Quito Weather in September
Ecuador · Subtropical Highlands climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
September in Quito sees average temperatures ranging from a low of 7.0°C (44.6°F) to a high of 19.5°C (67.1°F), with a mean of 12.4°C (54.3°F). Compared to the annual average of 11.9°C (53.4°F), this month is 0.5°C warmer than the yearly norm. This is the hottest month of the year, reaching 19.5°C (67.1°F) on average. Precipitation averages 74.7mm, making it approximately 231.0mm drier than the monthly average of 305.0mm. This is the driest month of the year, with just 74.7mm of precipitation. The city receives an average of 11.2 hours of sunshine per day during September, with relative humidity averaging 68.2%. Wind speeds reach an average maximum of 14.8 km/h. For travelers, this month offers a hottest month of the year experience in Quito, with drier-than-average conditions compared to the rest of the year.
Quito's equatorial position at 2,850 meters creates one of the most unique climates I've studied. The temperature is remarkably stable year-round, with an annual average of 13°C. I've tracked the data and found that the city experiences two rainy seasons and two dry seasons. The best time for visiting is June to September and December to January, when the rainfall is lower.
September vs Adjacent Months
| Metric | August | September | October |
|---|---|---|---|
| Mean Temp | 12.1°C (53.8°F) | 12.4°C (54.3°F) | 12.1°C (53.8°F) |
| Rainfall | 77.4mm | 74.7mm | 299.2mm |
| Sunshine | 11.2 hrs | 11.2 hrs | 10.5 hrs |
| Humidity | 70.0% | 68.2% | 79.2% |
| Wind | 14.4 km/h | 14.8 km/h | 12.3 km/h |
| Rainy Days | 15.4 | 16.4 | 27.2 |
Seasonal Context
September falls in Autumn in the Northern Hemisphere. Autumn sees temperatures gradually cooling from summer highs. For travelers visiting Quito in September, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Quito in September?
The average temperature in Quito during September ranges from 7.0°C (44.6°F) to 19.5°C (67.1°F), with a mean of 12.4°C (54.3°F).
How much does it rain in Quito in September?
Quito receives an average of 74.7mm of precipitation in September, spread across approximately 16.4 rainy days. This is the driest month of the year.
What should I pack for Quito in September?
Based on September weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is September a good time to visit Quito?
September is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Quito
Cities with Similar September Climate (Subtropical Highlands)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -0.18°, -78.47°. Timezone: America/Guayaquil. Last updated: 2026-07-30.