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 sea temperature 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's onset introduces a mild reduction in the average high-temperature, from a refreshing 14.7°C (58.5°F) in August to a fresh 10.5°C (50.9°F). In September, Granvin records an average nighttime temperature of 4.8°C (40.6°F).Humidity
In Granvin, the average relative humidity in September is 83%.Rainfall
In Granvin, in September, during 18.2 rainfall days, 98mm (3.86") of precipitation is typically accumulated. In Granvin, during the entire year, the rain falls for 193.4 days and collects up to 1245mm (49.02") of precipitation.Snowfall
June through September are months without snowfall in Granvin.Sea temperature
In Granvin, the average seawater temperature in September is 14.4°C (57.9°F).Note: It is life-risking to swim in 14.4°C (57.9°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
The average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 06:28 and sunset at 20:37. On the last day of September, in Granvin, sunrise is at 07:37 and sunset at 19:07 CEST.
Sunshine
In Granvin, the average sunshine in September is 6.1h.UV index
In Granvin, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 2 in September transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the average September temperature in Granvin?
What is the average humidity in September in Granvin?
How much does it rain in Granvin in September?
When it does not snow in Granvin?
Does it snow in Granvin in September?
How cold is the water in September in Granvin?
What is the average length of the day in September in Granvin?
What time are sunrise and sunset in September in Granvin?
How many hours of sunshine does Granvin have in September?
What is the UV index intensity in September in Granvin?
Average temperature in September
Granvin, Norway
- Average high temperature in September: 10.5°C
The warmest month (with the highest average high temperature) is July (15.7°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 4.8°C
The month with the highest average low temperature is July (7.5°C).
The coldest month (with the lowest average low temperature) is February (-9.8°C).
Average pressure in September
Granvin, Norway
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1006.4mbar).
Average wind speed in September
Granvin, Norway
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is January (11.7km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in September
Granvin, Norway
- Average humidity in September: 83%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is June (75%).
Average rainfall in September
Granvin, Norway
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is December (164mm).
The driest month (with the least rainfall) is June (61mm).
Average rainfall days in September
Granvin, Norway
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is July (21.5 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in September
Granvin, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (474mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Granvin, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Granvin, Norway
- Average sea temperature in September: 14.4°C
The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Granvin, 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: 6h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in September
Granvin, Norway
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is November (12.5 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in September
Granvin, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, October, November and December (UV index 1).
Average cloud cover in September
Granvin, Norway
- Average cloud cover in September: 59
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is June (Cloud cover 52).
Average visibility in September
Granvin, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April and December (7km).
Granvin, Norway
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