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
Weather in September
Temperature
September brings a drop in Harjusuo's average high-temperature, falling from an agreeable 20.3°C (68.5°F) in August to a moderate 15.2°C (59.4°F). Harjusuo records an average nighttime low of 9.8°C (49.6°F) in September.Humidity
In September, the average relative humidity in Harjusuo is 80%.Rainfall
In Harjusuo, in September, it is raining for 15.5 days, with typically 38mm (1.5") of accumulated precipitation. In Harjusuo, during the entire year, the rain falls for 120.2 days and collects up to 354mm (13.94") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Harjusuo, the average length of the day in September is 12h and 53min.On the first day of the month, sunrise is at 06:15 and sunset at 20:24. On the last day of September, sunrise is at 07:24 and sunset at 18:55 EEST.
Sunshine
In September, the average sunshine in Harjusuo is 7.4h.UV index
In Harjusuo, 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 ordinary individuals.Note: In September, the UV index of 3 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. 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 Harjusuo in September?
What is the average humidity in September in Harjusuo?
How much does it rain in Harjusuo in September?
When it does not snow in Harjusuo?
Does it snow in Harjusuo in September?
What is the average length of the day in September in Harjusuo?
What time are sunrise and sunset in September in Harjusuo?
How long on average sun shines in September in Harjusuo?
What is the UV index intensity in September in Harjusuo?
Average temperature in September
Harjusuo, Finland
- Average high temperature in September: 15.2°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
Harjusuo, 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 (1008.6mbar).
Average wind speed in September
Harjusuo, 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
Harjusuo, 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
Harjusuo, Finland
- Average rainfall in September: 38mm
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
Harjusuo, Finland
- Average rainfall days in September: 15.5 days
The months with the highest number of rainy days are July, August and September (15.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in September
Harjusuo, 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
Harjusuo, 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
Harjusuo, Finland
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 7h and 2min
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 42min).
Average sunshine days in September
Harjusuo, 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
Harjusuo, 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
Harjusuo, Finland
- Average cloud cover in September: 48
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
Harjusuo, 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).
Harjusuo, Finland
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