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
With the beginning of September, the average high-temperature shows a decrease, transitioning from a pleasant 20.1°C (68.2°F) in August to a refreshing 14.3°C (57.7°F). Kuhmalahti reports a consistent average low-temperature of 7.4°C (45.3°F) throughout September nights.Humidity
In Kuhmalahti, the average relative humidity in September is 83%.Rainfall
In September, in Kuhmalahti, the rain falls for 12.6 days. Throughout September, 28mm (1.1") of precipitation is accumulated. In Kuhmalahti, during the entire year, the rain falls for 119.7 days and collects up to 379mm (14.92") of precipitation.Snowfall
Months with snowfall in Kuhmalahti are January through June, September through December. September is the first month it typically snows in Kuhmalahti. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 102.7 snowfall days, and 976mm (38.43") of snow is accumulated.Daylight
In Kuhmalahti, the average length of the day in September is 12h and 55min.On the first day of the month, sunrise is at 06:13 and sunset at 20:28. On the last day of September, sunrise is at 07:26 and sunset at 18:55 EEST.
Sunshine
In Kuhmalahti, the average sunshine in September is 6.5h.UV index
In Kuhmalahti, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Kuhmalahti?
What is the average humidity in September in Kuhmalahti?
How much does it rain in Kuhmalahti in September?
When does it start to snow in Kuhmalahti?
How many hours of daylight does Kuhmalahti have in September?
When are sunrise and sunset in September in Kuhmalahti?
How many hours of sunshine does Kuhmalahti have in September?
How high is the UV index in September in Kuhmalahti?
Average temperature in September
Kuhmalahti, Finland
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-4.9°C).
- Average low temperature in September: 7.4°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 (-9.2°C).
Average pressure in September
Kuhmalahti, Finland
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is May (1014.6mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Kuhmalahti, Finland
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (12.3km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).
Average humidity in September
Kuhmalahti, Finland
- Average humidity in September: 83%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (66%).
Average rainfall in September
Kuhmalahti, Finland
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is October (41mm).
The driest months (with the least rainfall) are March and April (25mm).
Average rainfall days in September
Kuhmalahti, Finland
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in September
Kuhmalahti, Finland
- Average snowfall in September: 1mm
The month with the highest snowfall is December (221mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Kuhmalahti, Finland
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (21.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Kuhmalahti, 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 3min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 0min).
Average sunshine days in September
Kuhmalahti, Finland
- Average sunshine days in September: 14 days
The month with the most sunshine days is June (17.4 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Kuhmalahti, Finland
- Average UV index in September: 3
The month with the highest UV index is 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
Kuhmalahti, Finland
- Average cloud cover in September: 57
The month with the most cloud cover is January (Cloud cover 81).
The months with the least cloud cover are July and August (Cloud cover 44).
Average visibility in September
Kuhmalahti, 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 and February (5km).
