May weather forecast
Cusco, Peru

May rings in the full onset of the dry season in Cusco, Peru, carrying along elevated sunshine hours and significantly reduced rainfall. With the coming of May, precipitation nosedives to an annual low of 9mm (0.35"), confined to just 3 days. Consequently, this month heralds one of the driest periods, rendering the city's landscape considerably less lush than the previous months. On the bright side, longer hours of sunshine from the higher sun make for great conditions to explore Cusco's abundant cultural and architectural sites. Despite the increasing sunshine, travellers should remember the still-high UV indices in their planning, as protection remains vital.

Temperature

In Cusco, May's average high-temperature stands at a still enjoyable 19.7°C (67.5°F), maintaining consistency with the preceding month. Significant dips from daytime highs mark the May nights, with a consistent average temperature of 2.7°C (36.9°F).

Humidity

In May, the average relative humidity is 55%.

Rainfall

In May, the rain falls for 3 days. Throughout May, 9mm (0.35") of precipitation is accumulated. In Cusco, during the entire year, the rain falls for 102 days and collects up to 708mm (27.87") of precipitation.

Daylight

The average length of the day in May in Cusco, Peru, is 11h and 29min.
On the first day of May in Cusco, Peru, sunrise is at 05:56 and sunset at 17:33. On the last day of the month, sunrise is at 06:04 and sunset at 17:27 -05.

Sunshine

In Cusco, Peru, the average sunshine in May is 7.7h.

UV index

The average daily maximum UV index in May is 11. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 11 in May interprets into the following advice:
Put into action all crucial precautions. Defense against sun damage is a must. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.