Mar del Plata weather by month & the best time to visit
🇦🇷 Argentina · coastal city break · oceanic / maritime climate
The best time to visit Mar del Plata is December — its sunniest month (Sunshine Score 74/100), with March and January close behind. Mar del Plata averages about 2,683 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 115 mm of rain in December.
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- Sun hours / year
- 2,683
- Sunniest month
- December
- Peak score
- 74/100
- Rain / year
- 1,157 mm
- Midday UV at peak
- 10 (very high)
- Sea at warmest
- 22°C / 72°F
- Population
- 593k
- Elevation
- 19 m
When is the best time to visit Mar del Plata?
For sunshine, the best time to visit Mar del Plata is December, then March and January. The dullest month is July (20/100, 70 mm of rain). The full month-by-month picture is in the table below.
How sunny is Mar del Plata?
Mar del Plata gets a lot of sun: around 2,683 hours a year. 54 Sunshine Score points separate December (74) from July (20), so the month you pick matters. It ranks #24 of 41 destinations in Argentina for annual sunshine, below the national median of 2,741 hours. The year's 1,157 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 72 | 24° / 75°F | 16° / 61°F | 125 mm | 10 | 22° / 72°F |
| February | 72 | 24° / 75°F | 17° / 63°F | 125 mm | 9 | 22° / 72°F |
| March | 73 | 22° / 72°F | 15° / 59°F | 118 mm | 7 | 21° / 70°F |
| April | 69 | 19° / 66°F | 13° / 55°F | 105 mm | 4 | 19° / 66°F |
| May | 47 | 15° / 59°F | 10° / 50°F | 75 mm | 2 | 14° / 57°F |
| June | 28 | 12° / 54°F | 7° / 45°F | 62 mm | 1 | 12° / 54°F |
| July | 20 | 11° / 52°F | 6° / 43°F | 70 mm | 2 | 10° / 50°F |
| August | 27 | 12° / 54°F | 6° / 43°F | 78 mm | 3 | 10° / 50°F |
| September | 34 | 13° / 55°F | 7° / 45°F | 77 mm | 4 | 12° / 54°F |
| October | 51 | 16° / 61°F | 9° / 48°F | 101 mm | 6 | 15° / 59°F |
| November | 69 | 19° / 66°F | 12° / 54°F | 106 mm | 8 | 17° / 63°F |
| December | 74 | 23° / 73°F | 15° / 59°F | 115 mm | 10 | 18° / 64°F |
Sea temperature in Mar del Plata by month
The sea off Mar del Plata is warmest in January at around 22°C / 72°F, and coolest in July at 10°C / 50°F. The water sits at a comfortable 21°C or warmer roughly 3 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Mar del Plata on the interactive sunshine globe →
Nearby places for sunshine
- Buenos Aires (Ezeiza) Argentina · 357 km · best in Dec · 2,741 h sun/yr
- Montevideo Uruguay · 371 km · best in Dec · 2,791 h sun/yr
- Rosario Argentina · 630 km · best in Sep · 2,737 h sun/yr
- Cordoba Argentina · 954 km · best in Aug · 2,919 h sun/yr
- Porto Alegre Brazil · 1,062 km · best in Apr · 2,283 h sun/yr
- Mendoza Argentina · 1,163 km · best in Sep · 3,504 h sun/yr
Nearest destinations
- Necochea Argentina · 125 km · 2,720 h sun/yr · best in Jan
- Santa Teresita Argentina · 172 km · 2,608 h sun/yr · best in Dec
- Maldonado Uruguay · 408 km · 2,751 h sun/yr · best in Dec
- Bahía Blanca Argentina · 410 km · 3,009 h sun/yr · best in Apr
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