San Antonio
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San Antonio Weather in May

May in San Antonio averages 34°C (93°F) during the day and 23°C (73°F) at night. Quite a bit of rainfall is typical this month, with around 101 mm (4 in) on average. An umbrella is a good idea.

Rainfall in San Antonio in May

Typically, about 7 days will experience rainfall, with an average of 101 mm (4 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in San Antonio in May

In May, San Antonio gets very high temperatures, with highs of 34°C (93°F). Nights cool to around 23°C (73°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows around 23°C (73°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in San Antonio in May

There are approximately 250 hours of sunshine this month, resulting in mostly clear days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and December typically offer the best weather for San Antonio.

San Antonio Temperature in May

Min Temperature
23°C (73°F)
Max Temperature
34°C (93°F)
Chance of Rain
23%
Precipitation
101 mm (4 in)
Rainy days
7 days
Sunshine
250 hours *
Percentage Sunshine
*
* Data from: Belmopan, Belize (33 KM, 20 Miles).

San Antonio Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Antonio - and find the best time to visit.

Best Places in Belize in May

Find out more about the weather in Belize and which places have the best travel conditions in this month. See all of Belize in May →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in San Antonio in May

Pack for serious heat in San Antonio in May. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in San Antonio in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    6/10
  • Outdoor sports
    7/10

San Antonio 3-Day Forecast

More climate data for San Antonio

Popular in May

Where to go in May - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.