San Antonio Premium City Tour with Alamo & River Walk Cruise
4.81,211 reviews4h
from €144
Check availabilityBest months
January, March, and November
Warmest month
August, 36°C
Wettest month
September, 124 mm
San Antonio weather by month
Average daily high and low, total rainfall and days with at least 2.5 mm of rain.
| Month | High / low | Rain | Verdict |
|---|---|---|---|
| January | 18°C / 4°C | 57 mm · 4 days | Good |
| February | 19°C / 6°C | 34 mm · 3 days | Good |
| March | 24°C / 11°C | 56 mm · 3 days | Great |
| April | 27°C / 14°C | 54 mm · 3 days | Good |
| May | 30°C / 19°C | 95 mm · 5 days | Good |
| June | 34°C / 23°C | 57 mm · 3 days | Hot |
| July | 35°C / 24°C | 79 mm · 4 days | Hot |
| August | 36°C / 24°C | 53 mm · 2 days | Hot |
| September | 32°C / 21°C | 124 mm · 5 days | Hot |
| October | 28°C / 15°C | 80 mm · 4 days | Good |
| November | 22°C / 9°C | 25 mm · 2 days | Great |
| December | 18°C / 5°C | 49 mm · 4 days | Good |
San Antonio by season
Spring
Spring is arguably San Antonio's finest season, with warm, sunny days and mild evenings. Wildflowers bloom, and the city comes alive with its biggest event, Fiesta San Antonio, in April.
- + Ideal weather (70s-80s °F)
- + Fiesta San Antonio festival
- + Beautiful wildflowers and greenery
- − Peak hotel prices and crowds, especially during Fiesta
- − Potential for severe thunderstorms
Summer
Summer is intensely hot and humid, with frequent temperatures soaring above 95°F (35°C). It's the peak tourist season for families, with long daylight hours and indoor/water attractions in high demand.
- + Long days for exploring
- + All water parks and outdoor pools are open
- + Often lower hotel rates in late summer
- − Extreme heat and humidity
- − Afternoon thunderstorms
Autumn
Autumn brings relief from the heat with pleasant, warm days and cooler nights. October and November are particularly lovely, with smaller crowds and festive Halloween and Dia de los Muertos celebrations.
- + Comfortable temperatures
- + Fewer crowds than spring
- + Beautiful fall events and decorations
- − Weather can be unpredictable
- − Some outdoor attractions may have reduced hours
Winter
Winter is generally mild and dry, with occasional cold fronts. It's a festive time with the famous River Walk holiday lights and Christmas markets, though some attractions may be less active.
- + Holiday lights and festivities
- + Mild daytime temperatures
- + Lowest tourist crowds (except holidays)
- − Chilly evenings require a jacket
- − Some outdoor activities/water parks are closed
San Antonio month by month
San Antonio in January
GoodIn January, San Antonio averages highs of 18°C and lows of 4°C, with about 4 rainy days and 57 mm of rain. It is a good month to visit.
San Antonio in February
GoodIn February, San Antonio averages highs of 19°C and lows of 6°C, with about 3 rainy days and 34 mm of rain. It is a good month to visit.
San Antonio in March
GreatIn March, San Antonio averages highs of 24°C and lows of 11°C, with about 3 rainy days and 56 mm of rain. It is one of the most comfortable months for sightseeing.
San Antonio in April
GoodIn April, San Antonio averages highs of 27°C and lows of 14°C, with about 3 rainy days and 54 mm of rain. It is a good month to visit.
San Antonio in May
GoodIn May, San Antonio averages highs of 30°C and lows of 19°C, with about 5 rainy days and 95 mm of rain. It is a good month to visit.
San Antonio in June
HotIn June, San Antonio averages highs of 34°C and lows of 23°C, with about 3 rainy days and 57 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
San Antonio in July
HotIn July, San Antonio averages highs of 35°C and lows of 24°C, with about 4 rainy days and 79 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
San Antonio in August
HotIn August, San Antonio averages highs of 36°C and lows of 24°C, with about 2 rainy days and 53 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
San Antonio in September
HotIn September, San Antonio averages highs of 32°C and lows of 21°C, with about 5 rainy days and 124 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
San Antonio in October
GoodIn October, San Antonio averages highs of 28°C and lows of 15°C, with about 4 rainy days and 80 mm of rain. It is a good month to visit.
San Antonio in November
GreatIn November, San Antonio averages highs of 22°C and lows of 9°C, with about 2 rainy days and 25 mm of rain. It is one of the most comfortable months for sightseeing.
San Antonio in December
GoodIn December, San Antonio averages highs of 18°C and lows of 5°C, with about 4 rainy days and 49 mm of rain. It is a good month to visit.
Top tours and experiences in San Antonio
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Best time to visit San Antonio: FAQ
What is the best month to visit San Antonio?+
March is the most comfortable month on average, with highs of 24°C. November and January are close behind.
What is the rainiest month in San Antonio?+
September is the wettest month, with about 124 mm of rain.
How hot does San Antonio get?+
August is the warmest month, with average highs of 36°C and lows of 24°C. The coldest nights come in January, averaging 4°C.
Averages for 2006–2025 from the SAN ANTONIO INCARNATE WORD weather station (6 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.