September weather forecastArholma, Sweden
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Arholma, Sweden, with temperature in the range of an average low of 10.9°C (51.6°F) and an average high of 15.2°C (59.4°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from 19.5°C (67.1°F) to a still refreshing 15.2°C (59.4°F). The temperature in Arholma, Sweden, during September experiences a small drop from daytime peaks, recording an average of 10.9°C (51.6°F) at night.Humidity
In Arholma, the average relative humidity in September is 79%.Rainfall
In September, in Arholma, the rain falls for 13.3 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, in Arholma, there are 140.1 rainfall days, and 354mm (13.94") of precipitation is accumulated.Snowfall
In Arholma, snow does not fall in June through September.Daylight
In Arholma, the average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 05:40 and sunset at 19:46. On the last day of September, in Arholma, sunrise is at 06:47 and sunset at 18:18 CEST.
Sunshine
In Arholma, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arholma, Sweden
- Average high temperature in September: 15.2°C
The warmest months (with the highest average high temperature) are July and August (19.5°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in September: 10.9°C
The months with the highest average low temperature are July and August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-2.5°C).
Average pressure in September
Arholma, Sweden
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in September
Arholma, Sweden
- Average wind speed in September: 17.1km/h
The windiest month (with the highest average wind speed) is December (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Arholma, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are February and November (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in September
Arholma, Sweden
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Arholma, Sweden
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Arholma, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (82mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Arholma, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Arholma, Sweden
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in September
Arholma, Sweden
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is May (14.5 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in September
Arholma, 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 and February (UV index 1).
Average cloud cover in September
Arholma, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Arholma, Sweden
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
