September weather forecastJondal, Norway
September
Weather in September
September, the first month of the autumn in Jondal, is still a cool month, with an average temperature varying between 6.6°C (43.9°F) and 11.6°C (52.9°F).Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a mild 14.9°C (58.8°F) in August to a fresh 11.6°C (52.9°F). Nighttime temperatures hover around an average low of 6.6°C (43.9°F) in September, a slight descent from daytime highs.Humidity
In September, the average relative humidity in Jondal is 84%.Rainfall
In Jondal, in September, during 20.2 rainfall days, 169mm (6.65") of precipitation is typically accumulated. In Jondal, during the entire year, the rain falls for 174.2 days and collects up to 2062mm (81.18") of precipitation.Snowfall
January through July, September through December are months with snowfall in Jondal. September is the first month it typically snows in Jondal. Throughout September, in the average 0.7 snowfall days, it receives 18mm (0.71") of snow. Throughout the year, there are 125.8 snowfall days, and 6228mm (245.2") of snow is accumulated.Sea temperature
In Jondal, the average seawater temperature in September is 14.6°C (58.3°F).Note: Dipping into 14.6°C (58.3°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
In Jondal, the average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 06:30 and sunset at 20:38. On the last day of September, sunrise is at 07:39 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine is 5.2h.UV index
In Jondal, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in September translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jondal, Norway
- Average high temperature in September: 11.6°C
The warmest month (with the highest average high temperature) is July (15.4°C).
The month with the lowest average high temperature is January (-2°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is August (8.9°C).
The coldest month (with the lowest average low temperature) is February (-6.5°C).
Average pressure in September
Jondal, Norway
- Average pressure in September: 1012.1mbar
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
Jondal, Norway
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
Jondal, Norway
- Average humidity in September: 84%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is June (77%).
Average rainfall in September
Jondal, Norway
- Average rainfall in September: 169mm
The wettest month (with the highest rainfall) is December (283mm).
The driest month (with the least rainfall) is June (95mm).
Average rainfall days in September
Jondal, Norway
- Average rainfall days in September: 20.2 days
The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Jondal, Norway
- Average snowfall in September: 18mm
The month with the highest snowfall is January (1273mm).
The month with the least snowfall is August (0mm).
Average snowfall days in September
Jondal, Norway
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is March (22.3 days).
The month with the least snowfall days is August (0 days).
Average sea temperature in September
Jondal, Norway
- Average sea temperature in September: 14.6°C
The best month for swimming (with the highest average sea temperature) is August (15.9°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Jondal, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 5h and 12min
The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Jondal, Norway
- Average sunshine days in September: 7.9 days
The months with the most sunshine days are April and May (11.1 days).
The month with the least sunshine days is December (6.1 days).
Average UV index in September
Jondal, Norway
- Average UV index in September: 2
The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Jondal, Norway
- Average cloud cover in September: 64
The month with the most cloud cover is December (Cloud cover 72).
The months with the least cloud cover are May and June (Cloud cover 56).
Average visibility in September
Jondal, Norway
- Average visibility in September: 8km
The months with the highest visibility are June and August (9km).
The months with the lowest visibility are January, February, March and December (7km).
