Järfälla Weather in September

Järfälla in September sees moderate temperatures, with highs around 17°C (63°F) and overnight lows of 8°C (46°F). Around 57 mm (2.2 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.

Rainfall in Järfälla in September

Analyzing past climate data, one can expect approximately 15 days of rain, averaging 57 mm (2.2 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Järfälla in September

In September, Järfälla sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 8°C (46°F). Conditions are often most pleasant around the middle of the day. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Järfälla in September

The month brings about 171 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Järfälla in September

September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in September

At 15°C (59°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

Should you favor a climate that's both dry and comfortably warm, June, 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.