September weather forecast
Kultanummi, Finland

September

Weather in September

September, the first month of the autumn in Kultanummi, is still a refreshing month, with temperature in the range of an average low of 10.2°C (50.4°F) and an average high of 15.3°C (59.5°F).

Temperature

Kultanummi's transition into September involves a gentle shift in temperature, receding from an enjoyable 19.7°C (67.5°F) in August to a moderate 15.3°C (59.5°F). During September, Kultanummi observes a consistent average nighttime temperature of 10.2°C (50.4°F).

Humidity

The average relative humidity in September is 79%.

Rainfall

In Kultanummi, in September, during 14.3 rainfall days, 40mm (1.57") of precipitation is typically accumulated. In Kultanummi, during the entire year, the rain falls for 134.6 days and collects up to 394mm (15.51") of precipitation.

Snowfall

June through September are months without snowfall in Kultanummi.

Daylight

In September, the average length of the day in Kultanummi is 12h and 53min.
On the first day of September in Kultanummi, sunrise is at 06:25 and sunset at 20:35. On the last day of the month, sunrise is at 07:35 and sunset at 19:05 EEST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

The average daily maximum UV index in September in Kultanummi is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are September temperatures in Kultanummi?
The high-temperature in Kultanummi, Finland, during September is 15.3°C (59.5°F) and the low-temperature is 10.2°C (50.4°F).
What is the average humidity in September in Kultanummi?
The average relative humidity in September is 79%.
How much does it rain in Kultanummi in September?
In Kultanummi, in September, it is raining for 14.3 days, with typically 40mm (1.57") of accumulated precipitation.
When it does not snow in Kultanummi?
June through September are months without snowfall.
Does it snow in Kultanummi in September?
In Kultanummi, Finland, in September, it doesn't snow. In October, it regularly snows.
How many hours of daylight does Kultanummi have in September?
In September, the average day length is 12h and 53min.
When is the sunrise / sunset in September in Kultanummi?
On the first day of September in Kultanummi, sunrise is at 06:25 and sunset at 20:35. On the last day of the month, sunrise is at 07:35 and sunset at 19:05 EEST.
How many hours of sunshine does Kultanummi have in September?
The average sunshine duration in September is 7.6h.
What is the UV index intensity in September in Kultanummi?
The average daily maximum UV index in September in Kultanummi is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Kultanummi, Finland
  • Average high temperature in September: 15.3°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 (-1.9°C).

  • Average low temperature in September: 10.2°C

The months with the highest average low temperature are July and August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-5.6°C).

Average pressure in September
Kultanummi, Finland
  • Average pressure in September: 1013mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).

Average wind speed in September
Kultanummi, Finland
  • Average wind speed in September: 15.9km/h

The windiest month (with the highest average wind speed) is December (20.4km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).

Average humidity in September
Kultanummi, Finland
  • Average humidity in September: 79%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).

Average rainfall in September
Kultanummi, Finland
  • Average rainfall in September: 40mm

The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (19mm).

Average rainfall days in September
Kultanummi, Finland
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in September
Kultanummi, Finland
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (103mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Kultanummi, Finland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Kultanummi, Finland
  • Average daylight in September: 12h and 5min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in September: 7h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).

Average sunshine days in September
Kultanummi, Finland
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is December (9.6 days).

Average UV index in September
Kultanummi, Finland
  • Average UV index in September: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in September
Kultanummi, Finland
  • Average cloud cover in September: 44

The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in September
Kultanummi, Finland
  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).

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