Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The arrival of September signals a shift in temperature, down from a comfortable 19.5°C (67.1°F) in August to a moderate 13.7°C (56.7°F). Punkaharju, in September, registers a nighttime average temperature of 8.7°C (47.7°F).Humidity
In Punkaharju, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 14.9 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Punkaharju, Finland, during the entire year, the rain falls for 120.3 days and collects up to 399mm (15.71") of precipitation.Snowfall
In Punkaharju, Finland, snow does not fall in July through September.Daylight
The average length of the day in September is 12h and 56min.On the first day of September, sunrise is at 05:53 and sunset at 20:10. On the last day of the month, sunrise is at 07:07 and sunset at 18:36 EEST.
Sunshine
In Punkaharju, the average sunshine in September is 6.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Punkaharju have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Punkaharju have in September?
How high is the UV index in September in Punkaharju?
Average temperature in September
Punkaharju, Finland
- Average high temperature in September: 13.7°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (-5.4°C).
- Average low temperature in September: 8.7°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).
Average pressure in September
Punkaharju, Finland
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in September
Punkaharju, Finland
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is December (16.4km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in September
Punkaharju, Finland
- Average humidity in September: 81%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in September
Punkaharju, Finland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is July (49mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Punkaharju, Finland
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Punkaharju, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (164mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Punkaharju, Finland
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Punkaharju, 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 24min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).
Average sunshine days in September
Punkaharju, Finland
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is May (16.9 days).
The month with the least sunshine days is December (10.9 days).
Average UV index in September
Punkaharju, 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
Punkaharju, Finland
- Average cloud cover in September: 57
The month with the most cloud cover is February (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Punkaharju, Finland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (6km).
