Best time to visit San Antonio
The best months to visit San Antonio are March, November and February, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
March, November and February score best for San Antonio weather:
- February19° / 8°CRodeo season adds event demand while sightseeing stays comfortable.
- March23° / 12°CSpring warmth arrives; patios and mission walks work well before summer heat.
- November22° / 11°CMild days and cooler nights make November one of the easiest sightseeing months.
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By TripSapien Research · Updated May 20, 2026
San Antonio weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight |
|---|---|---|---|---|---|
| January | 17° | 6° | 52 | 11 | 11h |
| FebruaryBest weather | 19° | 8° | 53 | 11 | 11h |
| MarchBest weather | 23° | 12° | 75 | 15 | 12h |
| April | 27° | 16° | 79 | 15 | 13h |
| May | 30° | 20° | 96 | 18 | 13h |
| June | 34° | 23° | 65 | 15 | 14h |
| July | 35° | 24° | 53 | 14 | 14h |
| August | 36° | 24° | 52 | 13 | 14h |
| September | 32° | 21° | 74 | 14 | 13h |
| October | 28° | 17° | 87 | 13 | 12h |
| NovemberBest weather | 22° | 11° | 68 | 12 | 11h |
| December | 18° | 7° | 50 | 11 | 10h |
Temperatures in °C. Long-term monthly averages.
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San Antonio month by month
January
San Antonio in January: 17.4°C high, 6.3°C low, 52.2mm rain over 11 days, 10.5h daylight. Mild and dry — shoulder-season sweet spot.
FebruaryBest weather
San Antonio in February: 19.3°C high, 8.1°C low, 53mm rain over 11 days, 10.8h daylight. Mild and dry — shoulder-season sweet spot.
San Antonio Stock Show & Rodeo
MarchBest weather
San Antonio in March: 23.1°C high, 12°C low, 74.9mm rain over 15 days, 11.6h daylight. Mild but rainy — flexible plans pay off.
April
San Antonio in April: 26.9°C high, 15.6°C low, 79.3mm rain over 15 days, 12.5h daylight. Mild but rainy — flexible plans pay off.
Fiesta!!!
May
San Antonio in May: 30.4°C high, 19.9°C low, 96.3mm rain over 18 days, 13.3h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
June
San Antonio in June: 33.6°C high, 22.9°C low, 65.3mm rain over 15 days, 13.9h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Texas Folklife Festival · Bat migration
July
San Antonio in July: 34.9°C high, 23.7°C low, 52.8mm rain over 14 days, 14h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Bat migration
August
San Antonio in August: 35.5°C high, 24°C low, 51.6mm rain over 13 days, 13.5h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Bat migration
September
San Antonio in September: 32.4°C high, 21.4°C low, 74.1mm rain over 14 days, 12.7h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
San Japan
October
San Antonio in October: 27.7°C high, 16.5°C low, 86.7mm rain over 13 days, 11.9h daylight. Mild but rainy — flexible plans pay off.
NovemberBest weather
San Antonio in November: 21.9°C high, 11.2°C low, 67.8mm rain over 12 days, 11h daylight. Mild and dry — shoulder-season sweet spot.
December
San Antonio in December: 18°C high, 7.2°C low, 49.9mm rain over 11 days, 10.4h daylight. Mild and dry — shoulder-season sweet spot.
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