Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
May in Tumbes brings very high temperatures, with daytime highs of 30°C (86°F) and nights around 23°C (73°F). Expect around 53 mm (2.1 in) of rainfall during the month.
If you prefer enjoying temperate temperatures and rain-free days, July, August, September, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Tumbes - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Tumbes typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 23°C (73°F).
Browse day-by-day weather records for Tumbes spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Tumbes between 2002 and 2026, these are the recorded extremes during May.
Find out more about the weather in Peru and which places have the best travel conditions in this month. See all of Peru in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Tumbes climate overview or explore weather in Peru.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
The Rainbow Mountain (Vinicunca) is acolored rainbow mountain that will steal your heart forever and the view from the top will take your breath away.
"The other" Machu Picchu: the Inca City of Choquequirao
Discover Choquequirao, the hidden Inca city near Cusco. Hike through stunning landscapes and explore ancient ruins with fewer crowds than Machu Picchu.
Hike the inca Trail
Few walking tours speak so much to the imagination as the Inca Trail to Machu Picchu. The tour leads through beautiful mountain landscapes and it is called the 'Royal Highway'
The Inkaterra Reserva Amazonica
One of your highlights during a trip in Peru might be this eco-luxury lodge in front of the Madre de Dios River, called Inkaterra Reserva Amazonica.