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
In September, Mongstad notes an average high-temperature of a still moderate 13.9°C (57°F), hardly different from the preceding month. Mongstad logs an average low-temperature of 11.6°C (52.9°F) during the nights of September, subtly lower than its daytime highs.Humidity
In September, the average relative humidity is 78%.Rainfall
In Mongstad, in September, it is raining for 21.8 days, with typically 161mm (6.34") of accumulated precipitation. In Mongstad, Norway, during the entire year, the rain falls for 229.7 days and collects up to 1406mm (55.35") of precipitation.Snowfall
June through September are months without snowfall in Mongstad.Daylight
In September, the average length of the day in Mongstad is 12h and 53min.On the first day of the month, sunrise is at 06:34 and sunset at 20:45. On the last day of September, in Mongstad, sunrise is at 07:44 and sunset at 19:14 CEST.
Sunshine
The average sunshine in September is 5.7h.UV index
In Mongstad, Norway, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during September leads to these advisories:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What are September temperatures in Mongstad?
What is the average humidity in September in Mongstad?
How many days does it rain in September in Mongstad?
When it does not snow in Mongstad?
Does it snow in Mongstad in September?
How many hours of daylight does Mongstad have in September?
When are sunrise and sunset in September in Mongstad?
How long on average sun shines in September in Mongstad?
How high is the UV index in September in Mongstad?
Average temperature in September
Mongstad, Norway
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is August (15.7°C).
The month with the lowest average high temperature is February (4.3°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Mongstad, Norway
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1005mbar).
Average wind speed in September
Mongstad, Norway
- Average wind speed in September: 23.6km/h
The windiest month (with the highest average wind speed) is January (29.5km/h).
The calmest month (with the lowest average wind speed) is July (18.5km/h).
Average humidity in September
Mongstad, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
Mongstad, Norway
- Average rainfall in September: 161mm
The wettest month (with the highest rainfall) is October (178mm).
The driest month (with the least rainfall) is June (56mm).
Average rainfall days in September
Mongstad, Norway
- Average rainfall days in September: 21.8 days
The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (14.7 days).
Average snowfall in September
Mongstad, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (51mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Mongstad, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mongstad, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).
Average sunshine days in September
Mongstad, Norway
- Average sunshine days in September: 7.2 days
The month with the most sunshine days is June (13.5 days).
The month with the least sunshine days is December (5.4 days).
Average UV index in September
Mongstad, 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, March, October, November and December (UV index 2).
Average cloud cover in September
Mongstad, Norway
- Average cloud cover in September: 60
The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Mongstad, Norway
- Average visibility in September: 9km
The months with the highest visibility are May, June, July and August (10km).
The months with the lowest visibility are January, February, March, April, September, October, November and December (9km).
Mongstad, Norway
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