San Antonio, United StatesQuick decision
When to visit San Antonio?
🌞 Best time overall
October
🌡️ Optimal temperature
19°C–29°C in October
🌧 Least rain
25% rainy days in October
🌧 Wettest month
July (25%)
📅 Best score
8.3/10
By trip type
Best time by type of trip
The AlamoYear-round — 1836 battle shrine, Texas history icon.
River WalkYear-round — 24 km riverwalk, restaurants, boat tours.
Tex-Mex & Market SquareYear-round — puffy tacos, enchiladas, largest Mexican market in US.
BudgetJun–Aug — hot but prices –30%, indoor attractions.
Monthly climate data
San Antonio weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 6°C | 18°C | 25% | 1.7 | 9.7h | 7.2/10 |
| 🌤️ February | 9°C | 21°C | 26% | 2.0 | 8.1h | 7.4/10 |
| 🌤️ March | 14°C | 26°C | 32% | 2.0 | 8.8h | 7.8/10 |
| 🌤️ April | 17°C | 28°C | 37% | 3.3 | 10.0h | 8.0/10 |
| 🌤️ May | 21°C | 30°C | 47% | 5.3 | 11.0h | 7.5/10 |
| 🌤️ June | 24°C | 34°C | 36% | 2.5 | 12.4h | 7.2/10 |
| 🥵 July | 25°C | 36°C | 25% | 2.7 | 12.9h | 6.9/10 |
| 🥵 August | 25°C | 36°C | 26% | 2.6 | 12.6h | 6.9/10 |
| 🌤️ September | 23°C | 33°C | 32% | 3.4 | 11.2h | 7.3/10 |
| 🌤️ October | 19°C | 29°C | 25% | 2.5 | 10.7h | 8.3/10 |
| 🌤️ November | 13°C | 24°C | 29% | 2.1 | 8.4h | 7.7/10 |
| 🌤️ December | 9°C | 20°C | 25% | 1.9 | 7.8h | 7.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 28°C, 39% rainy days, 9.9h sunshine/day. Score: 7.8/10.
☀️ Summer (Jun–Aug) — Good time
Average 35°C, 29% rainy days, 12.6h sunshine/day. Score: 7.0/10.
🍂 Autumn (Sep–Nov) — Good time
Average 29°C, 29% rainy days, 10.1h sunshine/day. Score: 7.8/10.
❄️ Winter (Dec–Feb) — Good time
Average 20°C, 25% rainy days, 8.5h sunshine/day. Score: 7.3/10.
Accommodation
Find a place to stay in San Antonio
Check availability during the recommended period
Tip : off-peak months (July, August) are cheapest but weather is significantly worse.
Search on Hotels.comActivities & tours
Activities and tours in San Antonio
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to San Antonio
Compare flights from all airlines.
Search flights
Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
October is ideal with 25% rainy days and 29°C.
July is the wettest month with 25% rainy days.
Yes, October is the best month with an average of 29°C.
In winter, the average score is 7.3/10. Acceptable conditions for cultural visits.
Also explore
Destinations with similar climate
ItalyWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons