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
With the onset of September, the average high-temperature subtly recedes from August's refreshing 18.4°C (65.1°F) to a moderate 13.9°C (57°F). Throughout the month of September, the average temperature dips to a frosty 6.2°C (43.2°F) at night.Humidity
In Gran, the average relative humidity in September is 81%.Rainfall
In Gran, in September, during 12.6 rainfall days, 53mm (2.09") of precipitation is typically accumulated. Throughout the year, there are 136.4 rainfall days, and 628mm (24.72") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 52min.On the first day of September, sunrise is at 06:13 and sunset at 20:21. On the last day of the month, sunrise is at 07:22 and sunset at 18:52 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Gran in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in Gran in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Gran, Norway
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is July (20.1°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 6.2°C
The month with the highest average low temperature is July (10.1°C).
The coldest month (with the lowest average low temperature) is February (-8.8°C).
Average pressure in September
Gran, Norway
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is April (1014.6mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Gran, Norway
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is May (8.5km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).
Average humidity in September
Gran, Norway
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Gran, Norway
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is July (73mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Gran, Norway
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Gran, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (295mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Gran, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gran, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in September
Gran, Norway
- Average sunshine days in September: 15.3 days
The months with the most sunshine days are March and October (16 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Gran, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Gran, Norway
- Average cloud cover in September: 50
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is June (Cloud cover 46).
Average visibility in September
Gran, Norway
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February and March (6km).
