter
Click on any day in September to get detailed info about the usual weather on that day in Winter. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Winter
Have you been to Winter in September?
Share your weather experience in September in Winter.
Average weather in Winter by month
Click on a month below to see detailed weather info for Winter. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
