September weather forecastLoppi, Finland
September
Weather in September
September, the first month of the autumn in Loppi, is also a moderate month, with an average temperature varying between 8.2°C (46.8°F) and 15.1°C (59.2°F).Temperature
The shift from August to September involves a decrease in the average high-temperature, from a pleasant 20.8°C (69.4°F) to a moderate 15.1°C (59.2°F). September is noted for a mean low-temperature of 8.2°C (46.8°F).Humidity
In Loppi, the average relative humidity in September is 83%.Rainfall
August and September are months with the least rain in Loppi when the rain falls for 9.7 days and typically aggregates up to 18mm (0.71") of rain.Snowfall
June through September are months without snowfall in Loppi.Daylight
In Loppi, the average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 06:16 and sunset at 20:27. On the last day of September, in Loppi, sunrise is at 07:27 and sunset at 18:57 EEST.
Sunshine
In Loppi, the average sunshine in September is 7h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Loppi, Finland
- Average high temperature in September: 15.1°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 8.2°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in September
Loppi, Finland
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.3mbar).
Average wind speed in September
Loppi, Finland
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is December (11.4km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).
Average humidity in September
Loppi, Finland
- Average humidity in September: 83%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Loppi, Finland
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is December (44mm).
The driest months (with the least rainfall) are August and September (18mm).
Average rainfall days in September
Loppi, Finland
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is November (13.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
Loppi, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (229mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Loppi, Finland
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (22.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Loppi, Finland
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- 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
Loppi, Finland
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in September
Loppi, 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
Loppi, Finland
- Average cloud cover in September: 55
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Loppi, Finland
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January and February (5km).
