Björholmen Weather in September

In Björholmen, September brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.

Rainfall in Björholmen in September

This month experiences about 13 days of rain according to historical data, averaging 110 mm (4.3 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Björholmen in September

Temperatures in Björholmen in September top out at 17°C (63°F) and drop to 13°C (55°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Björholmen in September

You can expect a moderate amount of sunlight, with approximately 171 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Björholmen in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in September

At 14°C (57°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.

If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Björholmen.