San Antonio Weather in January
January in San Antonio brings high temperatures, with daytime highs of 29°C (84°F) and nights around 18°C (64°F). The excellent weather makes it a solid choice for a visit.
Rainfall in San Antonio in January
Rain is expected on roughly 4 days, totalling around 21 mm (0.8 in) for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in San Antonio in January
January tends to be one of the excellent months in San Antonio, with 29°C (84°F) in the afternoon and 18°C (64°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 18°C (64°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. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Wind Speed in San Antonio in January
January has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in January
At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, September, October, November and December typically offer the best weather for San Antonio.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our San Antonio's climate page.
San Antonio Temperature in January
Min Temperature
18°C (64°F)
Max Temperature
29°C (84°F)
Water Temperature
18°C (64°F)
Chance of Rain
12%
Precipitation
21 mm (0.8 in)
Rainy days
4 days
Humidity
47%
Windspeed
5 m/s (10 knots)
Best Places in Argentina in January
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Antonio in January
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. With water temperatures around 18°C (64°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough.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 Argentina, check out our San Antonio's climate page.
Temperature Rainfall Humidity Wind Speed Water Temp
See the full San Antonio climate overview or explore weather in Argentina.
