September weather forecastVidön, Sweden

September

Weather in September

September, the first month of the autumn in Vidön, is also a moderate month, with an average temperature fluctuating between 10.3°C (50.5°F) and 15.5°C (59.9°F).

Temperature

As August transitions into September, Vidön sees a gentle drop in the average high-temperature, transitioning from a comfortable 19.5°C (67.1°F) to a mild 15.5°C (59.9°F). The temperature in Vidön, Sweden, dips to an average of 10.3°C (50.5°F) during September nights.

Humidity

In September, the average relative humidity in Vidön is 78%.

Rainfall

In September, in Vidön, the rain falls for 14.1 days. Throughout September, 42mm (1.65") of precipitation is accumulated. In Vidön, during the entire year, the rain falls for 153.8 days and collects up to 483mm (19.02") of precipitation.

Snowfall

In Vidön, snow does not fall in June through September.

Daylight

In Vidön, the average length of the day in September is 12h and 50min.
On the first day of the month, sunrise is at 06:04 and sunset at 20:07. On the last day of September, sunrise is at 07:10 and sunset at 18:41 CEST.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in September in Vidön is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

In Vidön, in September, the average high-temperature is 15.5°C (59.9°F), and the average low-temperature is 10.3°C (50.5°F).

In September, the average relative humidity in Vidön, Sweden, is 78%.

In Vidön, during September, the rain falls for 14.1 days and regularly aggregates up to 42mm (1.65") of precipitation.

June through September are months without snowfall.

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

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

On the first day of September, sunrise is at 06:04 and sunset at 20:07. On the last day of the month, sunrise is at 07:10 and sunset at 18:41 CEST.

In Vidön, Sweden, the average sunshine duration in September is 8.1h.

In Vidön, Sweden, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents 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
Vidön, Sweden

  • Average high temperature in September: 15.5°C

The warmest month (with the highest average high temperature) is July (20.6°C).
The month with the lowest average high temperature is January (-0.2°C).

  • Average low temperature in September: 10.3°C

The month with the highest average low temperature is July (13.6°C).
The coldest month (with the lowest average low temperature) is February (-3.3°C).

Average pressure in September
Vidön, Sweden

  • Average pressure in September: 1013.2mbar

The months with the highest atmospheric pressure are April and May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1008mbar).

Average wind speed in September
Vidön, Sweden

  • Average wind speed in September: 15.9km/h

The windiest month (with the highest average wind speed) is December (18km/h).
The calmest month (with the lowest average wind speed) is July (13.4km/h).

Average humidity in September
Vidön, Sweden

  • Average humidity in September: 78%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are May and June (70%).

Average rainfall in September
Vidön, Sweden

  • Average rainfall in September: 42mm

The wettest months (with the highest rainfall) are July and August (57mm).
The driest month (with the least rainfall) is April (17mm).

Average rainfall days in September
Vidön, Sweden

  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in September
Vidön, Sweden

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (102mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Vidön, Sweden

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Vidön, 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 12min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).

Average sunshine days in September
Vidön, Sweden

  • Average sunshine days in September: 13.1 days

The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is November (10.3 days).

Average UV index in September
Vidön, Sweden

  • Average UV index in September: 4

The months with the highest UV index are May, June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in September
Vidön, Sweden

  • Average cloud cover in September: 43

The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is June (Cloud cover 39).

Average visibility in September
Vidön, 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 and February (8km).