Patagonia · Month comparison
May vs March
March ranks #1 overall vs May at #9. Autumn colors on Patagonia's lenga beech forests — the most photogenic month and increasingly the expert's choice over the summer rush.
May
#9 of 12 months
Strong option
Pre-winter shoulder: most trekking operations closing, temperatures near freezing overnight — only Ushuaia's ski season beginning.
- ↑The only month where Perito Moreno glacier is genuinely uncrowded: the walkways open and the glacier in dramatic greyed winter light with no waiting for the prime calving viewpoints
- ↑Cerro Castor ski resort (Ushuaia) opening its season: the southernmost ski resort in the world, with 30+ runs and reliable early-season snow from May
March
#1 of 12 months
Best match
Autumn colors on Patagonia's lenga beech forests — the most photogenic month and increasingly the expert's choice over the summer rush.
- ↑Lenga beech trees (the dominant Patagonian beech species) turn vivid red, orange, and gold from late March: the autumn color on the hillsides around Torres del Paine's Valle del Francés and on the slopes above El Chaltén is the landscape photography equivalent of New England in October
- ↑Crowds beginning to thin from February peak: refugio availability returns without advanced booking, trail experience significantly better with 30–40% fewer hikers on the W-trek
| Factor | May | March |
|---|---|---|
| Weather score | 4 | 7 |
| Value score | 8 | 5 |
| Crowd score | 9 | 5 |
| Events score | 4 | 8 |
| Atmosphere | 5 | 9 |
| Avg high temp | 5.5°C | 12.5°C |
| Monthly rain | 52mm | 42mm |
| Daily sunshine | 5hrs | 9hrs |
May trade-offs
- ↓Torres del Paine and El Chaltén trekking routes partially or fully closed: the administration closes the W-trek and O-circuit from May 15 in most years due to fire risk and winter conditions
- ↓Freezing overnight temperatures throughout the region: requires full winter camping and hiking kit that most travelers don't carry — not a destination for casual visitors in May
March trade-offs
- ↓Daylight hours shortening rapidly (16h in early March to 13h by month-end): the long golden evening photography windows of January-February compressing
- ↓Wind patterns becoming less predictable as autumn approaches: calm days alternate with sudden strong gusts more randomly than in the summer season
Scores compare months within Patagonia. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →