Best time to visit Mar del Plata

Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Sea feels bathtub at 29°C
26° strict 31° tolerant

Default 29 °C is the Beach Climate Index "bathtub" line (Morgan et al.) — where the sea stops being refreshing and starts feeling like a warm bath.

Saved to this browser. Changes update the strips below.
Sea temp cold <18° chilly 18–21° ideal 22–26° warm 27–28° bathtub 29–30° too warm ≥31°
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Sea Nov 2022 – Dec 2024 (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
11974222357910
On the sunniest 1 in 10 days, UV reaches this — and even higher
12119534691112
PM2.5 air quality · on a typical day (?)
665544566557
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
9988779108889
January 9/10 feels 25°C (+1°C vs 1991-2020) · HCI 90/100
Day 25° · Night 17° · cools 8° at night ☀ UV 10.8 (very high) 61% humidity 27 km/h wind 8 rain days (79h) 287h sun sea 21°C
Thermal 9
Sky 10
Rain 8
Wind 9

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Tours in Mar del Plata

3 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Mar del Plata).

  1. 1Polo Lessons in Mar del Plata: Learn and Improve Your Game5.00★ (4)2hfrom $130
  2. 2Vacation Photographer in Mar del Plata4.00★ (1)30mfrom $293
  3. 3Private Photo Session with a Local Photographer in Mar del Plata30mfrom $293

Last refreshed 2026-06-20.

Similar climatesJosé Ignacio94% · Punta del Este93% · Punta del Diablo91%

Other destinations with the most-alike year-round climate to Mar del Plata (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Mar del Plata's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan 17–25 25 8 79 9.9 61% 27 287 11 Quiet 9
Feb 17–24 23 11 123 11.2 67% 26 230 9 Quiet 8
Mar 16–23 22 10 109 10.9 69% 25 234 7 Quiet 8
Apr 13–20 18 9 91 10.1 69% 25 200 4 Quiet 8
May 9–15 12 6 84 14.0 70% 25 173 2 Quiet 8
Jun 7–13 10 7 75 10.7 73% 24 149 2 Quiet 7
Jul 5–12 8 8 80 10.0 71% 25 167 2 Quiet 7
Aug 6–14 10 7 67 9.6 69% 26 183 3 Peak 8
Sep 7–15 12 6 62 10.3 68% 25 196 5 Moderate 8
Oct 9–18 15 8 74 9.3 66% 26 247 7 Moderate 9
Nov 13–21 19 9 79 8.8 66% 27 259 9 Peak 9
Dec 15–23 21 9 90 10.0 63% 27 288 10 Busy 9

UV Index in Mar del Plata by Month

UV index in Mar del Plata peaks at 11 (very high) in January, dropping to 2 (low) in June. January, February, November, December reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

Best months in detail

January

9/10

17–25°C · 8 rain days (79h) · 287 sun hours · 61% humidity · Quiet crowd · UV 11 (very high) · sunniest 1 in 10 days reach 12 (extreme)

November

9/10

13–21°C (feels 19°C) · 9 rain days (79h) · 259 sun hours · 66% humidity · Peak crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (very high)

October

9/10

9–18°C (feels 15°C) · 8 rain days (74h) · 247 sun hours · 66% humidity · Moderate crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

Every month

Show the other 9 months in detail

February

8/10

17–24°C · 11 rain days (123h) · 230 sun hours · 67% humidity · Quiet crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (very high)

March

8/10

16–23°C · 10 rain days (109h) · 234 sun hours · 69% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

April

8/10

13–20°C (feels 18°C) · 9 rain days (91h) · 200 sun hours · 69% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

May

8/10

9–15°C (feels 12°C) · 6 rain days (84h) · 173 sun hours · 70% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

June

7/10

7–13°C (feels 10°C) · 7 rain days (75h) · 149 sun hours · 73% humidity · Quiet crowd · UV 2 (low)

July

7/10

5–12°C (feels 8°C) · 8 rain days (80h) · 167 sun hours · 71% humidity · Quiet crowd · UV 2 (low)

August

8/10

6–14°C (feels 10°C) · 7 rain days (67h) · 183 sun hours · 69% humidity · Peak crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

September

8/10

7–15°C (feels 12°C) · 6 rain days (62h) · 196 sun hours · 68% humidity · Moderate crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

December

9/10

15–23°C (feels 21°C) · 9 rain days (90h) · 288 sun hours · 63% humidity · Busy crowd · UV 10 (very high) · sunniest 1 in 10 days reach 12 (extreme)

Frequently asked questions about visiting Mar del Plata

When is the best time to visit Mar del Plata?

January is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 17–25°C (8 rainy days). The top three months by score are January, November, October.

What is the worst time to visit Mar del Plata?

June is the lowest-scoring month (7/10). Typical conditions: 7–13°C (7 rainy days).

When are crowds lowest in Mar del Plata?

Search-interest seasonality (Google Trends 2021-2025) is lowest in June and peaks in November. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Mar del Plata have good weather but fewer tourists?

January (climate 9/10, crowd index 14) and October (climate 9/10, crowd index 43) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Mar del Plata by month?

UV peaks at 11 (very high) in January and is lowest in June at 2 (low). Monthly peak values: Jan 11, Feb 9, Mar 7, Apr 4, May 2, Jun 2, Jul 2, Aug 3, Sep 5, Oct 7, Nov 9, Dec 10. January, February, November, December reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

What is the UV index in Mar del Plata in January?

January is the peak UV month in Mar del Plata, with a daily-peak UV index of 11 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).

How high can UV get in Mar del Plata on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. January is the worst case: typical days average UV 11 (very high), but the top 10% of days reach UV 12 (extreme) — and even higher. Months where the sunniest days routinely exceed the typical reading: January, February, March, April, May, August, September, October, November, December. Plan sun protection for the worst case, not the average.