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
September ushers in a slight temperature change, with average high-temperatures reducing from August's agreeable 20.3°C (68.5°F) to a mild 15.1°C (59.2°F). In Ahjo, September's nights observe an average temperature dip to a chilly 9.8°C (49.6°F).Humidity
In Ahjo, Finland, the average relative humidity in September is 80%.Rainfall
In September, in Ahjo, the rain falls for 15.3 days. Throughout September, 37mm (1.46") of precipitation is accumulated. In Ahjo, during the entire year, the rain falls for 120 days and collects up to 353mm (13.9") of precipitation.Snowfall
June through September are months without snowfall in Ahjo.Daylight
In September, the average length of the day is 12h and 53min.On the first day of the month, sunrise is at 06:14 and sunset at 20:23. On the last day of September, sunrise is at 07:24 and sunset at 18:54 EEST.
Sunshine
In Ahjo, Finland, the average sunshine in September is 7.5h.UV index
In Ahjo, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Ahjo in September?
What is the average humidity in September in Ahjo?
How many days does it rain in September in Ahjo?
When it does not snow in Ahjo?
Does it snow in Ahjo in September?
What is the average length of the day in September in Ahjo?
When is the sunrise / sunset in September in Ahjo?
How many hours of sunshine does Ahjo have in September?
What is the UV index reading in September in Ahjo?
Average temperature in September
Ahjo, Finland
- Average high temperature in September: 15.1°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 (-2.8°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is January (-6.5°C).
Average pressure in September
Ahjo, Finland
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in September
Ahjo, Finland
- Average wind speed in September: 13.9km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest month (with the lowest average wind speed) is July (11.8km/h).
Average humidity in September
Ahjo, Finland
- Average humidity in September: 80%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Ahjo, Finland
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is October (48mm).
The driest month (with the least rainfall) is May (15mm).
Average rainfall days in September
Ahjo, Finland
- Average rainfall days in September: 15.3 days
The months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Ahjo, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (94mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Ahjo, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ahjo, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 24min).
The month with the least sunshine is December (Average sunshine: 1h and 54min).
Average sunshine days in September
Ahjo, Finland
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is May (21.9 days).
The month with the least sunshine days is November (11.1 days).
Average UV index in September
Ahjo, 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
Ahjo, Finland
- Average cloud cover in September: 47
The months with the most cloud cover are February and December (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Ahjo, Finland
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are February and March (7km).
