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
Weather in September
Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a pleasant 20.4°C (68.7°F) in August to a moderate 15.8°C (60.4°F). The month of September records an average low-temperature of 8.6°C (47.5°F) in Norra Runnaby.Humidity
The average relative humidity in September is 80%.Rainfall
In Norra Runnaby, Sweden, during September, the rain falls for 9 days and regularly aggregates up to 13mm (0.51") of precipitation. Throughout the year, in Norra Runnaby, Sweden, there are 104.5 rainfall days, and 149mm (5.87") of precipitation is accumulated.Snowfall
In Norra Runnaby, snow does not fall in June through September.Daylight
In September, the average length of the day in Norra Runnaby is 12h and 50min.On the first day of September in Norra Runnaby, sunrise is at 05:57 and sunset at 20:01. On the last day of the month, sunrise is at 07:03 and sunset at 18:35 CEST.
Sunshine
In Norra Runnaby, the average sunshine in September is 7.6h.UV index
In Norra Runnaby, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 3 during September translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are the temperatures in Norra Runnaby in September?
What is the average humidity in September in Norra Runnaby?
How much does it rain in Norra Runnaby in September?
When it does not snow in Norra Runnaby?
Does it snow in Norra Runnaby in September?
How many hours of daylight does Norra Runnaby have in September?
What time are sunrise and sunset in September in Norra Runnaby?
How many hours of sunshine does Norra Runnaby have in September?
How high is the UV index in September in Norra Runnaby?
Average temperature in September
Norra Runnaby, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in September: 8.6°C
The month with the highest average low temperature is July (12.3°C).
The coldest months (with the lowest average low temperature) are January and February (-4.5°C).
Average pressure in September
Norra Runnaby, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in September
Norra Runnaby, Sweden
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is December (12.8km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Norra Runnaby, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Norra Runnaby, Sweden
- Average rainfall in September: 13mm
The wettest month (with the highest rainfall) is July (20mm).
The driest month (with the least rainfall) is April (6mm).
Average rainfall days in September
Norra Runnaby, Sweden
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Norra Runnaby, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is March (39mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Norra Runnaby, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Norra Runnaby, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Norra Runnaby, Sweden
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is March (19 days).
The months with the least sunshine days are February and December (15.4 days).
Average UV index in September
Norra Runnaby, Sweden
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Norra Runnaby, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in September
Norra Runnaby, Sweden
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
Norra Runnaby, Sweden
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