Sullivan Weather in May

With daytime temperatures of 24°C (75°F) and nighttime lows of 12°C (54°F), May in Sullivan brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Sullivan in May

This month sees the most rain, so carrying an umbrella will ensure you stay dry. Records from the past 30 years suggest around 14 days of rain, with 131 mm (5.2 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Sullivan in May

If you're visiting Sullivan in May, expect highs of 24°C (75°F) and overnight lows around 12°C (54°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

If you prefer dry days with pleasant temperatures, October typically offers 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.