San Antonio Weather in April
April in San Antonio brings high temperatures, with daytime highs of 28°C (82°F) and nights around 15°C (59°F). The perfect weather makes it a solid choice for a visit.
Rainfall in San Antonio in April
You can typically expect 7 days of rain this month, averaging around 59 mm (2.3 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in San Antonio in April
The perfect temperature in San Antonio in April makes it a solid month to visit, with 28°C (82°F) during the day and 15°C (59°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in San Antonio in April
Enjoy a sunny month with about 210 hours of sunshine, the clear skies make San Antonio even more beautiful.If you're inclined towards comfortable temperatures and drier conditions, April is a good time to visit San Antonio.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Antonio's climate page.
San Antonio Temperature in April
Min Temperature
15°C (59°F)
Max Temperature
28°C (82°F)
Chance of Rain
23%
Precipitation
59 mm (2.3 in)
Rainy days
7 days
Humidity
66%
Sunshine
210 hours
Percentage Sunshine
54%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Antonio typically stay consistent throughout April, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows typically ranging from 13°C (55°F) to 18°C (64°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for San Antonio in April
Browse day-by-day weather records for San Antonio spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Antonio historical weather extremes in April
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in San Antonio.
- On April 20, 1984, temperatures climbed to 39°C (102°F), marking the warmest April day on record.
- San Antonio registered its coldest April night on April 3, 1987, with temperatures dropping to 1°C (34°F).
Best Places in the United States of America in April
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in April →
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What to Wear in San Antonio in April
Warm but pleasant conditions in San Antonio in April. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in San Antonio in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Antonio's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Antonio climate overview or explore weather in the United States of America.
