September weather forecastGratangen, Norway
September
Weather in September
The first month of the autumn, September, is still a chilly month in Gratangen, Norway, with an average temperature ranging between min 4.9°C (40.8°F) and max 9.5°C (49.1°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 13.8°C (56.8°F) in August to a chilly 9.5°C (49.1°F). Gratangen's nighttime average temperature in September subtly descends to an icy 4.9°C (40.8°F) from the daily highs.Humidity
In Gratangen, Norway, the average relative humidity in September is 80%.Rainfall
In Gratangen, in September, during 16.3 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In Gratangen, Norway, during the entire year, the rain falls for 145.3 days and collects up to 845mm (33.27") of precipitation.Snowfall
Months with snowfall in Gratangen are January through June, September through December. September is the first month it typically snows in Gratangen. Throughout September, in the average 0.5 snowfall days, it receives 3mm (0.12") of snow. In Gratangen, during the entire year, snow falls for 97.8 days and aggregates up to 2575mm (101.38") of snow.Daylight
In September, the average length of the day is 13h and 16min.On the first day of September, sunrise is at 05:15 and sunset at 20:24. On the last day of the month, sunrise is at 07:02 and sunset at 18:17 CEST.
Sunshine
The average sunshine in September in Gratangen is 6.7h.UV index
In Gratangen, Norway, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during September translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Experience reduced UV exposure by about half when donning a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gratangen, Norway
- Average high temperature in September: 9.5°C
The warmest month (with the highest average high temperature) is July (14.7°C).
The month with the lowest average high temperature is January (-5.7°C).
- Average low temperature in September: 4.9°C
The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure in September
Gratangen, Norway
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1001.8mbar).
Average wind speed in September
Gratangen, Norway
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Gratangen, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is April (91%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Gratangen, Norway
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is March (101mm).
The driest month (with the least rainfall) is August (51mm).
Average rainfall days in September
Gratangen, Norway
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Gratangen, Norway
- Average snowfall in September: 3mm
The month with the highest snowfall is March (590mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Gratangen, Norway
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is March (18.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Gratangen, Norway
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 17h and 36min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in September
Gratangen, Norway
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is January (15.2 days).
The month with the least sunshine days is April (9.2 days).
Average UV index in September
Gratangen, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are March, April, October and November (UV index 1).
Average cloud cover in September
Gratangen, Norway
- Average cloud cover in September: 56
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 50).
Average visibility in September
Gratangen, Norway
- Average visibility in September: 9km
The months with the highest visibility are July, August and September (9km).
The months with the lowest visibility are March, April and May (7km).
