| Best time | January, February, March, October… | January, February, September, October… |
| Climate | mild | warm |
| Budget | Backpacker – Mid-range | Budget – Mid-range |
| Trip length | 2–8 wks | 2–4 wks |
| Visa | Visa-free for most Western passports (90 days). | Visa-free for many Western passports; US, Canadian, and Australian visitors need an eVisa. |
| Currency | ARS (Peso). Bring USD cash for "blue rate" exchange. | BRL (Real), roughly 5 BRL ≈ 1 USD. |
| Language | Spanish. Limited English outside Buenos Aires tourism. | Portuguese. Limited English outside tourism. |
| Tap water | Tap water safe in Buenos Aires. | Stick to bottled water. |
| Safety | Generally safe. Pickpocketing in Buenos Aires. | Exercise caution in big cities; petty crime is common, so keep valuables low-key. |