September weather forecastHelgøy, Norway
September weather for Helgøy, Norway: The first month of the autumn, September, is also a fresh month in Helgøy, Norway, with temperature in the range of an average high of 10.3°C (50.5°F) and an average low of 8.3°C (46.9°F). In Helgøy, Norway, in September, it is raining for 19.5 days, with typically 64mm (2.52") of accumulated precipitation.
September
Weather in September
The first month of the autumn, September, is also a fresh month in Helgøy, Norway, with temperature in the range of an average high of 10.3°C (50.5°F) and an average low of 8.3°C (46.9°F).Temperature
The transition into September notes an average high-temperature of a still cool 10.3°C (50.5°F), revealing a mild distinction from the 11.5°C (52.7°F) in August. The low temperature average in Helgøy during September reflects a slight decrease to a chilly 8.3°C (46.9°F) from the day's peak.Humidity
In September, the average relative humidity in Helgøy is 80%.Rainfall
In September, the rain falls for 19.5 days. Throughout September, 64mm (2.52") of precipitation is accumulated. In Helgøy, during the entire year, the rain falls for 169.3 days and collects up to 802mm (31.57") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Helgøy, Norway. Throughout September, in the average 0.3 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, in Helgøy, Norway, there are 103.8 snowfall days, and 1256mm (49.45") of snow is accumulated.Daylight
In September, the average length of the day in Helgøy is 13h and 22min.On the first day of the month, sunrise is at 04:59 and sunset at 20:25. On the last day of September, sunrise is at 06:56 and sunset at 18:08 CEST.
Sunshine
In Helgøy, the average sunshine in September is 5.9h.UV index
In Helgøy, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Helgøy, Norway
- Average high temperature in September: 10.3°C
The warmest month (with the highest average high temperature) is August (11.5°C).
The month with the lowest average high temperature is February (0.7°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is August (9.3°C).
The coldest month (with the lowest average low temperature) is February (-2.3°C).
Average pressure in September
Helgøy, Norway
- Average pressure in September: 1008.7mbar
The month with the highest atmospheric pressure is May (1013.6mbar).
The month with the lowest atmospheric pressure is December (1000.1mbar).
Average wind speed in September
Helgøy, Norway
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is January (28.2km/h).
The calmest month (with the lowest average wind speed) is July (17.1km/h).
Average humidity in September
Helgøy, Norway
- Average humidity in September: 80%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are January, March and December (73%).
Average rainfall in September
Helgøy, Norway
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is March (90mm).
The driest month (with the least rainfall) is July (47mm).
Average rainfall days in September
Helgøy, Norway
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is June (20.6 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Helgøy, Norway
- Average snowfall in September: 4mm
The month with the highest snowfall is March (258mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Helgøy, Norway
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Helgøy, Norway
- Average daylight in September: 13h and 24min
The month with the longest days is August (Average daylight: 18h and 12min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 54min
The month with the most sunshine is August (Average sunshine: 8h and 12min).
The month with the least sunshine is December (Average sunshine: 0h and 18min).
Average sunshine days in September
Helgøy, Norway
- Average sunshine days in September: 8 days
The month with the most sunshine days is August (10.3 days).
The month with the least sunshine days is March (3.6 days).
Average UV index in September
Helgøy, 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
Helgøy, Norway
- Average cloud cover in September: 60
The month with the most cloud cover is March (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 58).
Average visibility in September
Helgøy, Norway
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October and November (9km).
The month with the lowest visibility is March (7km).





