Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in temperature, down from 19.7°C (67.5°F) in August to a still refreshing 15.4°C (59.7°F). Throughout September, a modest shift from daytime highs is anticipated, with an average low-temperature of 10.6°C (51.1°F).Humidity
In Fermsholmen, the average relative humidity in September is 79%.Rainfall
In September, in Fermsholmen, the rain falls for 9.6 days. Throughout September, 11mm (0.43") of precipitation is accumulated. In Fermsholmen, during the entire year, the rain falls for 98.4 days and collects up to 140mm (5.51") of precipitation.Snowfall
In Fermsholmen, snow does not fall in June through September.Daylight
In Fermsholmen, the average length of the day in September is 12h and 51min.On the first day of September in Fermsholmen, sunrise is at 05:43 and sunset at 19:48. On the last day of the month, sunrise is at 06:50 and sunset at 18:21 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index in Fermsholmen, Sweden, is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Fermsholmen?
What is the average humidity in September in Fermsholmen?
How many days does it rain in September in Fermsholmen?
When it does not snow in Fermsholmen?
Does it snow in Fermsholmen in September?
How many hours of daylight does Fermsholmen have in September?
What time are sunrise and sunset in September in Fermsholmen?
How many hours of sunshine does Fermsholmen have in September?
How high is the UV index in September in Fermsholmen?
Average temperature in September
Fermsholmen, Sweden
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (0°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Fermsholmen, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Fermsholmen, Sweden
- Average wind speed in September: 16.7km/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 (14.2km/h).
Average humidity in September
Fermsholmen, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February, November and December (86%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Fermsholmen, Sweden
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is July (18mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in September
Fermsholmen, Sweden
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is July (11.1 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Fermsholmen, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (32mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Fermsholmen, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fermsholmen, Sweden
- Average daylight in September: 12h and 5min
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: 8h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Fermsholmen, Sweden
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is April (20.8 days).
The month with the least sunshine days is December (14.6 days).
Average UV index in September
Fermsholmen, 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
Fermsholmen, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Fermsholmen, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Fermsholmen, Sweden
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