December weather forecast
Machu Picchu, Peru

December's weather in Machu Picchu, Peru, receives the maximum precipitation of 121mm (4.76"), making it the wettest month of the year. The temperatures remain at their highest, sticking to 26°C (78.8°F), while the lows remain constant at 13°C (55.4°F). With slightly more daylight hours at 12.9, December makes the most of the 6 hours of sunshine. The UV index remains high at 12, indicating the ongoing need for sun protection measures. Moving from December to January, rainfall decreases, signaling the close of the wet season.

Temperature

September, November and December are the warmest months, with an average high-temperature of 26°C (78.8°F).

Rainfall

In Machu Picchu, Peru, in December, it is raining for 13 days, with typically 121mm (4.76") of accumulated precipitation. Throughout the year, there are 108 rainfall days, and 904mm (35.59") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 54min of daylight.
On the first day of the month, sunrise is at 05:14 and sunset at 18:04. On the last day of December, sunrise is at 05:26 and sunset at 18:20 -05.

Sunshine

In December, the average sunshine in Machu Picchu is 6h.

UV index

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 12 in December translates into these instructions:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.