The highest day temperature in September 2023 was 76°F. The lowest night temperature was 43°F. The average values for day and night temperatures during September were 66.2°F и 53.7°F respectivly.

The average sea surface temperature in September 2023 for Vasteras was 63.3°F. The maximum and minimum values were 60.6°F and 65.0°F respectively.

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in September for Vasteras is 1.3 in.

The average wind speed in September is 8.0 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Vasteras in September is 7.0 hours.