September weather forecastOrnäs, Sweden
September
Weather in September
September, the first month of the autumn in Ornäs, is still a mild month, with temperature in the range of an average high of 14.9°C (58.8°F) and an average low of 7.5°C (45.5°F).Temperature
The arrival of September corresponds with a temperature reduction, down from August's pleasant 20°C (68°F) to a refreshing 14.9°C (58.8°F). Throughout the month of September, Ornäs observes an average nighttime temperature of 7.5°C (45.5°F).Humidity
In Ornäs, the average relative humidity in September is 79%.Rainfall
In Ornäs, in September, during 9.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In Ornäs, during the entire year, the rain falls for 103.4 days and collects up to 308mm (12.13") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 05:52 and sunset at 20:02. On the last day of September, sunrise is at 07:02 and sunset at 18:32 CEST.
Sunshine
In Ornäs, the average sunshine in September is 7.4h.UV index
In Ornäs, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ornäs, Sweden
- Average high temperature in September: 14.9°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-2.6°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.8°C).
Average pressure in September
Ornäs, Sweden
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1007.2mbar).
Average wind speed in September
Ornäs, Sweden
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is December (10.5km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in September
Ornäs, Sweden
- Average humidity in September: 79%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Ornäs, Sweden
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in September
Ornäs, Sweden
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Ornäs, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is March (122mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ornäs, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ornäs, Sweden
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Ornäs, Sweden
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is October (19.7 days).
The months with the least sunshine days are February and July (14.7 days).
Average UV index in September
Ornäs, 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, February and December (UV index 1).
Average cloud cover in September
Ornäs, Sweden
- Average cloud cover in September: 51
The month with the most cloud cover is February (Cloud cover 69).
The months with the least cloud cover are June and July (Cloud cover 46).
Average visibility in September
Ornäs, 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 (6km).
