Dartmouth Weather in May

Thinking of visiting Dartmouth in May? Expect moderate temperatures reaching 15°C (59°F) during the day, dropping to 6°C (43°F) at night, with the driest conditions of the year.

Rainfall in Dartmouth in May

Conditions tend to be dry and settled, making it a good month for outdoor plans, even if you'll want to dress for the cooler temperatures. Based on our climate data of the past 30 years, about 14 days of rain are anticipated, with 90 mm (3.5 in) on average. 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 Dartmouth in May

Daytime highs in Dartmouth in May reach 15°C (59°F), with nights around 6°C (43°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 6°C (43°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Dartmouth in May

The month enjoys around 193 hours of sunshine, creating mostly sunny days despite the cool temperatures.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.