September weather forecast
Ortviken, Sweden

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Ortviken, Sweden, with an average temperature varying between 7.3°C (45.1°F) and 14°C (57.2°F).

Temperature

In Ortviken, the average high-temperature in September slightly decreases from an enjoyable 18.7°C (65.7°F) in August to a moderate 14°C (57.2°F). An average low-temperature of 7.3°C (45.1°F) is expected in Ortviken during September.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Ortviken, Sweden, in September, during 11.7 rainfall days, 32mm (1.26") of precipitation is typically accumulated. In Ortviken, during the entire year, the rain falls for 117.2 days and collects up to 384mm (15.12") of precipitation.

Snowfall

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

Daylight

In Ortviken, the average length of the day in September is 12h and 57min.
On the first day of the month, sunrise is at 05:40 and sunset at 20:00. On the last day of September, in Ortviken, sunrise is at 06:56 and sunset at 18:24 CEST.

Sunshine

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

UV index

In Ortviken, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the temperature in September in Ortviken?
The average high-temperature and low-temperature in Ortviken during September are 14°C (57.2°F) and 7.3°C (45.1°F) respectively.
What is the average humidity in September in Ortviken?
In September, the average relative humidity in Ortviken, Sweden, is 79%.
How much does it rain in Ortviken in September?
In Ortviken, in September, it is raining for 11.7 days, with typically 32mm (1.26") of accumulated precipitation.
When it does not snow in Ortviken?
In Ortviken, snow does not fall in June through September.
Does it snow in Ortviken in September?
In Ortviken, Sweden, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Ortviken have in September?
The average day length in September is 12h and 57min.
When are sunrise and sunset in September in Ortviken?
On the first day of September, sunrise is at 05:40 and sunset at 20:00. On the last day of the month, sunrise is at 06:56 and sunset at 18:24 CEST.
How long on average sun shines in September in Ortviken?
In Ortviken, the average sunshine duration in September is 7.6h.
What is the UV index reading in September in Ortviken?
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Ortviken, Sweden
  • Average high temperature in September: 14°C

The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-3°C).

  • Average low temperature in September: 7.3°C

The month with the highest average low temperature is July (11.4°C).
The coldest month (with the lowest average low temperature) is February (-6.9°C).

Average pressure in September
Ortviken, Sweden
  • Average pressure in September: 1011.9mbar

The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.9mbar).

Average wind speed in September
Ortviken, Sweden
  • Average wind speed in September: 10.5km/h

The windiest month (with the highest average wind speed) is January (11.9km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).

Average humidity in September
Ortviken, Sweden
  • Average humidity in September: 79%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (66%).

Average rainfall in September
Ortviken, Sweden
  • Average rainfall in September: 32mm

The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in September
Ortviken, Sweden
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in September
Ortviken, Sweden
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (217mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Ortviken, Sweden
  • Average snowfall days in September: 0 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, August and September (0 days).

Average daylight in September /
Average sunshine in September
Ortviken, Sweden
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 19h and 48min).
The month with the shortest days is December (Average daylight: 5h and 12min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

Average sunshine days in September
Ortviken, Sweden
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in September
Ortviken, 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
Ortviken, Sweden
  • Average cloud cover in September: 49

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in September
Ortviken, Sweden
  • Average visibility in September: 8km

The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February and March (7km).

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