September weather forecast
Pirkkala, Finland

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Pirkkala, Finland, with an average temperature varying between 14.6°C (58.3°F) and 7.5°C (45.5°F).

Temperature

In Pirkkala, the average high-temperature in September drops from a pleasant 20.4°C (68.7°F) in August to a moderate 14.6°C (58.3°F). Pirkkala observes an average low-temperature of 7.5°C (45.5°F) during September.

Humidity

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

Rainfall

In Pirkkala, during September, the rain falls for 11.4 days and regularly aggregates up to 17mm (0.67") of precipitation. In Pirkkala, during the entire year, the rain falls for 114.5 days and collects up to 256mm (10.08") of precipitation.

Snowfall

June through September are months without snowfall in Pirkkala.

Daylight

In September, the average length of the day is 12h and 55min.
On the first day of the month, sunrise is at 06:17 and sunset at 20:32. On the last day of September, in Pirkkala, Finland, sunrise is at 07:30 and sunset at 18:59 EEST.

Sunshine

In Pirkkala, the average sunshine in September is 6.7h.

UV index

The average daily maximum UV index in September in Pirkkala is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 3 in September transforms into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

What are the temperatures in Pirkkala in September?
In September, in Pirkkala, the average high-temperature is 14.6°C (58.3°F), and the average low-temperature is 7.5°C (45.5°F).
What is the average humidity in September in Pirkkala?
In Pirkkala, the average relative humidity in September is 82%.
How many days does it rain in September in Pirkkala?
In Pirkkala, in September, it is raining for 11.4 days, with typically 17mm (0.67") of accumulated precipitation.
When it does not snow in Pirkkala?
In Pirkkala, snow does not fall in June through September.
Does it snow in Pirkkala in September?
In Pirkkala, Finland, in September, it doesn't snow. In October, it regularly snows.
What is the average length of the day in September in Pirkkala?
In September, the average day length in Pirkkala, Finland, is 12h and 55min.
When is the sunrise / sunset in September in Pirkkala?
On the first day of September in Pirkkala, Finland, sunrise is at 06:17 and sunset at 20:32. On the last day of the month, sunrise is at 07:30 and sunset at 18:59 EEST.
How long on average sun shines in September in Pirkkala?
In September, the average sunshine duration is 6.7h.
What is the UV index reading in September in Pirkkala?
In Pirkkala, 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 the Sun's 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
Pirkkala, Finland
  • Average high temperature in September: 14.6°C

The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-4.3°C).

  • Average low temperature in September: 7.5°C

The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is January (-8.4°C).

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

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).

Average wind speed in September
Pirkkala, Finland
  • Average wind speed in September: 10.9km/h

The windiest month (with the highest average wind speed) is December (12.6km/h).
The calmest month (with the lowest average wind speed) is July (10km/h).

Average humidity in September
Pirkkala, 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 (66%).

Average rainfall in September
Pirkkala, Finland
  • Average rainfall in September: 17mm

The wettest month (with the highest rainfall) is July (37mm).
The driest months (with the least rainfall) are March and April (16mm).

Average rainfall days in September
Pirkkala, Finland
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3 days).

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

The months with the highest snowfall are January, February and March (86mm).
The months with the least snowfall are June, July, August and September (0mm).

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

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

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

The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).

  • Average sunshine in September: 6h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average sunshine days in September
Pirkkala, Finland
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is February (10.4 days).

Average UV index in September
Pirkkala, 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
Pirkkala, Finland
  • Average cloud cover in September: 56

The month with the most cloud cover is February (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 44).

Average visibility in September
Pirkkala, Finland
  • Average visibility in September: 8km

The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January, February and March (6km).

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