September weather forecastRosenborg, Sweden
September
Weather in September
September, the first month of the autumn in Rosenborg, is also an enjoyable month, with an average temperature varying between 9.6°C (49.3°F) and 16°C (60.8°F).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's pleasant 20.7°C (69.3°F) to an enjoyable 16°C (60.8°F). The nighttime temperature, during September, averages of 9.6°C (49.3°F).Humidity
In Rosenborg, the average relative humidity in September is 80%.Rainfall
In Rosenborg, Sweden, in September, it is raining for 11.5 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 131.4 rainfall days, and 350mm (13.78") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Rosenborg.Daylight
In Rosenborg, Sweden, the average length of the day in September is 12h and 50min.On the first day of the month, sunrise is at 05:47 and sunset at 19:50. On the last day of September, sunrise is at 06:53 and sunset at 18:25 CEST.
Sunshine
In Rosenborg, the average sunshine in September is 8.2h.UV index
In Rosenborg, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rosenborg, Sweden
- Average high temperature in September: 16°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is February (-3.6°C).
Average pressure in September
Rosenborg, Sweden
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Rosenborg, Sweden
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest months (with the lowest average wind speed) are July and August (12.5km/h).
Average humidity in September
Rosenborg, Sweden
- Average humidity in September: 80%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Rosenborg, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Rosenborg, Sweden
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Rosenborg, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (87mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rosenborg, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rosenborg, 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 12min
The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Rosenborg, Sweden
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is May (16.9 days).
The months with the least sunshine days are June and July (13.6 days).
Average UV index in September
Rosenborg, 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
Rosenborg, Sweden
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Rosenborg, 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).
