South America · Month-by-month weather, seasons and what to do — from Noura's Destination Finder.
🟢 Peak season · 🟠 Shoulder · ⚪ Off-peak
Average temperatures, sunshine and the feel of each month. Getting the timing right is half of a great trip.
| Month | Avg °F | Sun | Rain | Season | What it's like |
|---|---|---|---|---|---|
| January | 44–66°F | 5h | High (180mm) | Off-Peak | Green, misty and quiet: rainy-season Andes with lush terraces and low crowds. |
| February | 44–66°F | 4h | High (175mm) | Off-Peak | Wettest month with the Inca Trail closed, but emerald valleys and bargain prices. |
| March | 43–66°F | 5h | High (140mm) | Off-Peak | Rains ease as the Andes glow their greenest before the dry season crowds arrive. |
| April | 41–67°F | 7h | Moderate (65mm) | Shoulder | Rains fade into crisp, green shoulder season: ideal trekking before peak crowds. |
| May | 39–67°F | 7h | Low (20mm) | Peak | Dry season opens with sunny skies, green hills and superb Andean trekking. |
| June | 34–67°F | 8h | Minimal (9mm) | Peak | Sunny days, freezing nights and Inti Raymi festivities fill Cusco with color. |
| July | 34–67°F | 8h | Minimal (10mm) | Peak | Peak dry season: brilliant blue skies over Machu Picchu, cold starry nights. |
| August | 36–68°F | 8h | Minimal (18mm) | Peak | Warm, dry and sun-drenched days keep peak trekking season in full swing. |
| September | 39–68°F | 7h | Low (33mm) | Peak | Warm, still-dry days with thinning crowds make this a sweet-spot month. |
| October | 42–70°F | 7h | Moderate (67mm) | Shoulder | Warmest daytime highs and first light showers green the shoulder-season hills. |
| November | 42–68°F | 7h | Moderate (100mm) | Shoulder | Green returns with warm days and passing showers; quieter trails and good deals. |
| December | 43–69°F | 6h | High (160mm) | Off-Peak | Festive, rainy and lush, with holiday markets and dramatic misty Andean vistas. |
Data cross-referenced from climate and flight sources; conditions vary year to year.
Hand-picked ideas for every month of the year — from Noura's Destination Finder.
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