Waterville Weather in May

May in Waterville brings moderate temperatures, with highs of 15°C (59°F) and nights dropping to 9°C (48°F). Rainfall is on the higher side this month, averaging around 98 mm (3.9 in), so keep a rain jacket handy.

Rainfall in Waterville in May

Based on our climate data of the past 30 years, about 19 days of rain are anticipated, with 98 mm (3.9 in) on average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Waterville in May

Waterville in May gets highs of 15°C (59°F) during the day and drops to 9°C (48°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Waterville in May

The area enjoys a balanced 180 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Waterville in May

Wind speeds average 5 m/s (10 knots) during May. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.

Average water temperature in May

The water sits at 11°C (52°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Waterville.