The best time to visit Argentine Patagonia (Bariloche) is Dec–Mar. It is the only stretch of the year — 4 months — rated go on both daytime heat and rainfall.
Windy, arid steppe; cold
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 19.8 | 68 | 15% | Go |
| February | 20.4 | 69 | 16% | Go |
| March | 17.6 | 64 | 23% | Go |
| April | 12.2 | 54 | 34% | Fair |
| May | 7.6 | 46 | 45% | Fair |
| June | 3.5 | 38 | 57% | Too cold |
| July | 2.8 | 37 | 49% | Too cold |
| August | 4.8 | 41 | 49% | Too cold |
| September | 8.3 | 47 | 34% | Fair |
| October | 11.5 | 53 | 31% | Fair |
| November | 14.5 | 58 | 26% | Fair |
| December | 17.0 | 63 | 21% | Go |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
January is the driest month, with rain on 15% of days and daytime highs near 19.8°C (68°F). June is the wettest, at 57%. The warmest month is February at 20.4°C (69°F); the coolest is July at 2.8°C (37°F). The record rules out too cold in Jun–Aug.