September weather forecastRockhammar, Sweden
September
Weather in September
September, the first month of the autumn in Rockhammar, is still a refreshing month, with temperature in the range of an average high of 15.7°C (60.3°F) and an average low of 8.3°C (46.9°F).Temperature
With the onset of September, Rockhammar's average high-temperature slightly adjusts, moderately receding from August's agreeable 20.3°C (68.5°F) to a moderate 15.7°C (60.3°F). Throughout September, the temperature tends to fall to a consistent average low of 8.3°C (46.9°F).Humidity
In Rockhammar, the average relative humidity in September is 80%.Rainfall
In Rockhammar, in September, it is raining for 12 days, with typically 23mm (0.91") of accumulated precipitation. Throughout the year, there are 132.7 rainfall days, and 299mm (11.77") of precipitation is accumulated.Snowfall
In Rockhammar, snow does not fall in June through September.Daylight
In Rockhammar, the average length of the day in September is 12h and 51min.On the first day of the month, sunrise is at 05:55 and sunset at 20:00. On the last day of September, sunrise is at 07:02 and sunset at 18:33 CEST.
Sunshine
In September, the average sunshine is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. To protect against the Sun's most potent rays, avoid direct exposure around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rockhammar, Sweden
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (-1.4°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (11.9°C).
The coldest month (with the lowest average low temperature) is February (-5.3°C).
Average pressure in September
Rockhammar, Sweden
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Rockhammar, Sweden
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is December (12.2km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Rockhammar, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The months with the lowest relative humidity are May and June (69%).
Average rainfall in September
Rockhammar, Sweden
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is July (39mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Rockhammar, Sweden
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Rockhammar, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (90mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rockhammar, Sweden
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rockhammar, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Rockhammar, Sweden
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Rockhammar, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Rockhammar, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 70).
The months with the least cloud cover are June, July and August (Cloud cover 44).
Average visibility in September
Rockhammar, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January, February, March, November and December (7km).
