September weather forecastHumppila, Finland
September
Weather in September
September, the first month of the autumn in Humppila, is still a refreshing month, with an average temperature varying between 14.9°C (58.8°F) and 7.6°C (45.7°F).Temperature
Onset of September witnesses a reduction in the average high-temperature, falling from a pleasant 20.3°C (68.5°F) in August to a mild 14.9°C (58.8°F). Throughout the nights in September, an average low-temperature of 7.6°C (45.7°F) is noted in Humppila, Finland.Humidity
The average relative humidity in September is 83%.Rainfall
In Humppila, during September, the rain falls for 12.7 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, there are 128.2 rainfall days, and 406mm (15.98") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Humppila is 12h and 54min.On the first day of the month, sunrise is at 06:20 and sunset at 20:32. On the last day of September, in Humppila, Finland, sunrise is at 07:31 and sunset at 19:01 EEST.
Sunshine
The average sunshine in September in Humppila is 7h.UV index
In Humppila, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Humppila, Finland
- Average high temperature in September: 14.9°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°C).
- Average low temperature in September: 7.6°C
The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-8.1°C).
Average pressure in September
Humppila, Finland
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in September
Humppila, Finland
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (14.2km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Humppila, Finland
- Average humidity in September: 83%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is May (68%).
Average rainfall in September
Humppila, Finland
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Humppila, Finland
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Humppila, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (165mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Humppila, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Humppila, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Humppila, Finland
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in September
Humppila, 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
Humppila, Finland
- Average cloud cover in September: 53
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Humppila, Finland
- Average visibility in September: 8km
The months with the highest visibility are May, June, July and August (9km).
The month with the lowest visibility is February (6km).
