September weather forecast
Kouvola, Finland

September

Weather in September

September ushers in the colourful season of Autum in Kouvola, bringing about considerable changes in the weather patterns. High temperatures decline to 58.8°F, setting the stage for the forthcoming months. As daylight hours reduce, local flora paints the city in exquisite hues, making it a beautiful sight despite shorter days. It's important to have an umbrella handy, as repeated showers make their appearance. With a gradual return of colder temperatures, we prepare to welcome October and the deeper embrace of Autumn.

Temperature

Kouvola experiences a temperature shift at the start of September, with average high-temperatures adjusting from a pleasant 68.7°F in August to a refreshing 58.8°F. Kouvola's average low-temperature in September is measured at a chilly 46.9°F.

Humidity

In Kouvola, the average relative humidity in September is 82%.

Rainfall

In Kouvola, in September, it is raining for 13.2 days, with typically 1.26" of accumulated precipitation. In Kouvola, during the entire year, the rain falls for 131.9 days and collects up to 17.76" of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 53min.
On the first day of the month, sunrise is at 06:07 and sunset at 20:18. On the last day of September, in Kouvola, Finland, sunrise is at 07:18 and sunset at 18:47 EEST.

Sunshine

In Kouvola, the average sunshine in September is 7.1h.

UV index

In Kouvola, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 3 in September leads to these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To protect against the Sun's most potent rays, avoid direct exposure around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What are September temperatures in Kouvola?
In September, in Kouvola, the average high-temperature is 58.8°F, and the average low-temperature is 46.9°F.
What is the average humidity in September in Kouvola?
In Kouvola, Finland, the average relative humidity in September is 82%.
How many days does it rain in September in Kouvola?
In Kouvola, in September, during 13.2 rainfall days, 1.26" of precipitation is typically accumulated.
When it does not snow in Kouvola?
June through September are months without snowfall in Kouvola, Finland.
Does it snow in Kouvola in September?
In Kouvola, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Kouvola?
In Kouvola, Finland, the average day length in September is 12h and 53min.
When is the sunrise / sunset in September in Kouvola?
On the first day of September in Kouvola, Finland, sunrise is at 06:07 and sunset at 20:18. On the last day of the month, sunrise is at 07:18 and sunset at 18:47 EEST.
How long on average sun shines in September in Kouvola?
In September, the average sunshine duration in Kouvola is 7.1h.
What is the UV index reading in September in Kouvola?
In Kouvola, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
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 - Kouvola, Finland
Average temperature in September
Kouvola, Finland
  • Average high temperature in September: 58.8°F

The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in September: 46.9°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in September - Kouvola, Finland
Average pressure in September
Kouvola, Finland
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is May (29.97"Hg).
The month with the lowest atmospheric pressure is December (29.79"Hg).

Average wind speed in September - Kouvola, Finland
Average wind speed in September
Kouvola, Finland
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is December (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September - Kouvola, Finland
Average humidity in September
Kouvola, Finland
  • Average humidity in September: 82%

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (68%).

Average rainfall in September - Kouvola, Finland
Average rainfall in September
Kouvola, Finland
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is April (0.98").

Average rainfall days in September - Kouvola, Finland
Average rainfall days in September
Kouvola, Finland
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is February (3.5 days).

Average snowfall in September - Kouvola, Finland
Average snowfall in September
Kouvola, Finland
  • Average snowfall in September: 0"

The month with the highest snowfall is February (9.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Kouvola, Finland
Average snowfall days in September
Kouvola, Finland
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 48min).

  • Average sunshine in September: 7h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).

Average sunshine days in September - Kouvola, Finland
Average sunshine days in September
Kouvola, Finland
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is May (17.3 days).
The month with the least sunshine days is December (5.5 days).

Average UV index in September - Kouvola, Finland
Average UV index in September
Kouvola, 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 - Kouvola, Finland
Average cloud cover in September
Kouvola, Finland
  • Average cloud cover in September: 52

The months with the most cloud cover are January and February (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in September - Kouvola, Finland
Average visibility in September
Kouvola, Finland
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

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