Last updated: August 22, 2025
In San Antonio, Belize, the average temperature in May hovers around 28°C (82°F), with minimums dipping to 21°C (70°F) and maximums soaring to 38°C (101°F). Expect 106 mm (4.2 in) of precipitation spread over 21 days, accompanied by an average humidity of 62%. Prepare for a warm and somewhat wet month!
In May in San Antonio, the average temperature is 28°C (82°F), with maximums reaching 38°C (101°F) and minimums dropping to as low as 21°C (70°F). This makes it a great time for travelers looking to enjoy warm weather and outdoor activities.
In San Antonio in May, the precipitation amount is 106 mm (4.2 in) during a span of 21 days.
In San Antonio in May, humidity is 62%. With an average temperature of 28°C (82°F), this humidity feels like walking through a warm, dense fog, making outdoor activities a bit more challenging but still enjoyable for those who appreciate the tropical atmosphere.
In San Antonio in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Antonio, you can check here.
UV Risk Categories
Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 23°C (73°F) | 68 mm (2.7 inches) | 85% | very high |
February Weather | 24°C (76°F) | 50 mm (2.0 inches) | 78% | extreme |
March Weather | 25°C (77°F) | 65 mm (2.5 inches) | 67% | extreme |
April Weather | 27°C (81°F) | 57 mm (2.3 inches) | 62% | extreme |
May Weather | 28°C (82°F) | 106 mm (4.2 inches) | 62% | extreme |
June Weather | 27°C (81°F) | 172 mm (6.8 inches) | 63% | extreme |
July Weather | 27°C (81°F) | 122 mm (4.8 inches) | 66% | extreme |
August Weather | 27°C (81°F) | 130 mm (5.1 inches) | 73% | extreme |
September Weather | 27°C (81°F) | 139 mm (5.5 inches) | 82% | extreme |
October Weather | 26°C (79°F) | 219 mm (8.6 inches) | 86% | extreme |
November Weather | 24°C (76°F) | 138 mm (5.5 inches) | 87% | very high |
December Weather | 23°C (74°F) | 65 mm (2.6 inches) | 87% | very high |