Weather in Fínsko in september
Country-wide climate normals across 15 cities in Fínsko.
How Hot Is Fínsko in september?
Fínsko's small geographic footprint means September is uniformly mild — typical 14°C highs nationwide.
Sunshine in Fínsko in september
Persistent cloud and grey skies define Fínsko's September: about 2.8h of sun a day in Helsinki. Daylight is in short supply too, running from 6:50 am to 7:40 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Fínsko In september?
Fínsko sees moderate rainfall in September — Helsinki averages 71mm across 12 days, with notable regional variation. Coastal cities often see more rain than the inland average, while drier regions see less. The country's September weather mixes sunny stretches with regular shower spells.
Is Fínsko Humid In september?
Saturated air defines Fínsko's September: humidity at 80% in Helsinki, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In Fínsko In september
Light breezes are typical across Fínsko in September: 17 kph in Helsinki, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Fínsko In september
Fínsko sees mostly cloudy weather through September: Helsinki averages 69% cloud cover, and the pattern repeats across the country. Bright sun is uncommon; expect a grey, soft-lit feel to most days.