September weather forecastHellesylt, Norway
September
Weather in September
September brings a mild coolness, registering a high of 9.2°C (48.6°F) and a low of 3.7°C (38.7°F), which reminds Hellesylt of the upcoming cold season. The landscape undergoes a transformation, embracing autumn's vibrant colors. Rainfall of 75mm (2.95") turns the foliage into a stunning color palette of red, orange, and yellow, pleasing to the eye. Visitors tend to gravitate towards outdoor exhibitions, showcasing the city's art and cultural vibrancy. Despite being a transitional month, the city receives an ample amount of sunshine, keeping the spirits high.Temperature
As August shifts into September in Hellesylt, a minor alteration in temperatures is observed, with average highs reducing from a mild 13°C (55.4°F) to a frosty 9.2°C (48.6°F). Throughout September, an average nighttime temperature of 3.7°C (38.7°F) is experienced.Humidity
In Hellesylt, Norway, the average relative humidity in September is 81%.Rainfall
In Hellesylt, in September, it is raining for 16.7 days, with typically 75mm (2.95") of accumulated precipitation. In Hellesylt, during the entire year, the rain falls for 198.4 days and collects up to 1051mm (41.38") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Hellesylt is 12h and 56min.On the first day of September, sunrise is at 06:23 and sunset at 20:41. On the last day of the month, sunrise is at 07:38 and sunset at 19:06 CEST.
Sunshine
The average sunshine in September in Hellesylt is 6.9h.UV index
In September, the average daily maximum UV index in Hellesylt is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 2 in September transforms into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hellesylt, Norway
- Average high temperature in September: 9.2°C
The warmest month (with the highest average high temperature) is July (13.6°C).
The month with the lowest average high temperature is January (-5.5°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is July (7.2°C).
The coldest month (with the lowest average low temperature) is February (-10.2°C).
Average pressure in September
Hellesylt, Norway
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1004.7mbar).
Average wind speed in September
Hellesylt, Norway
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest month (with the lowest average wind speed) is July (8.6km/h).
Average humidity in September
Hellesylt, Norway
- Average humidity in September: 81%
The months with the highest relative humidity are March and April (91%).
The months with the lowest relative humidity are July and August (78%).
Average rainfall in September
Hellesylt, Norway
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is January (144mm).
The driest month (with the least rainfall) is June (55mm).
Average rainfall days in September
Hellesylt, Norway
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is February (12.5 days).
Average snowfall in September
Hellesylt, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (588mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hellesylt, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hellesylt, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Hellesylt, Norway
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (14.2 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in September
Hellesylt, Norway
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in September
Hellesylt, Norway
- Average cloud cover in September: 54
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is November (Cloud cover 53).
Average visibility in September
Hellesylt, Norway
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September and October (9km).
The months with the lowest visibility are March and April (7km).
