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
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's enjoyable 16.5°C (61.7°F) to a cool 12.3°C (54.1°F). Hirmula's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a frosty 8.4°C (47.1°F).Humidity
In September, the average relative humidity is 82%.Rainfall
In Hirmula, during September, the rain falls for 15.3 days and regularly aggregates up to 51mm (2.01") of precipitation. In Hirmula, during the entire year, the rain falls for 127.7 days and collects up to 479mm (18.86") of precipitation.Snowfall
In Hirmula, snow does not fall in July through September.Daylight
The average length of the day in September is 13h and 6min.On the first day of September, sunrise is at 05:59 and sunset at 20:43. On the last day of the month, sunrise is at 07:30 and sunset at 18:52 EEST.
Sunshine
In September, the average sunshine is 6.9h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. 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 are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Hirmula have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Hirmula have in September?
What is the UV index reading in September?
Average temperature in September
Hirmula, Finland
- Average high temperature in September: 12.3°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in September: 8.4°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is January (-10.7°C).
Average pressure in September
Hirmula, Finland
- Average pressure in September: 1010.7mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in September
Hirmula, Finland
- Average wind speed in September: 16.9km/h
The windiest month (with the highest average wind speed) is November (17.7km/h).
The calmest month (with the lowest average wind speed) is April (12.4km/h).
Average humidity in September
Hirmula, Finland
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Hirmula, Finland
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Hirmula, Finland
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Hirmula, Finland
- Average snowfall in September: 0mm
The month with the highest snowfall is March (228mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Hirmula, Finland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hirmula, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 18min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).
Average sunshine days in September
Hirmula, Finland
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is October (13.9 days).
The month with the least sunshine days is December (9.9 days).
Average UV index in September
Hirmula, 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, March, October and December (UV index 1).
Average cloud cover in September
Hirmula, Finland
- Average cloud cover in September: 52
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Hirmula, Finland
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March and April (7km).
