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 onset of September is marked by a minor decrease in temperature, transitioning from an agreeable 20.8°C (69.4°F) in August to an enjoyable 16.3°C (61.3°F). Hjälstaby records a consistent low-temperature of 8.9°C (48°F) during September nights.Humidity
The average relative humidity in September in Hjälstaby is 79%.Rainfall
In Hjälstaby, in September, it is raining for 13.4 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 147 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
In Hjälstaby, snow does not fall in June through September.Daylight
In September, the average length of the day in Hjälstaby is 12h and 51min.On the first day of September in Hjälstaby, Sweden, sunrise is at 05:47 and sunset at 19:53. On the last day of the month, sunrise is at 06:54 and sunset at 18:25 CEST.
Sunshine
In Hjälstaby, the average sunshine in September is 8h.UV index
In Hjälstaby, Sweden, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are September temperatures in Hjälstaby?
What is the average humidity in September in Hjälstaby?
How much does it rain in Hjälstaby in September?
When it does not snow in Hjälstaby?
Does it snow in Hjälstaby in September?
How many hours of daylight does Hjälstaby have in September?
What time are sunrise and sunset in September in Hjälstaby?
How many hours of sunshine does Hjälstaby have in September?
What is the UV index reading in September in Hjälstaby?
Average temperature in September
Hjälstaby, Sweden
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1.1°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is July (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (-4.8°C).
Average pressure in September
Hjälstaby, Sweden
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in September
Hjälstaby, Sweden
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest months (with the lowest average wind speed) are July and August (11.2km/h).
Average humidity in September
Hjälstaby, Sweden
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in September
Hjälstaby, Sweden
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Hjälstaby, Sweden
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in September
Hjälstaby, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is December (110mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hjälstaby, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hjälstaby, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in September
Hjälstaby, Sweden
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Hjälstaby, 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 February (UV index 1).
Average cloud cover in September
Hjälstaby, Sweden
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are June, July and August (Cloud cover 42).
Average visibility in September
Hjälstaby, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).
Hjälstaby, Sweden
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