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SwedenThe weather in September in Västerås
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.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Västerås, Sweden. 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 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.
Rainfall amount
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.
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.
September weather comparison
| Västerås | New York | |
|---|---|---|
| Average temperature | 14°C | 27°C |
| Max. temperature | 17°C | 31°C |
| Min. temperature | 5°C | -5°C |
| Total precipitation | 60 mm | 57 mm |
| Rainy days | 9 days | 9 days |
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.
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.
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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.
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.
Temperature charts
These charts show the average temperatures in September in Västerås, Sweden. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Västerås
Temperature in September in Västerås over the years
Precipitation charts
These charts show the average amount of precipitation in September in Västerås, Sweden. 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 Västerås
Total precipitation in September in Västerås over the years
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.
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.