Rainy Season in Cusco — When It Is & What to Expect
Cusco has a distinct rainy season covering November to March, when roughly 890mm of rain falls — the bulk of the annual total. The wettest month is January (230.8mm over about 28 rainy days). Outside these months rainfall drops sharply, which is why the best time to visit is All year.
Cusco — Monthly Rainfall
Average monthly rainfall in millimetres, calculated from 2020–2023 data. Highlighted bars mark the rainy season.
Rainfall in Cusco month by month
| Month | Rain | Rainy days | High | Rating |
|---|---|---|---|---|
| January Wet | 230.8mm | 28 | 16.4°C | 8/10 |
| February Wet | 174.2mm | 26 | 16.3°C | 9/10 |
| March Wet | 164.8mm | 26 | 16.1°C | 9/10 |
| April | 73.4mm | 15 | 16.6°C | 10/10 |
| May | 39.9mm | 9 | 16.7°C | 10/10 |
| June | 4.1mm | 1 | 17.3°C | 10/10 |
| July | 7.4mm | 2 | 18.5°C | 10/10 |
| August | 18.2mm | 6 | 18.8°C | 10/10 |
| September | 36.8mm | 11 | 18.7°C | 10/10 |
| October | 73.2mm | 19 | 19.0°C | 10/10 |
| November Wet | 128.0mm | 22 | 18.7°C | 9/10 |
| December Wet | 192.4mm | 27 | 17.4°C | 9/10 |
Should you visit Cusco during rainy season?
It can still work. Rain in the wet season often falls in short, intense bursts rather than all-day washouts, prices are lower and crowds thinner. But expect high humidity, disrupted boat trips and island transfers, and the occasional flooded street.
Best time to avoid the rain
The driest, most comfortable window is All year — see the full best time to visit Cusco guide for the month-by-month breakdown.
Frequently Asked Questions
When is rainy season in Cusco?
Rainy season in Cusco runs November to March, peaking in January with 230.8mm of rain.
What is the wettest month in Cusco?
January — averaging 230.8mm of rain over roughly 28 rainy days.
Can you visit Cusco during rainy season?
It can still work. Rain in the wet season often falls in short, intense bursts rather than all-day washouts, prices are lower and crowds thinner. But expect high humidity, disrupted boat trips and island transfers, and the occasional flooded street.
When is the dry season in Cusco?
The driest, most comfortable months are All year — see the best time to visit Cusco guide.
Travelling in the wet season anyway?
Pack right for it — the full checklist is on our sister site.
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Check your Cusco packing list at 247PackingList for a full wet-season checklist. For country facts, see our Peru guide at 247CountryInfo.
Wet season essentials for Cusco
Compact travel umbrella
Windproof, fits in a daypack, dries fast — non-negotiable in monsoon season.
Check Price →Packable waterproof jacket
Light enough for the humidity, sealed enough for the downpours.
Check Price →Dry bag
Keeps phones, passports and cameras dry through boat trips and sudden storms.
Check Price →More wet-season travel gear
Quick-dry travel clothing
Lightweight and quick-drying — ideal for high-humidity wet seasons.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.