Weather in Cusco in July

Prime time. July is about as good as Cusco gets. Highs average 17.3 °C, lows 4.9 °C, and rain falls on 2 days — nothing in the month is working against you.

July ranks 3 of 12 in Cusco. Only August scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 2 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 17.3 °C days and 4.9 °C nights; the spread matters more here than any single number.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest July day reached 22.1 °C and the coldest night fell to -1.7 °C, and the wettest single day dropped 35 mm — roughly 350% of the month's rain in one day.

This is the volatile part. July rainfall has ranged from 0 mm to 47 mm across the twenty years measured — a 47 mm spread around an average of 10 mm. The average is real but almost no individual July looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 6.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How July sits in the year

Temperatures hold steady either side: 17 °C in June, 17.3 here, 18.2 in August. Nothing about the timing within the month matters much.

Daylight in July

Cusco sits close enough to the equator that daylight barely moves all year — 11.4 hours in July, against a range of just 1.6 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 13.5 °C between the year's warmest afternoons and coldest nights. At 3312 m, altitude is doing as much work here as latitude: thinner air means fierce sun by day and heat that leaves the moment it sets.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, April is the trade worth considering — 14 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Cusco versus nearby

If Cusco is one option among several, the nearby comparison is worth making. Arequipa is a better bet in July — 7 °C warmer, 2 days less rain. Lima is close enough to be a coin toss — 11.1 °C warmer, 2 days less rain.

So: July is effectively as good as it gets here — 3 points behind August, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Cusco

See all twelve months in Cusco, or where else to go in July.