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 onset of September, Kerimäki experiences a modest temperature adjustment, with the average high-temperature receding from a comfortable 19.5°C (67.1°F) in August to a mild 13.7°C (56.7°F). Kerimäki encounters a negligible difference from daytime peaks throughout the September nights, with a low-temperature average of 8.7°C (47.7°F).Humidity
In Kerimäki, the average relative humidity in September is 81%.Rainfall
In Kerimäki, in September, during 14.9 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 120.3 rainfall days, and 399mm (15.71") of precipitation is accumulated.Snowfall
In Kerimäki, snow does not fall in July through September.Daylight
The average length of the day in September in Kerimäki is 12h and 56min.On the first day of September, sunrise is at 05:53 and sunset at 20:11. On the last day of the month, sunrise is at 07:08 and sunset at 18:36 EEST.
Sunshine
The average sunshine in September is 6.4h.UV index
In September, the average daily maximum UV index in Kerimäki is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, an average UV index of 3 transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Kerimäki in September?
What is the average humidity in September in Kerimäki?
How many days does it rain in September in Kerimäki?
When it does not snow in Kerimäki?
Does it snow in Kerimäki in September?
What is the average length of the day in September in Kerimäki?
What time are sunrise and sunset in September in Kerimäki?
How long on average sun shines in September in Kerimäki?
What is the UV index reading in September in Kerimäki?
Average temperature in September
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 30min).
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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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
Kerimäki, 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).
