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
During Messukylä's transition into September, the average high-temperature lessens, moving from a pleasant 20.4°C (68.7°F) in August to a moderate 14.6°C (58.3°F). During September, Messukylä's temperature falls to a steady low-temperature average of 7.5°C (45.5°F).Humidity
In September, the average relative humidity is 82%.Rainfall
In September, the rain falls for 11.4 days. Throughout September, 17mm (0.67") of precipitation is accumulated. In Messukylä, during the entire year, the rain falls for 114.5 days and collects up to 256mm (10.08") of precipitation.Snowfall
In Messukylä, snow does not fall in June through September.Daylight
In Messukylä, the average length of the day in September is 12h and 55min.On the first day of September, sunrise is at 06:16 and sunset at 20:32. On the last day of the month, sunrise is at 07:30 and sunset at 18:58 EEST.
Sunshine
The average sunshine in September is 6.7h.UV index
In Messukylä, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
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?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Messukylä?
What is the UV index intensity in September in Messukylä?
Average temperature in September
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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
Messukylä, 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).
