Mar del Plata in September
In September, Mar del Plata averages 15°C (59°F) during the day and 8°C (46°F) at night, with around 7 days of rain (56 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Occasional showers are likely but won't dominate.
September in Mar del Plata is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How September compares to the rest of the year in Mar del Plata
September is in the middle of the year for warmth in Mar del Plata (9th of 12) and one of the driest months (11th of 12). Daytime temperature runs 4°C below the annual average (19°C). September runs 1°C warmer than August (14°C) and warms a further 2°C into October (17°C).
September sunrise & sunset in Mar del Plata
Times shown for Mar del Plata local time (America/Argentina/Buenos_Aires), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Mar del Plata — September
Golden-hour and blue-hour windows for the 15th of September, in Mar del Plata's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Mar del Plata in September
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 September's tier (Shoulder) and Mar del Plata's popularity.
Crowds & pricing — September in Mar del Plata
Mar del Plata is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — September in Mar del Plata
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
| Month | Avg high | Avg low | Rainfall | Rain days | Snow 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 September weather
🌍 See the full ranked list of climate twins for Mar del Plata in September →
Frequently asked questions
How hot is Mar del Plata in September?
In September, Mar del Plata averages a high of 15°C (59°F) and a low of 8°C (46°F) — generally cool.
Does it rain a lot in Mar del Plata in September?
September sees occasional rain in Mar del Plata, with about 7 rainy days on average.
Is September a good time to visit Mar del Plata?
September is cool. It suits travelers who are comfortable with cool 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 September?
Pack a warm jacket and layers. See the full September packing list for Mar del Plata for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.