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
Karlstad's September weather features a light decline in high-temperatures, reducing from a comfortable 19.8°C (67.6°F) in August to a moderate 15.6°C (60.1°F). An average nighttime temperature of 10°C (50°F) is noted in Karlstad during the month of September.Humidity
In September, the average relative humidity in Karlstad is 78%.Rainfall
In Karlstad, in September, it is raining for 13.9 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Karlstad, there are 151 rainfall days, and 477mm (18.78") of precipitation is accumulated.Snowfall
In Karlstad, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 50min.On the first day of the month, sunrise is at 06:03 and sunset at 20:07. On the last day of September, in Karlstad, sunrise is at 07:10 and sunset at 18:41 CEST.
Sunshine
In Karlstad, the average sunshine in September is 8h.UV index
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 ordinary person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Karlstad?
What is the average humidity in September in Karlstad?
How many days does it rain in September in Karlstad?
When it does not snow in Karlstad?
Does it snow in Karlstad in September?
How many hours of daylight does Karlstad have in September?
What time are sunrise and sunset in September in Karlstad?
How many hours of sunshine does Karlstad have in September?
What is the UV index intensity in September in Karlstad?
Average temperature in September
Karlstad, Sweden
- Average high temperature in September: 15.6°C
The warmest month (with the highest average high temperature) is July (20.8°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 (13.3°C).
The coldest month (with the lowest average low temperature) is February (-3.8°C).
Average pressure in September
Karlstad, Sweden
- Average pressure in September: 1013.2mbar
The months with the highest atmospheric pressure are April and May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1008mbar).
Average wind speed in September
Karlstad, Sweden
- Average wind speed in September: 14.9km/h
The windiest month (with the highest average wind speed) is December (16.7km/h).
The calmest month (with the lowest average wind speed) is July (12.7km/h).
Average humidity in September
Karlstad, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Karlstad, Sweden
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is July (57mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Karlstad, Sweden
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (17.4 days).
The months with the least rainy days are January and February (7.1 days).
Average snowfall in September
Karlstad, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Karlstad, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Karlstad, 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: 8h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Karlstad, Sweden
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is April (17.5 days).
The month with the least sunshine days is November (10.6 days).
Average UV index in September
Karlstad, 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 December (UV index 1).
Average cloud cover in September
Karlstad, Sweden
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are June, July and August (Cloud cover 40).
Average visibility in September
Karlstad, Sweden
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and March (8km).
Karlstad, Sweden
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