Mar del Plata in January

In January, Mar del Plata averages 26°C (78°F) during the day and 17°C (63°F) at night, with around 9 days of rain (80 mm total).

Peak season

Conditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.

January is a great month to visit Mar del Plata: pleasant temperatures and relatively few wet days.

26°C
Avg high
17°C
Avg low
9
Rain days
80 mm
Rainfall

How January compares to the rest of the year in Mar del Plata

1st
warmest month of the 12
2nd
wettest month of the 12
10%
of yearly rainfall falls in January
14 h 30 min
daylight on the 15th

January is one of the warmest months in Mar del Plata (1st of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 7°C above the annual average (19°C). January runs 2°C warmer than December (24°C) and cools 1°C in February (24°C).

January sunrise & sunset in Mar del Plata

🌅
Sunrise (15th)
5:44 AM
🌇
Sunset (15th)
8:14 PM
Day length
14 h 30 min

Times shown for Mar del Plata local time (America/Argentina/Buenos_Aires), calculated for the 15th of January. They shift by a few minutes day to day across the month.

Photography light in Mar del Plata — January

Golden-hour and blue-hour windows for the 15th of January, in Mar del Plata's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
4:44 AM – 5:24 AM
🌄 Golden hour (AM)
5:24 AM – 6:24 AM
🌇 Golden hour (PM)
7:34 PM – 8:34 PM
🌆 Blue hour (PM)
8:34 PM – 9:14 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.

📅 When to book — Mar del Plata in January

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (Peak season) and Mar del Plata's popularity.

✈ Flights — lead time
3-5 months
Flight prices are near their annual peak. Watch fare-alert tools, book directly when you see a fare under the typical range for this city.
🏨 Lodging — lead time
3-5 months
Reasonable selection still available at 3-4 months out, but central locations vanish first.
⚠ Christmas / New Year travel is a global premium-pricing event — many destinations 30-50% above normal. Book 4+ months ahead if your dates are Dec 20 - Jan 2.

Crowds & pricing — January in Mar del Plata

Peak season

Mar del Plata is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.

Why this tier: excellent tourism weather Southern Hemisphere summer holidays

Sun & mosquito risk — January in Mar del Plata

☀️ UV Index (noon, 15th)
12.3
Extreme
Stay indoors during midday hours; SPF 50+ even briefly outside, UPF clothing, wide-brim hat, sunglasses essential.
🦟 Mosquito risk
●●●●●
Severe
Severe mosquito season with active disease transmission risk. DEET 30%+, picaridin 20%, long sleeves day and night, treated nets, and check CDC/WHO travel advisories before going.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

Mar del Plata in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January 26°C / 78°F 17°C / 63°F 80 mm 9
February 24°C / 76°F 17°C / 63°F 80 mm 9
March 23°C / 73°F 16°C / 60°F 79 mm 9
April 19°C / 67°F 13°C / 56°F 94 mm 9
May 16°C / 60°F 10°C / 50°F 55 mm 8
June 13°C / 56°F 7°C / 45°F 45 mm 7
July 12°C / 54°F 6°C / 43°F 76 mm 8
August 14°C / 57°F 7°C / 44°F 44 mm 5
September 15°C / 59°F 8°C / 46°F 56 mm 7
October 17°C / 63°F 10°C / 49°F 69 mm 10
November 21°C / 69°F 13°C / 55°F 77 mm 9
December 24°C / 75°F 15°C / 59°F 85 mm 9

Other cities with similar January weather

🌍 See the full ranked list of climate twins for Mar del Plata in January →

Frequently asked questions

How hot is Mar del Plata in January?

In January, Mar del Plata averages a high of 26°C (78°F) and a low of 17°C (63°F) — generally warm.

Does it rain a lot in Mar del Plata in January?

January sees occasional rain in Mar del Plata, with about 9 rainy days on average.

Is January a good time to visit Mar del Plata?

January is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Mar del Plata in January?

Pack light layers for warm days and cooler evenings. See the full January packing list for Mar del Plata for a complete, climate-based checklist.

Open Mar del Plata on the interactive map

Check the live 10-day forecast and sunrise/sunset.