Dunoon Weather in September

September in Dunoon averages 17°C (63°F) during the day and 10°C (50°F) at night. Quite a bit of rainfall is typical this month, with around 138 mm (5.4 in) on average. An umbrella is a good idea.

Rainfall in Dunoon in September

The climate data from previous years indicates about 22 days of rain, averaging 138 mm (5.4 in) for the month. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Dunoon in September

September in Dunoon sees highs of 17°C (63°F) and lows of 10°C (50°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 10°C (50°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 Dunoon in September

The area enjoys a moderate level of sunlight, with around 117 hours. It's a good balance between sunny and cloudy days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Dunoon.