Mar del Plata Weather in January
Mar del Plata in January sees high temperatures, with highs around 26°C (79°F) and overnight lows of 16°C (61°F). Rainfall is fairly high at around 83 mm (3.3 in) on average, so pack waterproofs just in case.
Rainfall in Mar del Plata in January
Typically, you can expect about 9 days of rain this month, with 83 mm (3.3 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Mar del Plata in January
Mar del Plata has perfect weather in January, with days reaching 26°C (79°F) and nights cooling to 16°C (61°F). January is known for being in the summer season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. 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. It's the warmest month of the year on average, so summer clothing is the way to go.
Sunshine in Mar del Plata in January
The days are predominantly sunny, with an estimated total of around 285 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Mar del Plata in January
Wind speeds average 5 m/s (10 knots) during January. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in January
The water is 20°C (68°F) this month — a comfortable temperature that most swimmers enjoy. Warm enough to stay in without getting cold quickly.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Mar del Plata.
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 Mar del Plata's climate page.
Mar del Plata Temperature in January
Min Temperature
16°C (61°F)
Max Temperature
26°C (79°F)
Water Temperature
20°C (68°F)
Chance of Rain
30%
Precipitation
83 mm (3.3 in)
Rainy days
9 days
Humidity
76%
Windspeed
5 m/s (10 knots)
Sunshine
285 hours
Percentage Sunshine
63%
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Mar del Plata typically stay consistent throughout January, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows typically ranging from 14°C (57°F) to 17°C (63°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 Mar del Plata in January
Browse day-by-day weather records for Mar del Plata spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mar del Plata historical weather extremes in January
The extremes listed below come from historical weather data collected in Mar del Plata from 1976 through 2025.
- On January 22, 1983, temperatures climbed to 38°C (100°F), marking the warmest January day on record.
- The coldest January day was on January 10, 1999, with a maximum of 14°C (57°F).
- Mar del Plata registered its coldest January night on January 2, 2018, with temperatures dropping to 5°C (41°F).
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 Mar del Plata 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. Prepare for significant rainfall with proper waterproof clothing and shoes. With water temperatures around 20°C (68°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Mar del Plata 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 Mar del Plata's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Mar del Plata climate overview or explore weather in Argentina.
