Weather in South Boston in May
South Boston, United States averages a high of 18.1°C (64.6°F) and low of 9.8°C (49.6°F) in May, with 10 rain days and 9.9 hours of daily sunshine. Travel score: 72.5/100 (Good). The best time to visit South Boston is August.
High
18°C65°F
Low
10°C50°F
🌧️
10
rain days
☀️
9.9
hrs/day sunshine
💧
73%
humidity
73— Good
May in South Boston is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in South Boston?
How much does it rain in South Boston in May?
South Boston receives an average of 83.2mm of rainfall across 10 rainy days in May. The annual total is 1110.6mm.
What should I pack for South Boston in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 18°C
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to United States in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31