Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September reveals a small adjustment in temperature, transitioning from an average high of a mild 13.5°C (56.3°F) in August to a chilly 9.1°C (48.4°F). In Flostrand, an average temperature of 3.6°C (38.5°F) is noted during September nights.Humidity
The average relative humidity in September is 86%.Rainfall
In Flostrand, in September, during 20.7 rainfall days, 137mm (5.39") of precipitation is typically accumulated. Throughout the year, there are 181.1 rainfall days, and 1305mm (51.38") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 116.7 snowfall days, and 3043mm (119.8") of snow is accumulated.Daylight
In September, the average length of the day is 13h and 7min.On the first day of September, sunrise is at 05:42 and sunset at 20:30. On the last day of the month, sunrise is at 07:16 and sunset at 18:36 CEST.
Sunshine
The average sunshine in September is 4.8h.UV index
The average daily maximum UV index in September in Flostrand is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 2 suggests this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Flostrand in September?
What is the average humidity in September in Flostrand?
How many days does it rain in September in Flostrand?
When does it start snowing in Flostrand?
What is the average length of the day in September in Flostrand?
When is the sunrise / sunset in September in Flostrand?
How many hours of sunshine does Flostrand have in September?
How high is the UV index in September in Flostrand?
Average temperature in September
Flostrand, Norway
- Average high temperature in September: 9.1°C
The warmest month (with the highest average high temperature) is July (14.8°C).
The month with the lowest average high temperature is January (-6.7°C).
- Average low temperature in September: 3.6°C
The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-11.8°C).
Average pressure in September
Flostrand, Norway
- Average pressure in September: 1009.7mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.7mbar).
Average wind speed in September
Flostrand, Norway
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is January (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Flostrand, Norway
- Average humidity in September: 86%
The month with the highest relative humidity is April (93%).
The month with the lowest relative humidity is July (77%).
Average rainfall in September
Flostrand, Norway
- Average rainfall in September: 137mm
The wettest month (with the highest rainfall) is March (160mm).
The driest month (with the least rainfall) is June (69mm).
Average rainfall days in September
Flostrand, Norway
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is August (21.2 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Flostrand, Norway
- Average snowfall in September: 1mm
The month with the highest snowfall is March (626mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Flostrand, Norway
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Flostrand, Norway
- Average daylight in September: 13h and 1min
The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 2h and 54min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is July (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Flostrand, Norway
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is October (9.9 days).
The month with the least sunshine days is March (7 days).
Average UV index in September
Flostrand, Norway
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April, October, November and December (UV index 1).
Average cloud cover in September
Flostrand, Norway
- Average cloud cover in September: 68
The month with the most cloud cover is March (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 60).
Average visibility in September
Flostrand, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The month with the lowest visibility is April (6km).
