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
September brings a minor shift in the average high-temperature, adjusting from an enjoyable 18°C (64.4°F) in August to a mild 13.5°C (56.3°F). September's nights in Grundsunda observe an average temperature of 7.6°C (45.7°F).Humidity
In Grundsunda, the average relative humidity in September is 80%.Rainfall
In Grundsunda, in September, during 12.5 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, in Grundsunda, there are 118.4 rainfall days, and 372mm (14.65") of precipitation is accumulated.Snowfall
In Grundsunda, snow does not fall in June through September.Daylight
In Grundsunda, the average length of the day in September is 12h and 59min.On the first day of September in Grundsunda, sunrise is at 05:29 and sunset at 19:56. On the last day of the month, sunrise is at 06:50 and sunset at 18:15 CEST.
Sunshine
In Grundsunda, the average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Grundsunda is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the average September temperature in Grundsunda?
What is the average humidity in September in Grundsunda?
How many days does it rain in September in Grundsunda?
When it does not snow in Grundsunda?
Does it snow in Grundsunda in September?
What is the average length of the day in September in Grundsunda?
What time are sunrise and sunset in September in Grundsunda?
How long on average sun shines in September in Grundsunda?
What is the UV index reading in September in Grundsunda?
Average temperature in September
Grundsunda, Sweden
- Average high temperature in September: 13.5°C
The warmest month (with the highest average high temperature) is July (19.3°C).
The month with the lowest average high temperature is January (-3.5°C).
- Average low temperature in September: 7.6°C
The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (-7.5°C).
Average pressure in September
Grundsunda, Sweden
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.5mbar).
Average wind speed in September
Grundsunda, Sweden
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (11.4km/h).
Average humidity in September
Grundsunda, Sweden
- Average humidity in September: 80%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Grundsunda, Sweden
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Grundsunda, Sweden
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is August (15 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Grundsunda, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (191mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grundsunda, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grundsunda, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Grundsunda, Sweden
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is June (16.8 days).
The month with the least sunshine days is December (9.7 days).
Average UV index in September
Grundsunda, 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, February, November and December (UV index 1).
Average cloud cover in September
Grundsunda, Sweden
- Average cloud cover in September: 47
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Grundsunda, Sweden
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is February (7km).
Grundsunda, Sweden
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