September weather forecastJärpås, Sweden

September

Weather in September

The first month of the autumn, September, is still a mild month in Järpås, Sweden, with an average temperature ranging between max 15.8°C (60.4°F) and min 9.5°C (49.1°F).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from an enjoyable 19.8°C (67.6°F) in August to a mild 15.8°C (60.4°F). In September, Järpås's temperature tends to fall to an average low of 9.5°C (49.1°F) during the night.

Humidity

In September, the average relative humidity in Järpås, Sweden, is 81%.

Rainfall

In Järpås, in September, it is raining for 11.5 days, with typically 19mm (0.75") of accumulated precipitation. In Järpås, Sweden, during the entire year, the rain falls for 133 days and collects up to 274mm (10.79") of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 49min.
On the first day of the month, sunrise is at 06:08 and sunset at 20:07. On the last day of September, in Järpås, sunrise is at 07:11 and sunset at 18:44 CEST.

Sunshine

In Järpås, the average sunshine in September is 7.7h.

UV index

In Järpås, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 4 in September leads to these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

The high-temperature in Järpås during September is 15.8°C (60.4°F) and the low-temperature is 9.5°C (49.1°F).

The average relative humidity in September in Järpås is 81%.

In Järpås, during September, the rain falls for 11.5 days and regularly aggregates up to 19mm (0.75") of precipitation.

June through September are months without snowfall.

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

In September, the average day length in Järpås is 12h and 49min.

In September, on the first day of the month, sunrise is at 06:08 and sunset at 20:07. On the last day of the month, in Järpås, sunrise is at 07:11 and sunset at 18:44 CEST.

The average sunshine duration in September in Järpås, Sweden, is 7.7h.

In September, the average daily maximum UV index in Järpås is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Järpås, Sweden

  • Average high temperature in September: 15.8°C

The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (0.3°C).

  • Average low temperature in September: 9.5°C

The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is February (-3.1°C).

Average pressure in September
Järpås, Sweden

  • Average pressure in September: 1013.6mbar

The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).

Average wind speed in September
Järpås, Sweden

  • Average wind speed in September: 14.5km/h

The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).

Average humidity in September
Järpås, Sweden

  • Average humidity in September: 81%

The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Järpås, Sweden

  • Average rainfall in September: 19mm

The wettest month (with the highest rainfall) is June (38mm).
The driest month (with the least rainfall) is April (12mm).

Average rainfall days in September
Järpås, Sweden

  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in September
Järpås, Sweden

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (44mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Järpås, Sweden

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 48min

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

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

Average sunshine days in September
Järpås, Sweden

  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is April (17.3 days).
The month with the least sunshine days is December (11.4 days).

Average UV index in September
Järpås, Sweden

  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Järpås, Sweden

  • Average cloud cover in September: 47

The months with the most cloud cover are February and December (Cloud cover 66).
The months with the least cloud cover are April, May, June and July (Cloud cover 42).

Average visibility in September
Järpås, Sweden

  • Average visibility in September: 9km

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is February (8km).