September Weather in Portovelo, Ecuador

Last updated: August 23, 2025

In September, the average temperature in Portovelo, Ecuador is a comfortable 18°C (64°F), making it perfect for exploring. Expect a minimum of 11°C (52°F) and a maximum of 26°C (79°F) throughout the month. However, be prepared for some rain, as 188 mm (7.4 in) of precipitation typically falls over 26 days. Despite the rain, average humidity hovers around 62%, adding to the local atmosphere.

September Temperature in Portovelo

In September in Portovelo, the average temperature is 18°C (64°F). Maximums can reach 26°C (79°F) and minimums can be as low as 11°C (52°F). These mild temperatures make it an ideal time for outdoor activities and exploration.

September Weather in Portovelo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Portovelo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portovelo, September typically has an average temperature of 18°C (64°F), with highs reaching up to 26°C (79°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for Portovelo generated using information from the Copernicus Climate Change Service.

September Precipitation in Portovelo

In Portovelo in September, the precipitation amount is 188 mm (7.4 in) over the course of 26 days.

September Precipitation Trends in Portovelo

The chart displays monthly precipitation patterns in Portovelo, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Portovelo, September typically receives around 188 mm (7.4 inches) of precipitation spread over approximately 26 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Portovelo

In Portovelo in September humidity is 62%. With an average temperature of 18°C (64°F), this humidity feels like a warm yet refreshing embrace, making it quite pleasant for traveling as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Portovelo

This chart illustrates the average monthly humidity levels in Portovelo, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Portovelo is approximately 62%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Portovelo

In Portovelo in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Portovelo.

Maximum UV Index Levels in Portovelo for September

The chart shows the monthly maximum UV Index (UVI) for Portovelo in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Portovelo typically reaches 16, which falls under the extreme exposure category.

Data source: Portovelo September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Portovelo Compares to Other Months

Weather in Portovelo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Portovelo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Portovelo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	17°C (64°F)	572 mm (22.5 inches)	81%	extreme
February Weather	18°C (64°F)	631 mm (24.8 inches)	79%	extreme
March Weather	18°C (64°F)	853 mm (33.6 inches)	85%	extreme
April Weather	18°C (64°F)	619 mm (24.4 inches)	88%	extreme
May Weather	18°C (64°F)	507 mm (20.0 inches)	92%	extreme
June Weather	17°C (64°F)	258 mm (10.1 inches)	87%	extreme
July Weather	17°C (63°F)	153 mm (6.0 inches)	67%	extreme
August Weather	17°C (63°F)	136 mm (5.4 inches)	57%	extreme
September Weather	18°C (64°F)	188 mm (7.4 inches)	62%	extreme
October Weather	17°C (64°F)	361 mm (14.2 inches)	77%	extreme
November Weather	17°C (63°F)	314 mm (12.4 inches)	82%	extreme
December Weather	17°C (64°F)	590 mm (23.2 inches)	86%	extreme