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
The start of September involves a subtle temperature drop, shifting from a chilly 9.9°C (49.8°F) in August to a wintry 5.3°C (41.5°F). Gronnedal experiences a subtle drop in temperature during the September nights, recording an average of 1.7°C (35.1°F).Humidity
The average relative humidity in September in Gronnedal, Greenland, is 75%.Rainfall
In Gronnedal, in September, it is raining for 14.5 days, with typically 73mm (2.87") of accumulated precipitation. Throughout the year, in Gronnedal, Greenland, there are 114.5 rainfall days, and 701mm (27.6") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Gronnedal. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 3mm (0.12") of snow. In Gronnedal, during the entire year, snow falls for 85.8 days and aggregates up to 1313mm (51.69") of snow.Daylight
In Gronnedal, Greenland, the average length of the day in September is 12h and 53min.On the first day of September in Gronnedal, Greenland, sunrise is at 07:06 and sunset at 21:18. On the last day of the month, sunrise is at 08:18 and sunset at 19:46 -01.
Sunshine
In September, the average sunshine in Gronnedal is 7.5h.UV index
The months with the lowest UV index are February and September, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 1 during September leads to these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold does it get in Gronnedal in September?
What is the average humidity in September in Gronnedal?
How much does it rain in Gronnedal in September?
When does it start snowing in Gronnedal?
What is the average length of the day in September in Gronnedal?
What time are sunrise and sunset in September in Gronnedal?
How long on average sun shines in September in Gronnedal?
What are the months with the lowest UV index in Gronnedal?
How high is the UV index in September in Gronnedal?
Average temperature in September
Gronnedal, Greenland
- Average high temperature in September: 5.3°C
The warmest month (with the highest average high temperature) is July (10.3°C).
The month with the lowest average high temperature is February (-5.4°C).
- Average low temperature in September: 1.7°C
The month with the highest average low temperature is July (5.7°C).
The coldest month (with the lowest average low temperature) is February (-10.2°C).
Average pressure in September
Gronnedal, Greenland
- Average pressure in September: 1004.4mbar
The month with the highest atmospheric pressure is June (1013.2mbar).
The month with the lowest atmospheric pressure is January (997.6mbar).
Average wind speed in September
Gronnedal, Greenland
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is November (23.2km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in September
Gronnedal, Greenland
- Average humidity in September: 75%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Gronnedal, Greenland
- Average rainfall in September: 73mm
The wettest month (with the highest rainfall) is November (75mm).
The driest month (with the least rainfall) is February (44mm).
Average rainfall days in September
Gronnedal, Greenland
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Gronnedal, Greenland
- Average snowfall in September: 3mm
The month with the highest snowfall is January (260mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Gronnedal, Greenland
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is January (14.4 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Gronnedal, Greenland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Gronnedal, Greenland
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in September
Gronnedal, Greenland
- Average UV index in September: 1
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are February and September (UV index 1).
Average cloud cover in September
Gronnedal, Greenland
- Average cloud cover in September: 48
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Gronnedal, Greenland
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Gronnedal, Greenland
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