Manassas Weather in May

May in Manassas averages 24°C (75°F) during the day and 12°C (54°F) at night. It is the wettest month of the year, with 132 mm (5.2 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Manassas in May

With frequent rain showers this month, having an umbrella on hand will keep you dry. Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 132 mm (5.2 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Manassas in May

Temperatures in Manassas in May top out at 24°C (75°F) and drop to 12°C (54°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. 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.

Sunshine in Manassas in May

With approximately 259 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

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