September weather forecastKisko, Finland

September

Weather in September

The first month of the autumn, September, is still a mild month in Kisko, Finland, with an average temperature fluctuating between 15.1°C (59.2°F) and 8.5°C (47.3°F).

Temperature

Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from an agreeable 20.1°C (68.2°F) to a mild 15.1°C (59.2°F). An average low-temperature of 8.5°C (47.3°F) marks the nights in Kisko, Finland throughout September.

Humidity

The average relative humidity in September in Kisko is 83%.

Rainfall

In September, in Kisko, the rain falls for 13.1 days. Throughout September, 24mm (0.94") of precipitation is accumulated. Throughout the year, in Kisko, Finland, there are 122.6 rainfall days, and 277mm (10.91") of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 52min.
On the first day of September in Kisko, sunrise is at 06:21 and sunset at 20:30. On the last day of the month, sunrise is at 07:30 and sunset at 19:01 EEST.

Sunshine

The average sunshine in September is 7.3h.

UV index

In Kisko, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: During September, 3 as the daily maximum UV index converts into the following advice:
Guard yourself - Avoiding sunburn is suggested. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

In Kisko, 15.1°C (59.2°F) is the average high-temperature and 8.5°C (47.3°F) is the average low-temperature during September.

The average relative humidity in September in Kisko, Finland, is 83%.

In Kisko, Finland, during September, the rain falls for 13.1 days and regularly aggregates up to 24mm (0.94") of precipitation.

In Kisko, Finland, snow does not fall in June through September.

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

The average day length in September in Kisko is 12h and 52min.

On the first day of September, sunrise is at 06:21 and sunset at 20:30. On the last day of the month, sunrise is at 07:30 and sunset at 19:01 EEST.

In Kisko, Finland, the average sunshine duration in September is 7.3h.

The average daily maximum UV index in September in Kisko, Finland, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Kisko, Finland

  • Average high temperature in September: 15.1°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-3.2°C).

  • Average low temperature in September: 8.5°C

The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).

Average pressure in September
Kisko, Finland

  • Average pressure in September: 1013.2mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).

Average wind speed in September
Kisko, Finland

  • Average wind speed in September: 12km/h

The windiest month (with the highest average wind speed) is December (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).

Average humidity in September
Kisko, Finland

  • Average humidity in September: 83%

The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).

Average rainfall in September
Kisko, Finland

  • Average rainfall in September: 24mm

The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is April (14mm).

Average rainfall days in September
Kisko, Finland

  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in September
Kisko, Finland

  • Average snowfall in September: 0mm

The month with the highest snowfall is December (91mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Kisko, Finland

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 54min

The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

Average sunshine days in September
Kisko, Finland

  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.3 days).

Average UV index in September
Kisko, 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, November and December (UV index 1).

Average cloud cover in September
Kisko, Finland

  • Average cloud cover in September: 49

The months with the most cloud cover are February and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in September
Kisko, Finland

  • Average visibility in September: 9km

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