Arlanda Weather in September

September in Arlanda sees daytime temperatures around 17°C (63°F) and lows of 8°C (46°F) at night. Pack a rain jacket because some rainfall is likely.

Rainfall in Arlanda in September

Climate statistics over the past 30 years suggest around 15 days of rain, with 56 mm (2.2 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Arlanda in September

Daytime highs in Arlanda in September reach 17°C (63°F), with nights around 8°C (46°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Arlanda in September

The area enjoys a moderate level of sunlight, with around 171 hours. It's a good balance between sunny and cloudy days.

If you prefer enjoying temperate temperatures and rain-free days, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.