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 sea temperature 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
The arrival of September suggests a slight decrease in the average high-temperature, moving from a comfortable 17.7°C (63.9°F) in August to a mild 13.2°C (55.8°F). An average low-temperature of 6.6°C (43.9°F) marks the nights throughout September.Humidity
The average relative humidity in September is 82%.Rainfall
In Straumen, during September, the rain falls for 16.8 days and regularly aggregates up to 76mm (2.99") of precipitation. In Straumen, Norway, during the entire year, the rain falls for 167.8 days and collects up to 717mm (28.23") of precipitation.Snowfall
In Straumen, snow does not fall in June through September.Sea temperature
In Straumen, in September, the average water temperature is 13.3°C (55.9°F).Note: Beware when you're in 13.3°C (55.9°F) waters; 13°C (55.4°F) is chilling and anything below 10°C (50°F) could cause breathing hindrance and a sudden cold shock, given your physical condition.
Daylight
In September, the average length of the day is 13h and 1min.On the first day of September, sunrise is at 05:59 and sunset at 20:29. On the last day of the month, sunrise is at 07:22 and sunset at 18:47 CEST.
Sunshine
The average sunshine in September is 6.7h.UV index
In September, the average daily maximum UV index in Straumen is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 2 during September morphs into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Straumen in September?
What is the average humidity in September in Straumen?
How much does it rain in Straumen in September?
When it does not snow in Straumen?
Does it snow in Straumen in September?
How cold is the water in September in Straumen?
How many hours of daylight does Straumen have in September?
When are sunrise and sunset in September in Straumen?
How long on average sun shines in September in Straumen?
What is the UV index intensity in September in Straumen?
Average temperature in September
Straumen, Norway
- Average high temperature in September: 13.2°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is July (9.5°C).
The coldest month (with the lowest average low temperature) is February (-6.5°C).
Average pressure in September
Straumen, Norway
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1003.5mbar).
Average wind speed in September
Straumen, Norway
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is January (11.7km/h).
The calmest months (with the lowest average wind speed) are July and August (8.3km/h).
Average humidity in September
Straumen, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are May and June (73%).
Average rainfall in September
Straumen, Norway
- Average rainfall in September: 76mm
The wettest month (with the highest rainfall) is March (78mm).
The driest month (with the least rainfall) is November (41mm).
Average rainfall days in September
Straumen, Norway
- Average rainfall days in September: 16.8 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
Straumen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (275mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Straumen, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Straumen, Norway
- Average sea temperature in September: 13.3°C
The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (4.5°C).
Average daylight in September /
Average sunshine in September
Straumen, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Straumen, Norway
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is December (9.4 days).
Average UV index in September
Straumen, 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 February and December (UV index 1).
Average cloud cover in September
Straumen, Norway
- Average cloud cover in September: 55
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 50).
Average visibility in September
Straumen, Norway
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January, February and March (7km).
