September Weather in Mapastepec, Mexico

Last updated: August 27, 2025

In Mapastepec, Mexico, the average temperature in September hovers around 26°C (79°F), with a comfortable minimum of 21°C (70°F) and a peak of 32°C (90°F). This month is marked by significant precipitation, totaling 386 mm (15.2 in) spread over 26 days, contributing to an average humidity level of 80%. Stay prepared for a mix of warm temperatures and occasional rainfall!

September Temperature in Mapastepec

In September, in Mapastepec, the average temperature is 26°C (79°F), with maximums reaching 32°C (90°F) and minimums dropping as low as 21°C (70°F). This pleasant climate makes Mapastepec an ideal destination for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Mapastepec, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mapastepec, September typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (90°F) and lows dropping to around 21°C (70°F).

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

September Precipitation in Mapastepec

In Mapastepec in September, the precipitation amount is 386 mm (15.2 in) spread over 26 days.

September Precipitation Trends in Mapastepec

The chart displays monthly precipitation patterns in Mapastepec, 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 Mapastepec, September typically receives around 386 mm (15.2 inches) of precipitation spread over approximately 26 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Mapastepec

In Mapastepec in September humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

September Average Humidity in Mapastepec

This chart illustrates the average monthly humidity levels in Mapastepec, 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 Mapastepec is approximately 80%, 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 Mapastepec

In Mapastepec in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Mapastepec.

Maximum UV Index Levels in Mapastepec for September

The chart shows the monthly maximum UV Index (UVI) for Mapastepec 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 Mapastepec typically reaches 13, which falls under the extreme exposure category.

Data source: Mapastepec 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 Mapastepec Compares to Other Months

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

This table compares monthly weather conditions in Mapastepec, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	6 mm (0.2 inches)	70%	very high
February Weather	26°C (78°F)	3 mm (0.1 inches)	68%	extreme
March Weather	26°C (80°F)	14 mm (0.5 inches)	64%	extreme
April Weather	27°C (81°F)	27 mm (1.1 inches)	67%	extreme
May Weather	27°C (81°F)	193 mm (7.6 inches)	74%	extreme
June Weather	26°C (79°F)	321 mm (12.6 inches)	78%	extreme
July Weather	27°C (80°F)	266 mm (10.5 inches)	81%	extreme
August Weather	26°C (79°F)	317 mm (12.5 inches)	82%	extreme
September Weather	26°C (79°F)	386 mm (15.2 inches)	80%	extreme
October Weather	26°C (79°F)	381 mm (15.0 inches)	81%	extreme
November Weather	26°C (79°F)	59 mm (2.3 inches)	80%	very high
December Weather	25°C (78°F)	7 mm (0.3 inches)	75%	very high