Peak tourist season in Ecuador occurs from mid-June to early September, and then again in late December. This has more to do with vacation time in the U.S. than the seasons. You can visit Ecuador during any time of the year, but keep the following information in mind.
It can be confusing deciphering what the "dry" and "wet" seasons mean in Ecuador. December to May is the wet season, but also the best time to visit the coast. Counterintuitively, it’s actually sunnier on the coast during the wet season. During the wet season, rainy evenings follow a sunny morning and afternoon. From April to November, the dry season brings overcast skies but little rain.
If you’re thinking of visiting the Ecuadorian Amazon, know that it rains year-round, but much more so during the December-May wet season.
During the wet season, it’s slightly warmer in the highlands, although the temperature doesn’t change much. In Andean cities like Quito and Cuenca, temperatures usually range from the low 50s to the low 60s Fahrenheit (10 to 20 degrees Celsius).
Seasons in the Galápagos are give-and-take. During the wet season, the air and water get warm, but it rains frequently. In the dry season, you’ll find colder temperatures and rougher waters, but less rain.
During Carnaval, Easter, and Ecuadorian Independence Day (May 22nd) many Ecuadorians travel, and hotel prices increase. That being said, all of these holidays involve raucous, colorful street festivals, events you may not want to miss.