September weather forecastSeskarö, Sweden

September

Weather in September

The first month of the autumn, September, is still a cool month in Seskarö, Sweden, with an average temperature fluctuating between 7.8°C (46°F) and 12.3°C (54.1°F).

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to a fresh 12.3°C (54.1°F) from August's refreshing 16.7°C (62.1°F). Seskarö encounters an average temperature dip to a frosty 7.8°C (46°F) throughout September, subtly lower than its daytime maximum.

Humidity

The average relative humidity in September is 82%.

Rainfall

In Seskarö, during September, the rain falls for 9.6 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, in Seskarö, there are 94 rainfall days, and 347mm (13.66") of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Seskarö. September is the first month it typically snows in Seskarö, Sweden. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 89.7 snowfall days, and 919mm (36.18") of snow is accumulated.

Daylight

In September, the average length of the day in Seskarö, Sweden, is 13h and 6min.
On the first day of September in Seskarö, sunrise is at 05:03 and sunset at 19:46. On the last day of the month, sunrise is at 06:33 and sunset at 17:55 CEST.

Sunshine

In September, the average sunshine in Seskarö is 6.9h.

UV index

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

An average high-temperature, in September, in Seskarö, is 12.3°C (54.1°F) and the average low-temperature is 7.8°C (46°F).

The average relative humidity in September in Seskarö is 82%.

In Seskarö, during September, the rain falls for 9.6 days and regularly aggregates up to 26mm (1.02") of precipitation.

September is the first month it typically snows in Seskarö. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow.

The average day length in September is 13h and 6min.

On the first day of September in Seskarö, Sweden, sunrise is at 05:03 and sunset at 19:46. On the last day of the month, sunrise is at 06:33 and sunset at 17:55 CEST.

The average sunshine duration in September is 6.9h.

In September, the average daily maximum UV index in Seskarö, Sweden, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Seskarö, Sweden

  • Average high temperature in September: 12.3°C

The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-6.3°C).

  • Average low temperature in September: 7.8°C

The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).

Average pressure in September
Seskarö, Sweden

  • Average pressure in September: 1010.9mbar

The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).

Average wind speed in September
Seskarö, Sweden

  • Average wind speed in September: 15.3km/h

The windiest months (with the highest average wind speed) are November and December (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).

Average humidity in September
Seskarö, Sweden

  • Average humidity in September: 82%

The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (70%).

Average rainfall in September
Seskarö, Sweden

  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in September
Seskarö, Sweden

  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is February (3.1 days).

Average snowfall in September
Seskarö, Sweden

  • Average snowfall in September: 1mm

The month with the highest snowfall is March (203mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days in September
Seskarö, Sweden

  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are July and August (0 days).

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

  • Average daylight in September: 13h and 6min

The month with the longest days is July (Average daylight: 20h and 36min).
The month with the shortest days is December (Average daylight: 3h and 24min).

  • Average sunshine in September: 6h and 54min

The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).

Average sunshine days in September
Seskarö, Sweden

  • Average sunshine days in September: 19 days

The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in September
Seskarö, 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, March, November and December (UV index 1).

Average cloud cover in September
Seskarö, Sweden

  • Average cloud cover in September: 51

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 40).

Average visibility in September
Seskarö, Sweden

  • Average visibility in September: 9km

The months with the highest visibility are June, July and August (10km).
The month with the lowest visibility is January (6km).