September weather forecastTysnes, Norway
September
Weather in September
September, the first month of the autumn in Tysnes, is still a refreshing month, with an average temperature ranging between min 11.2°C (52.2°F) and max 14.3°C (57.7°F).Temperature
Tysnes sees the arrival of September with an average high-temperature of a still refreshing 14.3°C (57.7°F), indicating a subtle variation from August. During September, Tysnes's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 11.2°C (52.2°F).Humidity
In Tysnes, the average relative humidity in September is 79%.Rainfall
In Tysnes, in September, during 20.7 rainfall days, 150mm (5.91") of precipitation is typically accumulated. Throughout the year, in Tysnes, there are 218 rainfall days, and 1453mm (57.2") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Tysnes is 12h and 52min.On the first day of September, sunrise is at 06:34 and sunset at 20:41. On the last day of the month, sunrise is at 07:42 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Tysnes, Norway, is 5.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, Norway
- Average daylight in September: 12h and 54min
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 0min).
- Average sunshine in September: 5h and 54min
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
Tysnes, 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
Tysnes, 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
Tysnes, 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
Tysnes, 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).





