Gaithersburg Weather in May

Gaithersburg in May sees high daytime temperatures of 24°C (75°F) and nighttime lows of 12°C (54°F). Rainfall is fairly high this month at around 122 mm (4.8 in), so pack a rain jacket to stay dry.

Rainfall in Gaithersburg in May

Historically, approximately 13 days this month are expected to have rain, averaging 122 mm (4.8 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Gaithersburg in May

Daytime highs in Gaithersburg in May reach 24°C (75°F), with nights around 12°C (54°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Gaithersburg 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, August 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.