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San Antonio Weather in January

San Antonio in January sees high temperatures, with highs around 25°C (77°F) and overnight lows of 16°C (61°F). Rainfall is fairly high at around 61 mm (2.4 in) on average, so pack waterproofs just in case.

Rainfall in San Antonio in January

Records from the past 30 years suggest around 12 days of rain, with 61 mm (2.4 in) average for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in San Antonio in January

San Antonio in January is worth a visit. The temperature is excellent, with 25°C (77°F) during the day and 16°C (61°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in San Antonio in January

The city usually sees around 283 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March and April typically offer the best weather for San Antonio.

San Antonio Temperature in January

Min Temperature
16°C (61°F)
Max Temperature
25°C (77°F)
Chance of Rain
39%
Precipitation
61 mm (2.4 in)
Rainy days
12 days
Humidity
68% *
Sunshine
283 hours *
Percentage Sunshine
*
* Data from: San José, Costa Rica (12 KM, 7 Miles).

San Antonio Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in San Antonio - and find the best time to visit.

Best Places in Costa Rica in January

Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in January →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

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. Rain gear is recommended, you can expect wet weather on multiple days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in San Antonio in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    10/10
  • Walking
    10/10
  • Camping
    8/10
  • Outdoor sports
    10/10

San Antonio 3-Day Forecast

More climate data for San Antonio

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.