San Antonio in January
7.4out of 10
Possible, with caveats
Mild: highs around 17°C. Some rain: about 7 rainy days.
17°CAvg high
6°CAvg low
7Rainy days (57 mm)
10:19 hDaylight
07:34Sunrise · 17:53 Sunset
Why this score
- Mild: highs around 17°C
- Some rain: about 7 rainy days
What to wear and pack
- Layers you can add or remove
- Comfortable walking shoes
How reliable is the forecast?
Rain in January varies a lot between years (±3.2 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 17°C | 6°C | 57 mm | 7 | – | – | 7.4 |
| February | 20°C | 8°C | 58 mm | 8 | – | – | 7.8 |
| March | 23°C | 12°C | 79 mm | 9 | – | – | 7.8 |
| April | 27°C | 15°C | 78 mm | 9 | – | – | 7.9 |
| May | 30°C | 20°C | 102 mm | 11 | – | – | 7.1 |
| June | 33°C | 23°C | 70 mm | 9 | – | – | 6.6 |
| July | 35°C | 23°C | 50 mm | 6 | – | – | 6.7 |
| August | 35°C | 24°C | 50 mm | 6 | – | – | 6.6 |
| September | 32°C | 21°C | 77 mm | 9 | – | – | 7.1 |
| October | 28°C | 16°C | 82 mm | 8 | – | – | 8.1 |
| November | 22°C | 11°C | 68 mm | 7 | – | – | 8.1 |
| December | 18°C | 7°C | 63 mm | 8 | – | – | 7.4 |
Frequently asked questions
How hot is San Antonio in January?
Daytime highs average 17°C and nights about 6°C.
When is the best time to visit San Antonio?
The best months are October, November, April, February.