Brunswick Weather in September

Brunswick in September sees moderate daytime temperatures of 18°C (64°F) and nighttime lows of 7°C (45°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.

Rainfall in Brunswick in September

It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. You can typically expect 10 days of rain this month, averaging around 68 mm (2.7 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Brunswick in September

In September, expect moderate temperatures in Brunswick, with highs of 18°C (64°F) and lows of 7°C (45°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Brunswick in September

The month brings about 185 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Brunswick 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.

If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, October, November and December typically offer the best circumstances for Brunswick.