Cusco weather in September
September is one of the best months to visit Cusco: highs of 15°C (58°F) and about 18 mm (0.7 in) of rain on average. Nights average 3°C (37°F) and cloud cover 53% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 3rd warmest. Compared with August, it is about as warm and wetter; October brings highs of 15°C (59°F) and 63 mm (2.5 in) of rain.
Is September a good time to visit Cusco?
best month Weather score 70/100.
Yes. September is one of the best months for weather in Cusco.
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Does it rain a lot in Cusco in September?
No, it is usually dry: about 18 mm (0.7 in) falls in an average September. It is the 5th driest month of the year.
How warm is Cusco in September?
Days average 15°C (58°F) and nights 3°C (37°F).
Cusco weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 14°C (56°F) | 4°C (38°F) | 129 mm | 83% | least pleasant |
| February | 14°C (56°F) | 4°C (38°F) | 127 mm | 85% | least pleasant |
| March | 13°C (56°F) | 3°C (38°F) | 96 mm | 81% | least pleasant |
| April | 13°C (56°F) | 3°C (38°F) | 44 mm | 66% | fair |
| May | 13°C (56°F) | 3°C (37°F) | 9 mm | 47% | best |
| June | 13°C (56°F) | 2°C (35°F) | 4 mm | 39% | best |
| July | 13°C (56°F) | 1°C (34°F) | 11 mm | 38% | best |
| August | 14°C (58°F) | 2°C (35°F) | 8 mm | 41% | best |
| September | 15°C (58°F) | 3°C (37°F) | 18 mm | 53% | best |
| October | 15°C (59°F) | 3°C (37°F) | 63 mm | 68% | fair |
| November | 15°C (59°F) | 3°C (38°F) | 72 mm | 74% | fair |
| December | 14°C (57°F) | 3°C (38°F) | 137 mm | 81% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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