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
Ylitornio in September demonstrates a small temperature transition, adjusting from an average high of an enjoyable 17.6°C (63.7°F) in August to a fresh 12.2°C (54°F). The average temperature during September nights is registered at a wintry 5.4°C (41.7°F).Humidity
In Ylitornio, the average relative humidity in September is 84%.Rainfall
In Ylitornio, during September, the rain falls for 13.3 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, in Ylitornio, Finland, there are 114.3 rainfall days, and 441mm (17.36") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Ylitornio. September is the first month it typically snows in Ylitornio. Throughout September, in the average 0.3 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Ylitornio, there are 114.9 snowfall days, and 1412mm (55.59") of snow is accumulated.Daylight
The average length of the day in September is 13h and 8min.On the first day of September in Ylitornio, sunrise is at 06:01 and sunset at 20:49. On the last day of the month, sunrise is at 07:34 and sunset at 18:55 EEST.
Sunshine
In Ylitornio, the average sunshine in September is 6.3h.UV index
The average daily maximum UV index in September in Ylitornio is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during September morphs into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Ylitornio?
What is the average humidity in September in Ylitornio?
How much does it rain in Ylitornio in September?
When does it start to snow in Ylitornio?
How many hours of daylight does Ylitornio have in September?
When are sunrise and sunset in September in Ylitornio?
How many hours of sunshine does Ylitornio have in September?
What is the UV index reading in September in Ylitornio?
Average temperature in September
Ylitornio, Finland
- Average high temperature in September: 12.2°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (-8.2°C).
- Average low temperature in September: 5.4°C
The month with the highest average low temperature is July (10.9°C).
The coldest month (with the lowest average low temperature) is January (-13.8°C).
Average pressure in September
Ylitornio, Finland
- Average pressure in September: 1010.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in September
Ylitornio, Finland
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is April (9.2km/h).
Average humidity in September
Ylitornio, Finland
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (65%).
Average rainfall in September
Ylitornio, Finland
- Average rainfall in September: 40mm
The wettest months (with the highest rainfall) are July and December (47mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Ylitornio, Finland
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in September
Ylitornio, Finland
- Average snowfall in September: 5mm
The month with the highest snowfall is December (319mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Ylitornio, Finland
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is December (20.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Ylitornio, Finland
- Average daylight in September: 13h and 1min
The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 2h and 54min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in September
Ylitornio, Finland
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is April (7.6 days).
Average UV index in September
Ylitornio, Finland
- Average UV index in September: 2
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, October, November and December (UV index 1).
Average cloud cover in September
Ylitornio, Finland
- Average cloud cover in September: 58
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility in September
Ylitornio, 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, February, March, April and December (5km).
