Mountain air

Cusco weather in December

Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.

53

Holiday weather in December

Fair

Best time to visit: April – December

Air temperature16°CNight 9°
Sea temperature–no sea nearby
Sunshine4hrs / dayof 12.9 h daylight
Rainy days31days / month346 mm

What is the weather like in Cusco in December?

In December, Cusco is mild: daytime highs average 16 °C, and nights cool down to about 9 °C. The sun is scarce, with only about 4 hours a day. It rains often – on about 31 days, adding up to 346 mm. All in all, December is a so-so month for a holiday in Cusco.

December compared

How the weather changes from November to January. Tap a month to open it.

NovemberNovDecemberDecJanuaryJan
Score545350
Day17°16°16°
Night9°9°9°
Sun4 h4 h4 h
Rain days293131

More details for December

Daylight
12 h 55 min05:15 – 18:10
UV index
16 · extremeclear sky, noon (estimate)
Muggy days
0 daysdew point 18 °C or more
Wind
8 km/haverage daily peak
Cloud cover
95 %on average
Hot days
0 days30 °C or more
Snow days
1 day1 cm or more of fresh snow
Time zone
UTC−5America/Lima

How the score comes together

  • Temperatureweight 50 %100 %
  • Sunshineweight 20 %13 %
  • Few rainy daysweight 30 %0 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in December

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella

Cusco in December: quick answers

Is Cusco hot in December?

No. In December, Cusco is mild: daytime highs average 16 °C and nights drop to about 9 °C.

Does it rain much in Cusco in December?

It rains often – on about 31 days, adding up to 346 mm.

Cusco month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)