September weather forecastStureby, Sweden

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Stureby, Sweden, with an average temperature ranging between max 15.5°C (59.9°F) and min 10.5°C (50.9°F).

Temperature

The average high-temperature shows a slight dip in September, from August's enjoyable 19.8°C (67.6°F) to a still refreshing 15.5°C (59.9°F). The nighttime temperature in Stureby, Sweden, in September experiences a minor dip, averaging a fresh 10.5°C (50.9°F).

Humidity

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

Rainfall

In Stureby, in September, it is raining for 11.8 days, with typically 20mm (0.79") of accumulated precipitation. Throughout the year, in Stureby, there are 132.1 rainfall days, and 289mm (11.38") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 50min.
On the first day of September, sunrise is at 05:45 and sunset at 19:49. On the last day of the month, sunrise is at 06:51 and sunset at 18:23 CEST.

Sunshine

In Stureby, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 3 during September translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

In Stureby, in September, the average high-temperature is 15.5°C (59.9°F), and the average low-temperature is 10.5°C (50.9°F).

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

In Stureby, Sweden, in September, it is raining for 11.8 days, with typically 20mm (0.79") of accumulated precipitation.

June through September are months without snowfall.

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

In September, the average day length is 12h and 50min.

On the first day of September in Stureby, Sweden, sunrise is at 05:45 and sunset at 19:49. On the last day of the month, sunrise is at 06:51 and sunset at 18:23 CEST.

The average sunshine duration in September in Stureby is 8.4h.

In Stureby, Sweden, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from 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
Stureby, Sweden

  • Average high temperature in September: 15.5°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-0.1°C).

  • Average low temperature in September: 10.5°C

The month with the highest average low temperature is July (13.9°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average pressure in September
Stureby, Sweden

  • Average pressure in September: 1013.4mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).

Average wind speed in September
Stureby, Sweden

  • Average wind speed in September: 16km/h

The windiest month (with the highest average wind speed) is December (20.9km/h).
The calmest month (with the lowest average wind speed) is July (13.8km/h).

Average humidity in September
Stureby, Sweden

  • Average humidity in September: 79%

The months with the highest relative humidity are January, February, November and December (86%).
The month with the lowest relative humidity is May (73%).

Average rainfall in September
Stureby, Sweden

  • Average rainfall in September: 20mm

The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (13mm).

Average rainfall days in September
Stureby, Sweden

  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in September
Stureby, Sweden

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (82mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Stureby, Sweden

  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 48min

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

  • Average sunshine in September: 8h and 24min

The month with the most sunshine is June (Average sunshine: 12h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).

Average sunshine days in September
Stureby, Sweden

  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is December (11 days).

Average UV index in September
Stureby, 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 and February (UV index 1).

Average cloud cover in September
Stureby, Sweden

  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Stureby, Sweden

  • Average visibility in September: 10km

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