September weather forecastRönninge, Sweden
September
Weather in September
September, the first month of the autumn in Rönninge, is also a moderate month, with temperature in the range of an average low of 10°C (50°F) and an average high of 15.8°C (60.4°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's pleasant 20.4°C (68.7°F) to a mild 15.8°C (60.4°F). Nighttime temperatures hover around an average low of 10°C (50°F) in September.Humidity
The average relative humidity in September is 80%.Rainfall
In September, in Rönninge, the rain falls for 13.2 days. Throughout September, 28mm (1.1") of precipitation is accumulated. Throughout the year, there are 141.5 rainfall days, and 378mm (14.88") of precipitation is accumulated.Snowfall
In Rönninge, snow does not fall in June through September.Daylight
In Rönninge, the average length of the day in September is 12h and 50min.On the first day of September in Rönninge, sunrise is at 05:47 and sunset at 19:50. On the last day of the month, sunrise is at 06:52 and sunset at 18:24 CEST.
Sunshine
In Rönninge, Sweden, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Make use of precautions - It is urged to ward off sun damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. 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
Rönninge, Sweden
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in September
Rönninge, Sweden
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in September
Rönninge, Sweden
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest months (with the lowest average wind speed) are July and August (12.8km/h).
Average humidity in September
Rönninge, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Rönninge, Sweden
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in September
Rönninge, Sweden
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in September
Rönninge, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (102mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rönninge, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rönninge, Sweden
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in September
Rönninge, Sweden
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is February (11.9 days).
Average UV index in September
Rönninge, 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
Rönninge, Sweden
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Rönninge, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
