San Antonio Weather in January
January in San Antonio typically sees daytime highs of 19°C (66°F) and nighttime lows of 11°C (52°F). January falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in San Antonio in January
San Antonio is in the rainy season in January, with rain on around 11 days and an average of 318 mm (13 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.
Temperature in San Antonio in January
January in San Antonio sees highs of 19°C (66°F) and lows of 11°C (52°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 11°C (52°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 January
Enjoy a sunny month with about 197 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.
Wind Speed in San Antonio in January
January sees wind speeds averaging (). You'll typically experience very calm weather with minimal air movement throughout the month. Keep in mind this is an average. While most days are nearly windless, occasional windier days may still occur.January in San Antonio can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ecuador, check out our San Antonio's climate page.
San Antonio Temperature in January
Min Temperature
11°C (52°F)
Max Temperature
19°C (66°F)
Chance of Rain
37%
Precipitation
318 mm (13 in)
Rainy days
11 days
Humidity
81% *
Windspeed
() *
Sunshine
197 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in San Antonio typically stay consistent throughout January, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 10°C (50°F).
Average temperatures in January
Historical weather for San Antonio in January
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 January
According to our 25 years of weather records for San Antonio, the following extremes were recorded between 2000 and 2025.
- San Antonio recorded its highest January temperature of 28°C (82°F) on January 23, 2024.
- The coldest January day was on January 29, 2000, with a maximum of 13°C (55°F).
- The lowest overnight temperature recorded in January was 4°C (39°F) (January 3, 2010).
Best Places in Ecuador in January
Find out more about the weather in Ecuador and which places have the best travel conditions in this month. See all of Ecuador in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Antonio in January
Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! 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 January
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 Ecuador, check out our San Antonio's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full San Antonio climate overview or explore weather in Ecuador.
