September weather forecast and climate
Polcirkeln, Sweden

Weather in September

The first month of the autumn, September, is also a fresh month in Polcirkeln, Sweden, with average temperature varying between 4.8°C (40.6°F) and 11.5°C (52.7°F).

Temperature

In September, the average high-temperature drops, from a comfortable 17.3°C (63.1°F) in August, to a fresh 11.5°C (52.7°F). The average low-temperature, in Polcirkeln, Sweden, is 4.8°C (40.6°F).

Humidity

In Polcirkeln, the average relative humidity in September is 83%.

Rainfall

In September, the rain falls for 13.7 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, in Polcirkeln, there are 108.5 rainfall days, and 473mm (18.62") of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Polcirkeln. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 9mm (0.35") of snow. In Polcirkeln, during the entire year, snow falls for 123.4 days, and aggregates up to 1604mm (63.15") of snow.

Daylight

In Polcirkeln, the average length of the day is 13.1h.

Sunshine

In September, the average sunshine in Polcirkeln is 6.5h.

UV index

The average daily maximum UV index in Polcirkeln is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in September interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Polcirkeln?

In September, the average high-temperature is 11.5°C (52.7°F), and the average low-temperature is 4.8°C (40.6°F).

What is the average humidity in September in Polcirkeln?

In September, the average relative humidity is 83%.

How much does it rain in Polcirkeln in September?

In Polcirkeln, during September, the rain falls for 13.7 days and regularly aggregates up to 41mm (1.61") of precipitation.

When does it start snowing in Polcirkeln?

September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 9mm (0.35") of snow.

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

The average length of the day in September is 13.1h.

How many hours of sunshine does Polcirkeln have in September?

The average sunshine in September is 6.5h.

How high is the UV index in September in Polcirkeln?

The average daily maximum UV index in September in Polcirkeln, Sweden, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Polcirkeln, Sweden

Average temperature in September - Polcirkeln, Sweden
  • Average high temperature in September: 11.5°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 (-8.4°C).

  • Average low temperature in September: 4.8°C

The month with the highest average low temperature is July (10.6°C).
The coldest month (with the lowest average low temperature) is January (-14°C).

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Average pressure in September
Polcirkeln, Sweden

Average pressure in September - Polcirkeln, Sweden
  • Average pressure in September: 1010.7mbar

The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).

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Average wind speed in September
Polcirkeln, Sweden

Average wind speed in September - Polcirkeln, Sweden
  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is March (11.1km/h).
The calmest month (with the lowest average wind speed) is November (9.2km/h).

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Average humidity in September
Polcirkeln, Sweden

Average humidity in September - Polcirkeln, Sweden
  • Average humidity in September: 83%

Months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is June (64%).

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Average rainfall in September
Polcirkeln, Sweden

Average rainfall in September - Polcirkeln, Sweden
  • Average rainfall in September: 41mm

The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (25mm).

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Average rainfall days in September
Polcirkeln, Sweden

Average rainfall days in September - Polcirkeln, Sweden
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (1.9 days).

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Average snowfall in September
Polcirkeln, Sweden

Average snowfall in September - Polcirkeln, Sweden
  • Average snowfall in September: 9mm

The month with the highest snowfall is December (333mm).
Months with the least snowfall are June, July and August (0mm).

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Average snowfall days in September
Polcirkeln, Sweden

Average snowfall days in September - Polcirkeln, Sweden
  • Average snowfall days in September: 0.8 days

The month with the highest number of snowfall days is January (19.9 days).
Months with the least snowfall days are July and August (0 days).

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

Average daylight in September / Average sunshine in September - Polcirkeln, Sweden
  • Average daylight in September: 13.1h

The month with the longest days is June (Average daylight: 23.8h).
The month with the shortest days is December (Average daylight: 2.6h).

  • Average sunshine in September: 6.5h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is December (Average sunshine: 1.3h).

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Average sunshine days in September
Polcirkeln, Sweden

Average sunshine days in September - Polcirkeln, Sweden
  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is April (9.5 days).

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Average UV index in September
Polcirkeln, Sweden

Average UV index in September - Polcirkeln, Sweden
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 1).

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Average cloud cover in September
Polcirkeln, Sweden

Average cloud cover in September - Polcirkeln, Sweden
  • Average cloud cover in September: 57

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 48).

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Average visibility in September
Polcirkeln, Sweden

Average visibility in September - Polcirkeln, Sweden
  • Average visibility in September: 8km

Months with the highest visibility are May, June, July and August (9km).
Months with the lowest visibility are January, February, March and December (5km).

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