September weather forecastByske, Sweden

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Byske, Sweden, with temperature in the range of an average low of 7.4°C (45.3°F) and an average high of 13.3°C (55.9°F).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a comfortable 18.2°C (64.8°F) in August to a moderate 13.3°C (55.9°F). September nights experience a consistent temperature drop to a frosty 7.4°C (45.3°F).

Humidity

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

Rainfall

In September, the rain falls for 10.8 days. Throughout September, 20mm (0.79") of precipitation is accumulated. In Byske, Sweden, during the entire year, the rain falls for 99.9 days and collects up to 252mm (9.92") of precipitation.

Snowfall

In Byske, Sweden, snow does not fall in June through September.

Daylight

In September, the average length of the day in Byske, Sweden, is 13h and 4min.
On the first day of September in Byske, sunrise is at 05:16 and sunset at 19:53. On the last day of the month, sunrise is at 06:43 and sunset at 18:06 CEST.

Sunshine

In Byske, the average sunshine in September is 7.6h.

UV index

In Byske, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 3 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

In Byske, in September, the average high-temperature is 13.3°C (55.9°F), and the average low-temperature is 7.4°C (45.3°F).

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

In Byske, during September, the rain falls for 10.8 days and regularly aggregates up to 20mm (0.79") of precipitation.

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

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

In September, the average day length in Byske, Sweden, is 13h and 4min.

In September, on the first day of the month, sunrise is at 05:16 and sunset at 19:53. On the last day of the month, in Byske, Sweden, sunrise is at 06:43 and sunset at 18:06 CEST.

The average sunshine duration in September in Byske, Sweden, is 7.6h.

In September, the average daily maximum UV index in Byske, Sweden, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
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
Byske, Sweden

  • Average high temperature in September: 13.3°C

The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in September: 7.4°C

The month with the highest average low temperature is July (12°C).
The coldest month (with the lowest average low temperature) is February (-9.3°C).

Average pressure in September
Byske, Sweden

  • Average pressure in September: 1011.2mbar

The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1005mbar).

Average wind speed in September
Byske, Sweden

  • Average wind speed in September: 12.6km/h

The windiest month (with the highest average wind speed) is December (14.6km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).

Average humidity in September
Byske, Sweden

  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is June (65%).

Average rainfall in September
Byske, Sweden

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is July (30mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in September
Byske, Sweden

  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is July (11.9 days).
The month with the least rainy days is January (3 days).

Average snowfall in September
Byske, Sweden

  • Average snowfall in September: 0mm

The months with the highest snowfall are January and March (107mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Byske, Sweden

  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

  • Average daylight in September: 13h and 6min

The month with the longest days is June (Average daylight: 21h and 36min).
The month with the shortest days is December (Average daylight: 3h and 54min).

  • Average sunshine in September: 7h and 36min

The month with the most sunshine is July (Average sunshine: 12h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).

Average sunshine days in September
Byske, Sweden

  • Average sunshine days in September: 17.1 days

The months with the most sunshine days are June and October (17.8 days).
The month with the least sunshine days is December (12.9 days).

Average UV index in September
Byske, Sweden

  • Average UV index in September: 3

The months with the highest UV index are June and 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
Byske, Sweden

  • Average cloud cover in September: 46

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in September
Byske, Sweden

  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (7km).