September weather forecast
Reposaari, Finland

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Weather in September

The first month of the autumn, September, is still a mild month in Reposaari, Finland, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 14.9°C (58.8°F).

Temperature

With the onset of September, Reposaari's climate undergoes a slight change as the average high-temperature moves from a refreshing 19.8°C (67.6°F) in August to a mild 14.9°C (58.8°F). The average temperature in Reposaari drops to a chilly 9.7°C (49.5°F) during the night in the month of September.

Humidity

The average relative humidity in September is 79%.

Rainfall

In September, in Reposaari, the rain falls for 15.9 days. Throughout September, 44mm (1.73") of precipitation is accumulated. Throughout the year, in Reposaari, Finland, there are 154.3 rainfall days, and 508mm (20") of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day in Reposaari is 12h and 55min.
On the first day of September, sunrise is at 06:26 and sunset at 20:41. On the last day of the month, sunrise is at 07:39 and sunset at 19:08 EEST.

Sunshine

In September, the average sunshine is 7.4h.

UV index

In Reposaari, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 3 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

What is the temperature in September in Reposaari?

The average high-temperature and low-temperature in Reposaari during September are 14.9°C (58.8°F) and 9.7°C (49.5°F) respectively.

What is the average humidity in September in Reposaari?

The average relative humidity in September is 79%.

How many days does it rain in September in Reposaari?

In Reposaari, during September, the rain falls for 15.9 days and regularly aggregates up to 44mm (1.73") of precipitation.

When it does not snow in Reposaari?

June through September are months without snowfall.

Does it snow in Reposaari in September?

In Reposaari, Finland, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Reposaari have in September?

The average day length in September in Reposaari is 12h and 55min.

What time are sunrise and sunset in September in Reposaari?

In September, on the first day of the month, sunrise is at 06:26 and sunset at 20:41. On the last day of the month, in Reposaari, sunrise is at 07:39 and sunset at 19:08 EEST.

How long on average sun shines in September in Reposaari?

In Reposaari, the average sunshine duration in September is 7.4h.

What is the UV index reading in September in Reposaari?

In Reposaari, Finland, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
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
Reposaari, Finland

Average temperature in September - Reposaari, Finland
  • Average high temperature in September: 14.9°C

The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in September: 9.7°C

The month with the highest average low temperature is July (13.4°C).
The coldest month (with the lowest average low temperature) is January (-6°C).

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Average pressure in September
Reposaari, Finland

Average pressure in September - Reposaari, Finland
  • Average pressure in September: 1012.6mbar

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).

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Average wind speed in September
Reposaari, Finland

Average wind speed in September - Reposaari, Finland
  • Average wind speed in September: 14.2km/h

The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).

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Average humidity in September
Reposaari, Finland

Average humidity in September - Reposaari, Finland
  • Average humidity in September: 79%

The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).

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Average rainfall in September
Reposaari, Finland

Average rainfall in September - Reposaari, Finland
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is July (63mm).
The driest months (with the least rainfall) are March and April (31mm).

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Average rainfall days in September
Reposaari, Finland

Average rainfall days in September - Reposaari, Finland
  • Average rainfall days in September: 15.9 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in September
Reposaari, Finland

Average snowfall in September - Reposaari, Finland
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (163mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in September
Reposaari, Finland

Average snowfall days in September - Reposaari, Finland
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Reposaari, Finland

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

The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).

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Average sunshine days in September
Reposaari, Finland

Average sunshine days in September - Reposaari, Finland
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (8.5 days).

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Average UV index in September
Reposaari, Finland

Average UV index in September - Reposaari, Finland
  • 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, March and December (UV index 1).

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Average cloud cover in September
Reposaari, Finland

Average cloud cover in September - Reposaari, Finland
  • Average cloud cover in September: 47

The months with the most cloud cover are January, February and December (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 38).

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Average visibility in September
Reposaari, Finland

Average visibility in September - Reposaari, Finland
  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
The month with the lowest visibility is February (7km).

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Reposaari, Finland

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