September weather forecastVantaa, Finland
September
Weather in September
The transition from Summer to Autumn starts in September in Vantaa. The weather marks a significant decrease in temperatures, falling to the 14.8°C (58.6°F) average. This precipitous drop is more pronounced in the evenings, making them pleasingly cool. The vibrant color changes of the foliage begin in earnest, offering scintillating visual experiences. September provides a unique intersection between Summer and Autumn, bringing with it a blend of weather conditions that allows locals and tourists to enjoy the best of both seasons.Temperature
September in Vantaa brings a decrease in the average high-temperature, shifting from an agreeable 20.5°C (68.9°F) in August to a refreshing 14.8°C (58.6°F). Throughout the nights in September, Vantaa experiences an average low-temperature of 6.9°C (44.4°F).Rainfall
During September, Vantaa regularly aggregates up to 64mm (2.52") of precipitation. During the entire year, Vantaa aggregates up to 682mm (26.85") of precipitation.Daylight
In Vantaa, Finland, the average length of the day in September is 12h and 52min.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 18:54 EEST.
Sunshine
The average sunshine in September is 4.8h.Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
During September, Vantaa experiences an average high-temperature of 14.8°C (58.6°F) and a low-temperature of 6.9°C (44.4°F).
In Vantaa, Finland, in September, 64mm (2.52") of precipitation is typically accumulated.
In September, the average day length in Vantaa, Finland, is 12h and 52min.
In September, on the first day of the month, sunrise is at 06:15 and sunset at 20:24. On the last day of the month, sunrise is at 07:24 and sunset at 18:54 EEST.
In September, the average sunshine duration in Vantaa, Finland, is 4.8h.
Average temperature in September
Vantaa, Finland
- Average high temperature in September: 14.8°C
The warmest month (with the highest average high temperature) is July (22.5°C).
The month with the lowest average high temperature is February (-2.7°C).
- Average low temperature in September: 6.9°C
The month with the highest average low temperature is July (12.6°C).
The coldest month (with the lowest average low temperature) is February (-8.9°C).
Average rainfall in September
Vantaa, Finland
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is October (82mm).
The driest month (with the least rainfall) is April (32mm).
Average daylight in September /
Average sunshine in September
Vantaa, Finland
- Average daylight in September: 12h and 54min
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: 4h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
