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
The average high-temperature slightly decreases in September, shifting from 19.9°C (67.8°F) in August to a still refreshing 16.4°C (61.5°F). During the nights of September, the average low-temperature holds at a fresh 12.1°C (53.8°F).Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 11.7 days. Throughout September, 24mm (0.94") of precipitation is accumulated. In Rälla, during the entire year, the rain falls for 153.3 days and collects up to 392mm (15.43") of precipitation.Snowfall
In Rälla, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 46min.On the first day of the month, sunrise is at 05:57 and sunset at 19:49. On the last day of September, sunrise is at 06:56 and sunset at 18:30 CEST.
Sunshine
The average sunshine in September is 8.7h.UV index
In Rälla, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the usual temperature for Rälla in September?
What is the average humidity in September in Rälla?
How many days does it rain in September in Rälla?
When it does not snow in Rälla?
How many hours of daylight does Rälla have in September?
When is the sunrise / sunset in September in Rälla?
How long on average sun shines in September in Rälla?
What is the UV index intensity in September in Rälla?
Average temperature in September
Rälla, Sweden
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is August (19.9°C).
The months with the lowest average high temperature are January and February (1.8°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).
Average pressure in September
Rälla, Sweden
- Average pressure in September: 1014.8mbar
The months with the highest atmospheric pressure are April and May (1015.3mbar).
The month with the lowest atmospheric pressure is December (1010.1mbar).
Average wind speed in September
Rälla, Sweden
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is December (22.8km/h).
The calmest month (with the lowest average wind speed) is May (16.1km/h).
Average humidity in September
Rälla, Sweden
- Average humidity in September: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May and June (74%).
Average rainfall in September
Rälla, Sweden
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (47mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Rälla, Sweden
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in September
Rälla, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (72mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Rälla, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rälla, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 42min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 3h and 18min).
Average sunshine days in September
Rälla, Sweden
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is May (16.4 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in September
Rälla, Sweden
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Rälla, Sweden
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Rälla, Sweden
- Average visibility in September: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
Rälla, Sweden
Weather forecast for your location
2. Allow the app to use your location
