Average weather for West Acton in September
It's warm in September in West Acton with an average temperature of 24°C. Temperatures this month range from a low of 18°C to a high of 28°C. At night, you can expect temperatures between 10°C and 17°C.
Start of September
The month of September starts in West Acton with hot temps, averaging around 27°C during the day and nights around 16°C. There are plenty of days with a good chance of precipitation.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 13°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 West Acton is around 23°C, while nighttime temps are about 12°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 161 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
West Acton in September |
New York | ||
---|---|---|---|
![]() |
24°C | 27°C | |
![]() |
28°C | 31°C | |
![]() |
18°C | -5°C | |
![]() |
161 mm | 57 mm | |
![]() |
8 days | 9 days |
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit West Acton?
Looking for sun? September isn’t a good month to be in West Acton. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 35°C in 2015, West Acton reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 12°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 22°C.
Check out the climate of West Acton for all months and discover the best travel time
Daily Temperature in September in West Acton
This chart shows the average daily high and low temperatures in September for West Acton, 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 West Acton
The chart below shows the average daily precipitation in September for West Acton, 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 8 days of precipitation in West Acton.
Daily UV index in September in West Acton
This chart shows the average daily UV index in September in West Acton, 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 West Acton over the years
This chart shows the average temperature in September in West Acton, measured in degrees Celsius, over the past few years.
Total precipitation in September in West Acton over the years
This chart shows the average precipitation in September in West Acton, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for West Acton
Click on any day in September to get detailed info about the usual weather on that day in West Acton. Check out the historical temperatures and precipitation over the past 10 years on this day.






























Weather experiences in September in West Acton
Have you been to West Acton in September?
Share your weather experience in September in West Acton.
Average weather in West Acton by month
Click on a month below to see detailed weather info for West Acton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of West Acton for all months at once