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
September implies a soft temperature shift, with average high-temperatures reducing from August's enjoyable 18.8°C (65.8°F) to a mild 14.8°C (58.6°F). In the month of September, the average temperature in Tronstad dips to a frosty 7.2°C (45°F) during the night.Humidity
The average relative humidity in September in Tronstad is 80%.Rainfall
The months with the most rainfall are July, September and November, with an average 42mm (1.65") of precipitation.Snowfall
In Tronstad, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 52min.On the first day of September in Tronstad, sunrise is at 06:15 and sunset at 20:22. On the last day of the month, sunrise is at 07:23 and sunset at 18:54 CEST.
Sunshine
In September, the average sunshine is 7.7h.UV index
In Tronstad, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Act with care - The need to guard against sun damage is communicated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Tronstad?
What is the average humidity in September in Tronstad?
What is the wettest month in Tronstad?
How many days does it rain in September in Tronstad?
When it does not snow in Tronstad?
Does it snow in Tronstad in September?
What is the average length of the day in September in Tronstad?
What time are sunrise and sunset in September in Tronstad?
How long on average sun shines in September in Tronstad?
What is the UV index reading in September in Tronstad?
Average temperature in September
Tronstad, Norway
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.4°C).
- Average low temperature in September: 7.2°C
The month with the highest average low temperature is July (10.6°C).
The coldest months (with the lowest average low temperature) are January and February (-7.2°C).
Average pressure in September
Tronstad, Norway
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Tronstad, Norway
- Average wind speed in September: 9.5km/h
The windiest months (with the highest average wind speed) are January and December (10.6km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in September
Tronstad, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Tronstad, Norway
- Average rainfall in September: 42mm
The wettest months (with the highest rainfall) are July, September and November (42mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Tronstad, Norway
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (15.2 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in September
Tronstad, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (113mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Tronstad, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tronstad, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in September
Tronstad, Norway
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is April (19.1 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in September
Tronstad, Norway
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Tronstad, Norway
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in September
Tronstad, Norway
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July and September (9km).
The months with the lowest visibility are January, February and March (7km).
