September weather forecastHarpsund, Sweden
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Harpsund, Sweden, with an average temperature fluctuating between 16.5°C (61.7°F) and 8.8°C (47.8°F).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from an agreeable 21.2°C (70.2°F) to a comfortable 16.5°C (61.7°F). Harpsund in September anticipates an average nighttime temperature of 8.8°C (47.8°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Harpsund, in September, during 11.7 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Harpsund, during the entire year, the rain falls for 125 days and collects up to 284mm (11.18") of precipitation.Snowfall
June through September are months without snowfall in Harpsund.Daylight
The average length of the day in September is 12h and 50min.On the first day of the month, sunrise is at 05:52 and sunset at 19:55. On the last day of September, sunrise is at 06:57 and sunset at 18:29 CEST.
Sunshine
The average sunshine in September in Harpsund, Sweden, is 8h.UV index
The average daily maximum UV index in September in Harpsund is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harpsund, Sweden
- Average high temperature in September: 16.5°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is July (12.3°C).
The coldest months (with the lowest average low temperature) are January and February (-4.8°C).
Average pressure in September
Harpsund, Sweden
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in September
Harpsund, Sweden
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in September
Harpsund, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and December (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Harpsund, Sweden
- Average rainfall in September: 20mm
The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Harpsund, Sweden
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Harpsund, Sweden
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (78mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Harpsund, Sweden
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harpsund, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Harpsund, Sweden
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is April (16.4 days).
The month with the least sunshine days is December (12.9 days).
Average UV index in September
Harpsund, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Harpsund, Sweden
- Average cloud cover in September: 47
The months with the most cloud cover are February and December (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 42).
Average visibility in September
Harpsund, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The month with the lowest visibility is February (7km).
