September weather forecast and climate
Valdemarsvik, Sweden

September, the first month of the autumn, in Valdemarsvik, is still a comfortable month, with temperature in the range of an average low of 10.6°C (51.1°F) and an average high of 16.4°C (61.5°F).

Temperature

In Valdemarsvik, the average high-temperature slightly decreases, from an agreeable 20.4°C (68.7°F) in August, to an enjoyable 16.4°C (61.5°F). The average low-temperature, is 10.6°C (51.1°F).

Humidity

The average relative humidity in September is 78%.

Rainfall

In Valdemarsvik, Sweden, during September, the rain falls for 10.4 days and regularly aggregates up to 23mm (0.91") of precipitation. In Valdemarsvik, Sweden, during the entire year, the rain falls for 129.5 days and collects up to 306mm (12.05") of precipitation.

Snowfall

June through September are months without snowfall in Valdemarsvik.

Daylight

The average length of the day in Valdemarsvik is 12.8h.

Sunshine

In September, the average sunshine in Valdemarsvik is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Valdemarsvik?

The average high-temperature, in September, is 16.4°C (61.5°F), while the average low-temperature is 10.6°C (51.1°F).

What is the average humidity in September in Valdemarsvik?

In Valdemarsvik, the average relative humidity in September is 78%.

How much does it rain in Valdemarsvik in September?

In Valdemarsvik, in September, during 10.4 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

Does it snow in Valdemarsvik in September?

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

When it does not snow in Valdemarsvik?

In Valdemarsvik snow does not fall in June through September.

How many hours of daylight does Valdemarsvik have in September?

The average length of the day in September in Valdemarsvik, Sweden, is 12.8h.

How many hours of sunshine does Valdemarsvik have in September?

The average sunshine in September in Valdemarsvik is 8.5h.

How high is the UV index in September in Valdemarsvik?

In September, the average daily maximum UV index in Valdemarsvik is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Valdemarsvik, Sweden
  • Average high temperature in September: 16.4°C

The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (0.7°C).

  • Average low temperature in September: 10.6°C

The month with the highest average low temperature is July (13.7°C).
The coldest months (with the lowest average low temperature) are January and February (-2.3°C).

Average pressure in September - Valdemarsvik, Sweden
  • Average pressure in September: 1014mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).

Average wind speed in September - Valdemarsvik, Sweden
  • Average wind speed in September: 16km/h

The windiest month (with the highest average wind speed) is December (18.4km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).

Average humidity in September - Valdemarsvik, Sweden
  • Average humidity in September: 78%

Months with the highest relative humidity are January, February, November and December (87%).
Months with the lowest relative humidity are May and June (72%).

Average rainfall in September - Valdemarsvik, Sweden
  • Average rainfall in September: 23mm

The wettest months (with the highest rainfall) are July and August (40mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in September - Valdemarsvik, Sweden
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is August (14.2 days).
The month with the least rainy days is February (5.8 days).

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

The month with the highest snowfall is February (67mm).
Months with the least snowfall are June, July, August and September (0mm).

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

Months with the highest number of snowfall days are January and February (10.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Valdemarsvik, Sweden
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 18.1h).
The month with the shortest days is December (Average daylight: 6.5h).

  • Average sunshine in September: 8.5h

The month with the most sunshine is June (Average sunshine: 12.3h).
The month with the least sunshine is February (Average sunshine: 3.4h).

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

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (12.4 days).

Average UV index in September - Valdemarsvik, Sweden
  • Average UV index in September: 4

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 - Valdemarsvik, Sweden
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September - Valdemarsvik, Sweden
  • Average visibility in September: 10km

Months with the highest visibility are April, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, May, November and December (9km).