How extreme does Mar del Plata's weather get?

The hottest, coldest, wettest and snowiest days Mar del Plata has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Mar Del Plata Aero station 8 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Mar del Plata has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

103°F Dec 31, 1975

That is about 27°F hotter than a normal December afternoon in Mar del Plata (typical high near 76°F).

The three most extreme on record

1 103°F Dec 31, 1975

2 103°F Jan 29, 1987

3 101°F Feb 4, 1972

❄️ Coldest night

15°F Jul 6, 1988

About 22°F colder than a normal July night in Mar del Plata (typical low near 37°F).

The three most extreme on record

1 15°F Jul 6, 1988

2 17°F Jul 18, 1995

3 18°F Jul 20, 1995

🌧️ Most rain in one day

9.02 in May 9, 2012

More rain in a single day than Mar del Plata usually gets in the whole month of May (typical May total about 1.7 in).

The three most extreme on record

1 9.02 in May 9, 2012

2 8.86 in Feb 28, 1984

3 8.59 in May 14, 2002

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Mar del Plata's record heat sits well above even a hot day for the season — December's 103°F is about 27°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Mar del Plata's warmest days reach the low 80s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 103°F and as low as 15°F. A single day has delivered over 9 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Mar Del Plata Aero, a weather station, about 8 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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