Ecuador in September: Weather, Crowds & What to Expect

Season
High Season
Temperature
9-28°C (48-82°F)
Crowds
High
Prices
High
September offers stable weather across many regions, with warming days on the coast and continued dryness in the Andes. This is still considered part of Ecuador's main visitor season for highland and Galápagos trips.

Climate Map for September

Ecuador average temperature in September
-30°-20°-10° 10°20°30°40°

Average temperature across Ecuador in September.

City Weather in September

City High Low Rain UV Feels
Quito 20° 77 mm very high Cool
Guayaquil 30° 20° 3 mm very high Warm
Tumebamba 21° 51 mm very high Cool
Santo Domingo, Ecuador 26° 18° 78 mm very high Mild
Ambato, Ecuador 20° 37 mm very high Cool
Portoviejo 30° 19° 11 mm very high Warm
Durán, Ecuador 29° 20° 2 mm very high Warm

High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.

Pacific Coast (Guayaquil, Salinas, Manta, Montañita)

September is often sunny and warm with minimal rain along much of the coast; this is prime season for beach vacations, seafood festivals, and surfing tournaments. Guayaquil can be quite hot in the afternoons, so plan city sightseeing for mornings or late afternoons when the sea breeze moderates temperatures. Travelers will find reliable ferry and flight schedules and crowded weekends in popular resorts.

Northern Highlands (Otavalo, Ibarra, Cayambe, Imbabura)

September keeps the highlands dry and cool, with prolonged sunny spells that favor long hikes and driving between towns like Ibarra and Cotacachi. Birdwatching improves as skies clear and visibility increases on mountaintops, while evening temperatures remain brisk. Bring thermal layers for pre-dawn departures and plan treks for the morning before any localized cloud build-up.

Central Highlands & Quito Area (Quito, Cotopaxi, Latacunga, Baños)

September keeps the pattern of clear days and chilly nights, offering peak visibility across the sierra and comfortable daytime temperatures for exploration. Cultural festivals sometimes occur as towns take advantage of the dry weather; make lodging reservations early for these events. Pack sun protection and a warm layer for evenings and keep water for high-altitude exertion.

Southern Highlands (Cuenca, Loja, Vilcabamba, Cajas)

September remains dry and pleasant, with long days for outdoor excursions and stable mountain weather that favors multi-day treks. Cuenca’s cultural calendar and nearby archaeological sites are straightforward to visit with minimal weather disruption. Pack a range of layers for the highland temperature swings and be ready for cooler pre-dawn starts.

Amazon Basin (Tena, Coca, Lago Agrio, Yasuní)

September typically remains in the drier window with lower rivers and good visibility for wildlife watching along river margins; lodges are fully operational for trekking and canopy activities. The rainforest is lush but less waterlogged, making trails more passable and night walks safer. Travelers should plan early starts for wildlife activity and carry sun protection for exposed riverbanks.

Galápagos Islands (Santa Cruz/Puerto Ayora, San Cristóbal, Isabela, Floreana)

September is among the coolest months with persistent upwelling and nutrient-rich waters that fuel excellent diving; penguins and sea birds take advantage of the abundant food. Land mornings can be foggy and chilly, so warm clothing for early wake-ups is helpful. Travelers should consider wet suits for snorkeling, and expect steady winds that might affect small-boat comfort.

Events & Festivals in September

There are no major festivals or events in Ecuador during September to be aware of.