SwedenAverage weather for Västerås in September
It's cool in September in Västerås with an average temperature of 14°C. Temperatures this month range from a low of 11°C to a high of 17°C. At night, you can expect temperatures between 5°C and 9°C.
Start of September
The month of September starts in Västerås with cool temps, averaging around 17°C during the day and nights around 8°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid September
By mid-September, daytime temps drop to around 15°C, with nights around 8°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Västerås is around 12°C, while nighttime temps are about 6°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 60 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Västerås in September |
New York | ||
|---|---|---|---|
 Average temperature |
14°C | 27°C | |
 Max. temperature |
17°C | 31°C | |
| Min. temperature |
11°C | -5°C | |
 Total precipitation |
60 mm | 57 mm | |
| Rainy days |
9 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.
Temperature records
With 24°C in 2023, Västerås 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 -4°C to a highest value of 15°C.
Check out the climate of Västerås for all months and discover the best travel time
Curious about the weather in other parts of Sweden? Check out the climate and weather for spots like Stockholm, Småland, Malmö, or explore other destinations in Sweden.
Daily Temperature in September in Västerås
This chart shows the average daily high and low temperatures in September for Västerås, 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 Västerås
The chart below shows the average daily precipitation in September for Västerås, 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 9 days of precipitation in Västerås.
Daily UV index in September in Västerås
This chart shows the average daily UV index in September in Västerås, 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 Västerås over the years
This chart shows the average temperature in September in Västerås, measured in degrees Celsius, over the past few years.
Total precipitation in September in Västerås over the years
This chart shows the average precipitation in September in Västerås, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Västerås
Click on any day in September to get detailed info about the usual weather on that day in Västerås. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Västerås
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Average weather in Västerås by month
Click on a month below to see detailed weather info for Västerås. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
