September weather forecast
Vallersvik, Sweden

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Weather in September

September, the first month of the autumn in Vallersvik, is also a moderate month, with an average temperature fluctuating between 10.6°C (51.1°F) and 15.4°C (59.7°F).

Temperature

In Vallersvik, the average high-temperature in September gently drops from a comfortable 19.7°C (67.5°F) in August to a still refreshing 15.4°C (59.7°F). Vallersvik's nighttime temperatures in September reveal a minimal variation from the daytime highs, averaging at a cool 10.6°C (51.1°F).

Humidity

In Vallersvik, Sweden, the average relative humidity in September is 79%.

Rainfall

In Vallersvik, Sweden, during September, the rain falls for 9.6 days and regularly aggregates up to 11mm (0.43") of precipitation. In Vallersvik, during the entire year, the rain falls for 98.4 days and collects up to 140mm (5.51") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Vallersvik is 12h and 51min.
On the first day of September, sunrise is at 05:43 and sunset at 19:48. On the last day of the month, sunrise is at 06:50 and sunset at 18:21 CEST.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September in Vallersvik is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

What is the usual temperature for Vallersvik in September?

During September, Vallersvik experiences an average high-temperature of 15.4°C (59.7°F) and a low-temperature of 10.6°C (51.1°F).

What is the average humidity in September in Vallersvik?

The average relative humidity in September in Vallersvik is 79%.

How many days does it rain in September in Vallersvik?

In Vallersvik, in September, it is raining for 9.6 days, with typically 11mm (0.43") of accumulated precipitation.

When it does not snow in Vallersvik?

June through September are months without snowfall in Vallersvik, Sweden.

Does it snow in Vallersvik in September?

In Vallersvik, Sweden, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Vallersvik?

In September, the average day length in Vallersvik, Sweden, is 12h and 51min.

When is the sunrise / sunset in September in Vallersvik?

In September, on the first day of the month, sunrise is at 05:43 and sunset at 19:48. On the last day of the month, in Vallersvik, Sweden, sunrise is at 06:50 and sunset at 18:21 CEST.

How long on average sun shines in September in Vallersvik?

In Vallersvik, Sweden, the average sunshine duration in September is 8.3h.

What is the UV index reading in September in Vallersvik?

In September, the average daily maximum UV index in Vallersvik, Sweden, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Vallersvik, Sweden

Average temperature in September - Vallersvik, Sweden
  • Average high temperature in September: 15.4°C

The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (0°C).

  • Average low temperature in September: 10.6°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).

Average pressure in September
Vallersvik, Sweden

Average pressure in September - Vallersvik, Sweden
  • Average pressure in September: 1013.4mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).

Average wind speed in September
Vallersvik, Sweden

Average wind speed in September - Vallersvik, Sweden
  • Average wind speed in September: 16.7km/h

The windiest month (with the highest average wind speed) is December (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14.2km/h).

Average humidity in September
Vallersvik, Sweden

Average humidity in September - Vallersvik, Sweden
  • Average humidity in September: 79%

The months with the highest relative humidity are January, February, November and December (86%).
The month with the lowest relative humidity is May (74%).

Average rainfall in September
Vallersvik, Sweden

Average rainfall in September - Vallersvik, Sweden
  • Average rainfall in September: 11mm

The wettest month (with the highest rainfall) is July (18mm).
The driest month (with the least rainfall) is April (5mm).

Average rainfall days in September
Vallersvik, Sweden

Average rainfall days in September - Vallersvik, Sweden
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (11.1 days).
The month with the least rainy days is February (4.6 days).

Average snowfall in September
Vallersvik, Sweden

Average snowfall in September - Vallersvik, Sweden
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (32mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Vallersvik, Sweden

Average snowfall days in September - Vallersvik, Sweden
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Vallersvik, Sweden

Average daylight in September / Average sunshine in September - Vallersvik, Sweden
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).

Average sunshine days in September
Vallersvik, Sweden

Average sunshine days in September - Vallersvik, Sweden
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is April (20.8 days).
The month with the least sunshine days is December (14.6 days).

Average UV index in September
Vallersvik, Sweden

Average UV index in September - Vallersvik, 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 and February (UV index 1).

Average cloud cover in September
Vallersvik, Sweden

Average cloud cover in September - Vallersvik, Sweden
  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Vallersvik, Sweden

Average visibility in September - Vallersvik, 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).

Vallersvik, Sweden

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