San Antonio Weather in May

San Antonio in May sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 10°C (50°F). Rainfall is fairly high this month at around 67 mm (2.6 in), so pack a rain jacket to stay dry.

Rainfall in San Antonio in May

Typically, you can expect about 3 days of rain this month, with 67 mm (2.6 in) on average. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in San Antonio in May

Daytime temperatures in San Antonio reach 17°C (63°F) in May, dropping to 10°C (50°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in San Antonio in May

With about 115 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

For San Antonio itself, January, February, March, April, October, November and December generally stand out with 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.