San Antonio weather in May
Hot and humid, with regular rainfall. Average highs of 30°C and lows of 20°C, with around 15 rainy days expected throughout the month.
While May isn't our top-rated month for San Antonio, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
30°C
Average low
20°C
Rainy days
15 days
Best months to visit
March, April, October
What to do in San Antonio in May
Whatever the weather, San Antonio rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for May
Light breathable clothing, high-SPF sunscreen, a wide-brimmed hat, and a reusable water bottle are essential. Pack sandals and at least one light layer for air-conditioned interiors.
Browse other months
January
17C
Cool, with occasional showers.
February
19C
Mild and comfortable, with occasional showers.
Recommended
March
24C
Mild and comfortable, with some rainy days.
Recommended
April
27C
Warm and pleasant, with some rainy days.
May (you are here)
30C
Hot and humid, with regular rainfall.
June
33C
Hot and humid, with some rainy days.
July
35C
Very hot, with occasional showers.
August
35C
Very hot, with occasional showers.
September
32C
Hot and humid, with some rainy days.
Recommended
October
28C
Warm and pleasant, with occasional showers.
November
21C
Mild and comfortable, with occasional showers.
December
19C
Mild and comfortable, with occasional showers.
Book your May trip to San Antonio
Find hotels, tours and experiences for the perfect escape.
