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
September
Weather in September
Temperature
September brings a slight decrease in temperature, down from an agreeable 20.9°C (69.6°F) in August to an enjoyable 17.2°C (63°F). In Knästorp, the September nights cool down to an average low of 11.9°C (53.4°F).Humidity
In Knästorp, Sweden, the average relative humidity in September is 78%.Rainfall
In Knästorp, in September, during 9.2 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, there are 109.6 rainfall days, and 153mm (6.02") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Knästorp.Daylight
In September, the average length of the day in Knästorp is 12h and 44min.On the first day of the month, sunrise is at 06:13 and sunset at 20:00. On the last day of September, sunrise is at 07:09 and sunset at 18:44 CEST.
Sunshine
In Knästorp, the average sunshine in September is 7.9h.UV index
In Knästorp, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take precautions - Protection against sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Knästorp in September?
What is the average humidity in September in Knästorp?
How much does it rain in Knästorp in September?
When it does not snow in Knästorp?
What is the average length of the day in September in Knästorp?
What time are sunrise and sunset in September in Knästorp?
How long on average sun shines in September in Knästorp?
How high is the UV index in September in Knästorp?
Average temperature in September
Knästorp, Sweden
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 11.9°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is February (-0.8°C).
Average pressure in September
Knästorp, Sweden
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).
Average wind speed in September
Knästorp, Sweden
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is December (18.9km/h).
The calmest month (with the lowest average wind speed) is July (14.1km/h).
Average humidity in September
Knästorp, Sweden
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (88%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in September
Knästorp, Sweden
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is July (19mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in September
Knästorp, Sweden
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Knästorp, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (19mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Knästorp, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Knästorp, Sweden
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 48min).
Average sunshine days in September
Knästorp, Sweden
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is April (20.9 days).
The month with the least sunshine days is December (14.5 days).
Average UV index in September
Knästorp, Sweden
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Knästorp, Sweden
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Knästorp, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).
