Espoo Weather in September

September in Espoo brings moderate temperatures, with daytime highs of 16°C (61°F) and nights around 9°C (48°F). Quite a bit of rainfall is expected, around 65 mm (2.6 in), so pack an umbrella.

Rainfall in Espoo in September

Climate statistics over the past 30 years suggest around 18 days of rain, with 65 mm (2.6 in) average for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Espoo in September

In September, Espoo sees moderate temperatures, with highs of 16°C (61°F). Nights drop to around 9°C (48°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Espoo in September

The area enjoys a moderate level of sunlight, with around 151 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Espoo in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water is 13°C (55°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.