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
In Jämtön, the average high-temperature in September slightly decreases from an enjoyable 16.8°C (62.2°F) in August to a fresh 12.3°C (54.1°F). Jämtön's nocturnal average in September closely mirrors its daytime temperatures, settling at a frosty 7.9°C (46.2°F).Humidity
The average relative humidity in September is 81%.Rainfall
In Jämtön, in September, during 13.8 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Jämtön, during the entire year, the rain falls for 117.7 days and collects up to 437mm (17.2") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Jämtön. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Jämtön, during the entire year, snow falls for 96.5 days and aggregates up to 1080mm (42.52") of snow.Daylight
The average length of the day in September is 13h and 6min.On the first day of the month, sunrise is at 05:07 and sunset at 19:51. On the last day of September, in Jämtön, sunrise is at 06:39 and sunset at 18:00 CEST.
Sunshine
The average sunshine in September in Jämtön is 7.2h.UV index
In Jämtön, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Jämtön?
What is the average humidity in September in Jämtön?
How many days does it rain in September in Jämtön?
When does it start to snow in Jämtön?
How many hours of daylight does Jämtön have in September?
What time are sunrise and sunset in September in Jämtön?
How long on average sun shines in September in Jämtön?
What is the UV index reading in September in Jämtön?
Average temperature in September
Jämtön, Sweden
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 7.9°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-11.1°C).
Average pressure in September
Jämtön, Sweden
- Average pressure in September: 1010.9mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in September
Jämtön, Sweden
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in September
Jämtön, Sweden
- Average humidity in September: 81%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Jämtön, Sweden
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Jämtön, Sweden
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Jämtön, Sweden
- Average snowfall in September: 1mm
The month with the highest snowfall is March (231mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Jämtön, Sweden
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Jämtön, Sweden
- Average daylight in September: 13h and 1min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 18min).
Average sunshine days in September
Jämtön, Sweden
- Average sunshine days in September: 14 days
The months with the most sunshine days are June and August (16.3 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in September
Jämtön, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in September
Jämtön, Sweden
- Average cloud cover in September: 50
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Jämtön, 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, March and April (7km).
