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
September
Weather in September
Temperature
September marks a gentle change in average high-temperature, declining from August's comfortable 63.5°F to a fresh 54.7°F. An average temperature of 42.3°F is recorded in Gräfsåsen during the nights in September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Gräfsåsen, in September, during 13.5 rainfall days, 1.46" of precipitation is typically accumulated. In Gräfsåsen, during the entire year, the rain falls for 122.4 days and collects up to 14.84" of precipitation.Snowfall
January through May, September through December are months with snowfall in Gräfsåsen. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.2" of snow. In Gräfsåsen, Sweden, during the entire year, snow falls for 97.8 days and aggregates up to 38.5" of snow.Daylight
In September, the average length of the day is 12h and 59min.On the first day of September, sunrise is at 05:48 and sunset at 20:13. On the last day of the month, sunrise is at 07:07 and sunset at 18:33 CEST.
Sunshine
In Gräfsåsen, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in Gräfsåsen is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during September, leads to the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Gräfsåsen in September?
What is the average humidity in September in Gräfsåsen?
How many days does it rain in September in Gräfsåsen?
When does it start snowing in Gräfsåsen?
What is the average length of the day in September in Gräfsåsen?
What time are sunrise and sunset in September in Gräfsåsen?
How many hours of sunshine does Gräfsåsen have in September?
What is the UV index intensity in September in Gräfsåsen?
Average temperature in September
Gräfsåsen, Sweden
- Average high temperature in September: 54.7°F
The warmest month (with the highest average high temperature) is July (65.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 42.3°F
The month with the highest average low temperature is July (49.6°F).
The coldest months (with the lowest average low temperature) are January and February (14.7°F).
Average pressure in September
Gräfsåsen, Sweden
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is May (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.7"Hg).
Average wind speed in September
Gräfsåsen, Sweden
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in September
Gräfsåsen, Sweden
- Average humidity in September: 80%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (67%).
Average rainfall in September
Gräfsåsen, Sweden
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Gräfsåsen, Sweden
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Gräfsåsen, Sweden
- Average snowfall in September: 0.2"
The month with the highest snowfall is December (7.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Gräfsåsen, Sweden
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Gräfsåsen, 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: 7h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in September
Gräfsåsen, Sweden
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is December (11.4 days).
Average UV index in September
Gräfsåsen, Sweden
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Gräfsåsen, Sweden
- Average cloud cover in September: 50
The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 45).
Average visibility in September
Gräfsåsen, Sweden
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
