April Weather in San Antonio

Last updated: March 2, 2024

The weather in San Antonio, Mexico, during April is characterized by an average temperature of 18°C (65°F). Highs can soar to 29°C (84°F), while lows may dip to 9°C (49°F). Typically, the humidity level in San Antonio throughout April hovers around 81%.

9°C (49°F)

Minimum temperature

18°C (65°F)

Average temperature

29°C (84°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In April, San Antonio averages 133 mm (5.2 inches) of rainfall, typically over the course of 20 rainy days. The month enjoys an average of 12 hours 36 minutes of daylight, with the sun shining for approximately 10 hours 14 minutes each day. Additionally, there is a 43% probability of sunny days during this period.

133 mm (5.2 inches)

Precipitation

20 rainy days

Rainy days

10 hours 14 minutes

Sunshine hours

43%

Chance of sun

UV Index

In April, the UV Index in San Antonio reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 5 8 12 13 14 14 12 8 4 2 1
Exposure Low Moderate VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 30 min 45 min

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