Saint Marys Weather in May

May in Saint Marys brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 8°C (46°F). Quite a bit of rainfall is expected, around 101 mm (4 in), so pack an umbrella.

Rainfall in Saint Marys in May

Past climate data indicates that roughly 11 days will see rain, totalling around 101 mm (4 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Saint Marys in May

In May, expect pleasant temperatures in Saint Marys, with highs of 20°C (68°F) and lows of 8°C (46°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

If you prefer enjoying temperate temperatures and rain-free days, August and September 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.