Weather in Ushuaia in June
Argentina · 20-year averages, June
The month to avoid. Of the twelve, June is the one to avoid. Highs sit at 3.1 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
June ranks 11 of 12 — near the bottom of Ushuaia's year. February is the month that works, and the swing between the two is 24 points, which is a different holiday rather than a slightly better one.
This is persistent light rain rather than storms: 17 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 3.1 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 15 nights fall below freezing; the day barely swings — 3.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest June day reached 9.7 °C and the coldest night fell to -9.2 °C.
June is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest June on record still delivered 83 mm against 33 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 58 mm average is a reasonable planning figure, not a promise.
Wind sits around 16.7 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 93%, which at 3.1 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How June sits in the year
Temperatures hold steady either side: 5.4 °C in May, 3.1 here, 2.7 in July. Nothing about the timing within the month matters much.
Daylight in June
June sits at the dark end of Ushuaia's year — 7.2 hours of daylight against 17.3 at midsummer, losing 0.4 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
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
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
June in Ushuaia versus nearby
If Ushuaia is one option among several, the nearby comparison is worth making. Puerto Montt is a better bet in June — 7.4 °C warmer, 3 days more rain. Mar del Plata is a better bet in June — 9.3 °C warmer, 8 days less rain.
So: June is a compromise. February is 24 points better and is what Ushuaia is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Ushuaia
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 12.2 | 5.6 | 23 | 77 | 79 | 16.7 | 40 |
| February | 12.3 | 5.7 | 18 | 70 | 81 | 14.7 | 45 |
| March | 10.9 | 4.8 | 18 | 65 | 84 | 12.7 | 41 |
| April | 7.9 | 3.3 | 18 | 67 | 88 | 10.4 | 31 |
| May | 5.4 | 1.7 | 16 | 53 | 92 | 8.4 | 28 |
| June | 3.1 | -0.2 | 17 | 58 | 93 | 7.2 | 21 |
| July | 2.7 | -0.9 | 17 | 50 | 92 | 7.7 | 21 |
| August | 3.6 | -0.3 | 14 | 46 | 90 | 9.4 | 27 |
| September | 6.2 | 1.2 | 13 | 44 | 87 | 11.6 | 35 |
| October | 8.4 | 2.3 | 15 | 44 | 82 | 13.8 | 39 |
| November | 9.9 | 3.5 | 19 | 62 | 79 | 16 | 37 |
| December | 11.4 | 4.7 | 21 | 73 | 78 | 17.3 | 37 |
See all twelve months in Ushuaia, or where else to go in June.
Planning the rest of the trip
- Flight time to Ushuaia how long you are actually in the air
- Ushuaia time zone and the difference from home
- Days until your trip count down to the departure date