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
The shift from August to September includes a small decrease in the average high-temperature, from 19.3°C (66.7°F) to a still comfortable 16°C (60.8°F). Vallda's average temperature during the nights of September is recorded at a cool 11.5°C (52.7°F).Humidity
In September, the average relative humidity in Vallda is 79%.Rainfall
In Vallda, in September, during 16.7 rainfall days, 54mm (2.13") of precipitation is typically accumulated. Throughout the year, there are 175.7 rainfall days, and 549mm (21.61") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Vallda, the average length of the day in September is 12h and 47min.On the first day of September in Vallda, sunrise is at 06:14 and sunset at 20:09. On the last day of the month, sunrise is at 07:15 and sunset at 18:48 CEST.
Sunshine
In Vallda, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Vallda?
What is the average humidity in September in Vallda?
How much does it rain in Vallda in September?
When it does not snow in Vallda?
Does it snow in Vallda in September?
What is the average length of the day in September in Vallda?
When are sunrise and sunset in September in Vallda?
How long on average sun shines in September in Vallda?
What is the UV index reading in September in Vallda?
Average temperature in September
Vallda, Sweden
- Average high temperature in September: 16°C
The warmest month (with the highest average high temperature) is July (19.5°C).
The month with the lowest average high temperature is February (1.7°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is February (-1.4°C).
Average pressure in September
Vallda, Sweden
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is April (1014.8mbar).
The month with the lowest atmospheric pressure is December (1009mbar).
Average wind speed in September
Vallda, Sweden
- Average wind speed in September: 18.2km/h
The windiest month (with the highest average wind speed) is December (22.1km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in September
Vallda, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and December (86%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in September
Vallda, Sweden
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is August (68mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Vallda, Sweden
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in September
Vallda, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (42mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Vallda, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vallda, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and November (Average sunshine: 3h and 24min).
Average sunshine days in September
Vallda, Sweden
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is April (16.3 days).
The month with the least sunshine days is August (9.5 days).
Average UV index in September
Vallda, 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
Vallda, Sweden
- Average cloud cover in September: 49
The month with the most cloud cover is November (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in September
Vallda, 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).
