September weather forecastRognes, Norway
September
Weather in September
The first month of the autumn, September, is also a fresh month in Rognes, Norway, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 11.4°C (52.5°F).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a mild 15.3°C (59.5°F) in August to a fresh 11.4°C (52.5°F). Rognes's nighttime temperature during September is consistently averaged at a wintry 4.3°C (39.7°F).Humidity
The average relative humidity in September is 81%.Rainfall
In September, the rain falls for 14.5 days. Throughout September, 37mm (1.46") of precipitation is accumulated. Throughout the year, there are 142.8 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
Months with snowfall in Rognes are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1 snowfall days, it receives 20mm (0.79") of snow. Throughout the year, there are 99.8 snowfall days, and 1449mm (57.05") of snow is accumulated.Daylight
In Rognes, Norway, the average length of the day in September is 12h and 58min.On the first day of the month, sunrise is at 06:06 and sunset at 20:29. On the last day of September, sunrise is at 07:24 and sunset at 18:51 CEST.
Sunshine
In Rognes, Norway, the average sunshine in September is 7.6h.UV index
In Rognes, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: During September, 2 as the daily maximum UV index converts into the following advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rognes, Norway
- Average high temperature in September: 11.4°C
The warmest month (with the highest average high temperature) is July (16°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 4.3°C
The month with the highest average low temperature is July (7.4°C).
The coldest month (with the lowest average low temperature) is January (-9.4°C).
Average pressure in September
Rognes, Norway
- Average pressure in September: 1011mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in September
Rognes, Norway
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is January (14.5km/h).
The calmest month (with the lowest average wind speed) is July (8.7km/h).
Average humidity in September
Rognes, Norway
- Average humidity in September: 81%
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is June (76%).
Average rainfall in September
Rognes, Norway
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is August (74mm).
The driest month (with the least rainfall) is November (20mm).
Average rainfall days in September
Rognes, Norway
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (22 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Rognes, Norway
- Average snowfall in September: 20mm
The month with the highest snowfall is March (249mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Rognes, Norway
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is March (16.6 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Rognes, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 4h and 54min).
- Average sunshine in September: 7h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Rognes, Norway
- Average sunshine days in September: 13 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in September
Rognes, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and March (UV index 1).
Average cloud cover in September
Rognes, Norway
- Average cloud cover in September: 51
The month with the most cloud cover is March (Cloud cover 63).
The month with the least cloud cover is November (Cloud cover 48).
Average visibility in September
Rognes, Norway
- Average visibility in September: 8km
The month with the highest visibility is June (9km).
The month with the lowest visibility is April (6km).
