Buenos Aires, Argentina skyline

Buenos Aires Weather in March

The usual March conditions in Buenos Aires, Argentina, drawn from 2006–2025 records.

Buenos Aires in March: highs near 24.6°C (76.3°F), lows near 18.1°C (64.6°F), roughly 8 rainy days adding up to 132 mm, and 10.2 hours of sunshine on an average day.

Avg high

24.6°C (76.3°F)

Avg low

18.1°C (64.6°F)

Rainfall

132 mm (5.2 in)

Rainy days

8 days

Sunshine

10.2 h / day

Humidity

74%

March vs the rest of the year

Only 3 months are warmer than March in Buenos Aires; for rain it is the wettest month.

MonthAvg highvs MarchRainRainy days
January28.3°C (82.9°F)+3.7°C (+6.7°F)78 mm8
February27.3°C (81.1°F)+2.7°C (+4.9°F)111 mm8
March24.6°C (76.3°F)—132 mm8
April21.3°C (70.3°F)−3.3°C (−5.9°F)91 mm7
May17.3°C (63.1°F)−7.3°C (−13.1°F)74 mm6
June14.4°C (57.9°F)−10.2°C (−18.4°F)49 mm6
July13.8°C (56.8°F)−10.8°C (−19.4°F)66 mm7
August15.6°C (60.1°F)−9°C (−16.2°F)62 mm6
September17.9°C (64.2°F)−6.7°C (−12.1°F)80 mm7
October20.8°C (69.4°F)−3.8°C (−6.8°F)102 mm9
November24.4°C (75.9°F)−0.2°C (−0.4°F)91 mm8
December27.2°C (81°F)+2.6°C (+4.7°F)77 mm8

What March feels like in Buenos Aires

For Buenos Aires, March is early autumn on the calendar (Buenos Aires is in the southern hemisphere, so the seasons run opposite to Europe and North America). Days are warm enough for short sleeves, and time outdoors is easy. Little changes after sunset — nights stay mild, only slightly below the daytime level. The air carries some moisture, so hot spells feel a little sticky.

Rain in Buenos Aires in March

It is a changeable month: rain comes about one day in 4, with dry spells in between. When rain comes it is heavy, about 16.5 mm (0.6 in) per wet day, often in short, strong bursts. That is heavier than Buenos Aires's usual 11.5 mm per rainy day across the year. March is Buenos Aires's wettest month of the year.

Daylight and sunshine in March

Mid-month, Buenos Aires gets 12 h 22 min of daylight, from sunrise near 6:52 am to sunset near 7:14 pm. Days are getting shorter: 1 h less daylight than in mid-February. The sun is out for roughly 82% of those daylight hours, so skies are mostly clear.

How March compares to the rest of the year

March is the 4th warmest month of the year in Buenos Aires. Compared with February, afternoons are 2.7°C (4.9°F) cooler, with 20 mm more rain. Temperatures keep falling into April. By April, typical highs are 21.3°C (70.3°F).

Who March suits

  • Sightseeing: a good fit — daytime temperatures are fine for walking around.
  • Parks & outdoor: a good fit — good conditions for sitting outside.
  • Beach: less ideal — too many rainy days.

Tips for visiting Buenos Aires in March

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Sunglasses

Plenty of sun, so bring sunglasses and a cap.

Quick questions

How warm is Buenos Aires in March?

Afternoons average 24.6°C (76.3°F) and nights about 18.1°C (64.6°F) — warm by most people's standards. It is the 4th warmest month of the year.

Does it rain a lot in Buenos Aires in March?

Yes, fairly — rain falls about one day in 4 and totals about 132 mm, so an umbrella is worth carrying.

What should I wear in Buenos Aires in March?

The numbers point to rain protection and sunglasses. There is little need to change for the evening.

Is March or April better for visiting Buenos Aires?

April scores better on our climate ranking (#1 of 12 vs #3), rated Great against Great. April is cooler and has fewer rainy days.

Is March a good time to visit Buenos Aires?

Great

Great — comfortable temperatures, some rainy days (about 8), plenty of sunshine (10.2 h a day). Within Buenos Aires's own year, March ranks #3 of 12 — one of the 3 best months to visit.

Warmer or drier places in March

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Buenos Aires weather by month.