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.
Tumbes Weather in September
September in Tumbes averages 29°C (84°F) during the day and 21°C (70°F) at night. With only 8.4 mm (0.3 in) of rainfall expected on average, it's a largely dry month.
Rainfall in Tumbes in September
Rain is expected on roughly 5 days, totalling around 8.4 mm (0.3 in) for the month. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in Tumbes in September
The temperature in Tumbes in September is excellent. Daytime highs reach 29°C (84°F), with nights dropping to 21°C (70°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.If your ideal day consists of dry skies and pleasant temperatures, July, August, September, October and November typically offer the best circumstances for Tumbes.
Tumbes Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
29°C (84°F)
Chance of Rain
16%
Precipitation
8.4 mm (0.3 in)
Rainy days
5 days
Humidity
79%
Tumbes Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tumbes - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Tumbes typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in September
Historical weather records for Tumbes in September
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.
Tumbes historical weather extremes in September
The extremes listed below come from historical weather data collected in Tumbes from 1999 through 2026.
- The hottest September day on record in Tumbes reached 32°C (90°F) (September 8, 2026).
- Tumbes experienced its chilliest September day on September 7, 1999, reaching only 21°C (70°F).
- Nighttime temperatures dropped to 14°C (57°F) on September 28, 2019, marking the coldest September night on record.
Best Places in Peru in September
Find out more about the weather in Peru and which places have the best travel conditions in this month. See all of Peru in September →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in Tumbes in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Tumbes in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Tumbes 3-Day Forecast
More climate data for Tumbes
See the full Tumbes climate overview or explore weather in Peru.
Popular in September
Where to go in September - average daytime high across popular destinations.
Iquitos
32°C (90°F) Trujillo
22°C (72°F) Lima20°C (68°F) Arequipa
20°C (68°F) Puno17°C (63°F) Cusco
17°C (63°F) Machu Picchu15°C (59°F) Urubamba14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Visit the Rainbow Mountains
"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.