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 sea temperature 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
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's refreshing 19.8°C (67.6°F) to a still enjoyable 16.3°C (61.3°F). Hasslö's nighttime temperature in September shows a minor descent, with a steady average of 12.6°C (54.7°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Hasslö, in September, during 12.4 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Hasslö, during the entire year, the rain falls for 150.2 days and collects up to 411mm (16.18") of precipitation.Snowfall
May through October are months without snowfall in Hasslö, Sweden.Sea temperature
In Hasslö, the average seawater temperature in September is 16.1°C (61°F).Note: In water of 16.1°C (61°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 12h and 45min.On the first day of the month, sunrise is at 06:03 and sunset at 19:52. On the last day of September, in Hasslö, Sweden, sunrise is at 07:00 and sunset at 18:35 CEST.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are September temperatures in Hasslö?
What is the average humidity in September in Hasslö?
How much does it rain in Hasslö in September?
When it does not snow in Hasslö?
What is the sea temperature in September in Hasslö?
What is the average length of the day in September in Hasslö?
What time are sunrise and sunset in September in Hasslö?
How many hours of sunshine does Hasslö have in September?
What is the UV index intensity in September in Hasslö?
Average temperature in September
Hasslö, Sweden
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is August (19.8°C).
The month with the lowest average high temperature is January (2°C).
- Average low temperature in September: 12.6°C
The month with the highest average low temperature is August (15.5°C).
The coldest month (with the lowest average low temperature) is February (-0.4°C).
Average pressure in September
Hasslö, Sweden
- Average pressure in September: 1015.2mbar
The months with the highest atmospheric pressure are April and May (1015.5mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).
Average wind speed in September
Hasslö, Sweden
- Average wind speed in September: 20.9km/h
The windiest month (with the highest average wind speed) is December (24.5km/h).
The calmest month (with the lowest average wind speed) is June (17.5km/h).
Average humidity in September
Hasslö, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Hasslö, Sweden
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is July (47mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Hasslö, Sweden
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Hasslö, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (56mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Hasslö, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Hasslö, Sweden
- Average sea temperature in September: 16.1°C
The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest months (with the lowest average sea temperature) are February and March (2.3°C).
Average daylight in September /
Average sunshine in September
Hasslö, Sweden
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).
Average sunshine days in September
Hasslö, Sweden
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is April (18 days).
The months with the least sunshine days are November and December (9.3 days).
Average UV index in September
Hasslö, Sweden
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Hasslö, Sweden
- Average cloud cover in September: 40
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility in September
Hasslö, 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).
Hasslö, Sweden
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