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
The initiation of September records an average high-temperature of a moderate 14.3°C (57.7°F), displaying a near consistency with the previous month. September notes an average low temperature of 11.2°C (52.2°F), subtly down from the daytime highs.Humidity
The average relative humidity in September is 79%.Rainfall
In September, the rain falls for 20.7 days. Throughout September, 150mm (5.91") of precipitation is accumulated. Throughout the year, there are 218 rainfall days, and 1453mm (57.2") of precipitation is accumulated.Snowfall
In Onarheim, Norway, snow does not fall in June through September.Daylight
In Onarheim, Norway, the average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 06:34 and sunset at 20:40. On the last day of September, sunrise is at 07:41 and sunset at 19:12 CEST.
Sunshine
The average sunshine in September in Onarheim is 5.9h.UV index
In Onarheim, Norway, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Onarheim?
What is the average humidity in September in Onarheim?
How many days does it rain in September in Onarheim?
When it does not snow in Onarheim?
Does it snow in Onarheim in September?
How many hours of daylight does Onarheim have in September?
When is the sunrise / sunset in September in Onarheim?
How many hours of sunshine does Onarheim have in September?
What is the UV index intensity in September in Onarheim?
Average temperature in September
Onarheim, Norway
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is August (16.7°C).
The months with the lowest average high temperature are January and February (3.4°C).
- Average low temperature in September: 11.2°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 (0.8°C).
Average pressure in September
Onarheim, Norway
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1006.2mbar).
Average wind speed in September
Onarheim, Norway
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest months (with the lowest average wind speed) are June and July (13.9km/h).
Average humidity in September
Onarheim, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Onarheim, Norway
- Average rainfall in September: 150mm
The wettest month (with the highest rainfall) is December (189mm).
The driest month (with the least rainfall) is April (65mm).
Average rainfall days in September
Onarheim, Norway
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is December (21.9 days).
The month with the least rainy days is June (14.5 days).
Average snowfall in September
Onarheim, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (101mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Onarheim, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Onarheim, 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: 5h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Onarheim, Norway
- Average sunshine days in September: 8 days
The month with the most sunshine days is June (14.6 days).
The month with the least sunshine days is December (6.2 days).
Average UV index in September
Onarheim, 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, November and December (UV index 2).
Average cloud cover in September
Onarheim, Norway
- Average cloud cover in September: 58
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Onarheim, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
