September weather forecastKöpmanholmen, Sweden
September
Weather in September
September, the first month of the autumn in Köpmanholmen, is still a refreshing month, with temperature in the range of an average low of 10.1°C (50.2°F) and an average high of 13.4°C (56.1°F).Temperature
In Köpmanholmen, entering September brings a subtle temperature decrement, reducing from August's refreshing 17°C (62.6°F) to a moderate 13.4°C (56.1°F). In September, a low-temperature average of 10.1°C (50.2°F) is characteristic of Köpmanholmen, marking a minor shift from daytime temperatures.Humidity
In September, the average relative humidity is 79%.Rainfall
In Köpmanholmen, in September, it is raining for 13 days, with typically 36mm (1.42") of accumulated precipitation. Throughout the year, there are 127.9 rainfall days, and 424mm (16.69") of precipitation is accumulated.Snowfall
In Köpmanholmen, Sweden, snow does not fall in June through September.Daylight
In Köpmanholmen, the average length of the day in September is 12h and 59min.On the first day of the month, sunrise is at 05:33 and sunset at 19:58. On the last day of September, in Köpmanholmen, Sweden, sunrise is at 06:52 and sunset at 18:18 CEST.
Sunshine
In September, the average sunshine is 8h.UV index
The average daily maximum UV index in September in Köpmanholmen is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Köpmanholmen, Sweden
- Average high temperature in September: 13.4°C
The warmest month (with the highest average high temperature) is July (17.6°C).
The month with the lowest average high temperature is February (-2.5°C).
- Average low temperature in September: 10.1°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (-5.7°C).
Average pressure in September
Köpmanholmen, Sweden
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.5mbar).
Average wind speed in September
Köpmanholmen, Sweden
- Average wind speed in September: 17.8km/h
The windiest month (with the highest average wind speed) is December (22km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Köpmanholmen, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (73%).
Average rainfall in September
Köpmanholmen, Sweden
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (49mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Köpmanholmen, Sweden
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Köpmanholmen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (132mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Köpmanholmen, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Köpmanholmen, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 12min).
The month with the shortest days is December (Average daylight: 4h and 54min).
- Average sunshine in September: 8h and 0min
The months with the most sunshine are June and July (Average sunshine: 13h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Köpmanholmen, Sweden
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is June (16.8 days).
The month with the least sunshine days is January (9.4 days).
Average UV index in September
Köpmanholmen, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Köpmanholmen, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Köpmanholmen, Sweden
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
