Weather in Ushuaia in March

A hard month. March is a hard month in Ushuaia, and worth planning around. Highs sit at 10.9 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

March ranks 2 of 12 in Ushuaia. Only February scores clearly higher, and the difference is small enough to be settled by price rather than weather. That is not a contradiction: March is among the best months Ushuaia has, and it is still hard going. This is a city with no easy season rather than a city you have caught at a bad time.

This is persistent light rain rather than storms: 18 wet days but only 1 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Layers, and a genuinely waterproof outer — at 10.9 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest March day reached 19.8 °C and the coldest night fell to -0.1 °C, and the wettest single day dropped 43 mm — roughly 66% of the month's rain in one day.

March is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest March on record still delivered 125 mm against 36 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 65 mm average is a reasonable planning figure, not a promise.

Wind sits around 17.5 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 84%, which at 10.9 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How March sits in the year

Temperatures hold steady either side: 12.3 °C in February, 10.9 here, 7.9 in April. Nothing about the timing within the month matters much.

Daylight in March

12.7 hours of daylight, losing 2.2 hours across the month. That is between Ushuaia's extremes of 17.3 and 7.2 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 13.2 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Ushuaia versus nearby

If Ushuaia is one option among several, the nearby comparison is worth making. Puerto Montt is a better bet in March — 7.7 °C warmer, 6 days less rain. Mar del Plata is a better bet in March — 11.2 °C warmer, 6 days less rain.

So: March is effectively as good as it gets here — 4 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Ushuaia

See all twelve months in Ushuaia, or where else to go in March.