Gualeguaychú Weather in January
During January, Gualeguaychú experiences very high daytime temperatures of 32°C (90°F) and cooler nights around 19°C (66°F). Expect quite a bit of rainfall. Around 113 mm (4.4 in) is typical.
Rainfall in Gualeguaychú in January
Historically, approximately 8 days this month are expected to have rain, averaging 113 mm (4.4 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Gualeguaychú in January
January in Gualeguaychú sees highs of 32°C (90°F) and lows of 19°C (66°F) overnight. It's usually most comfortable outside during the morning and later in the day. Nights cool down to 19°C (66°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. Remember, these are typical temperatures, and certain days could be even hotter. Ensure you wear appropriate clothing to handle the warmth.
Sunshine in Gualeguaychú in January
The city usually sees around 289 hours of sunlight, indicating many sunny days — a great month for sightseeing.January in Gualeguaychú 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 Argentina, check out our Gualeguaychú's climate page.
Gualeguaychú Temperature in January
Min Temperature
19°C (66°F)
Max Temperature
32°C (90°F)
Chance of Rain
27%
Precipitation
113 mm (4.4 in)
Rainy days
8 days
Humidity
64% *
Sunshine
289 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Gualeguaychú typically stay consistent throughout January, with daily highs averaging around 32°C (90°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Gualeguaychú in January
Browse day-by-day weather records for Gualeguaychú spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Gualeguaychú historical weather extremes in January
Based on 49 years of weather observations in Gualeguaychú between 1976 and 2025, these are the recorded extremes.
- The warmest day in January was on January 14, 2022, with a maximum of 42°C (108°F).
- The coldest January day was on January 10, 1999, with a maximum of 20°C (68°F).
- The lowest overnight temperature recorded in January was 9°C (48°F) (January 18, 1990).
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 Gualeguaychú in January
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Gualeguaychú 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 Gualeguaychú's climate page.
Temperature Rainfall Sunshine Humidity
See the full Gualeguaychú climate overview or explore weather in Argentina.
