September weather forecastIvalo, Finland

September
Weather in September
September takes a definitive step towards the onset of autumn weather in Ivalo, Finland. A notable decline in the temperature range between 2°C (35.6°F) and 9°C (48.2°F), accompanied by a decrease in daylight hours signifies the returning dominance of colder weather. The gradual cooling is balanced with maintained rainfall levels, offering a soothing dampness to the chill. However, with the UV index dropping, September marks the fading memory of the summer sun. This weather transition enhances the picturesque nature of the city, offering a colorful spectacle of the turning leaves.Temperature
Onset of September in Ivalo comes with a temperature decline, the average high falling from a moderate 15°C (59°F) in August to a chilly 9°C (48.2°F). Ivalo's average low-temperature is measured at an icy 2°C (35.6°F) during September.Rainfall
In Ivalo, in September, it is raining for 18 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, there are 217 rainfall days, and 426mm (16.77") of precipitation is accumulated.Daylight
In Ivalo, the average length of the day in September is 13h and 16min.On the first day of September in Ivalo, sunrise is at 05:35 and sunset at 20:44. On the last day of the month, sunrise is at 07:21 and sunset at 18:37 EEST.
Sunshine
In Ivalo, the average sunshine in September is 3h.UV index
In September, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 1 transforms into these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ivalo, Finland
- Average high temperature in September: 9°C
The warmest month (with the highest average high temperature) is July (18°C).
The month with the lowest average high temperature is January (-11°C).
- Average low temperature in September: 2°C
The month with the highest average low temperature is July (9°C).
The coldest month (with the lowest average low temperature) is January (-20°C).
Average rainfall in September
Ivalo, Finland
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is July (67mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days in September
Ivalo, Finland
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is January (22 days).
The months with the least rainy days are April and May (15 days).
Average daylight in September /
Average sunshine in September
Ivalo, Finland
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 17h and 36min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 3h
The months with the most sunshine are June and July (Average sunshine: 8h).
The months with the least sunshine are January and December (Average sunshine: 0h).
Average UV index in September
Ivalo, Finland
- Average UV index in September: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, October, November and December (UV index 0).





