Dartmouth Weather in September

Dartmouth in September sees pleasant temperatures, with highs around 21°C (70°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 106 mm (4.2 in) on average, so pack waterproofs just in case.

Rainfall in Dartmouth in September

Past climate data indicates that roughly 10 days will see rain, totalling around 106 mm (4.2 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Dartmouth in September

Daytime temperatures in Dartmouth reach 21°C (70°F) in September, dropping to 12°C (54°F) at night. The summer season is characteristic of September. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 12°C (54°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Dartmouth in September

The month brings about 180 hours of sunlight, offering a comfortable mix of sun and overcast.

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