September Weather in Cosolapa, Mexico

Last updated: August 27, 2025

In September, the average temperature in Cosolapa, Mexico reaches a delightful 25°C (77°F). You'll experience pleasant days with highs of 33°C (92°F) and the occasional cool breeze bringing temperatures down to a minimum of 18°C (65°F). However, be prepared for some rain, as 21 days typically see a total precipitation of 251 mm (9.9 in). With an average humidity of 86%, the atmosphere feels wonderfully lush and tropical. Enjoy your time in this vibrant locale!

September Temperature in Cosolapa

In September in Cosolapa, the average temperature is 25°C (77°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 18°C (65°F). This pleasant climate makes Cosolapa an ideal destination for outdoor activities and sightseeing during this time of year.

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

The chart illustrates September temperature patterns in Cosolapa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cosolapa, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (92°F) and lows dropping to around 18°C (65°F).

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

September Precipitation in Cosolapa

In Cosolapa in September, the precipitation amount is 251 mm (9.9 in) over the course of 21 days.

September Precipitation Trends in Cosolapa

The chart displays monthly precipitation patterns in Cosolapa, 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 Cosolapa, September typically receives around 251 mm (9.9 inches) of precipitation spread over approximately 21 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 Cosolapa

In Cosolapa in September, humidity is 86%. With an average temperature of 25°C (77°F), this humidity feels like you are wrapped in a warm, heavy blanket, making travel a bit challenging as you may find yourself frequently seeking shade and hydration while navigating the vibrant streets.

September Average Humidity in Cosolapa

This chart illustrates the average monthly humidity levels in Cosolapa, 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 Cosolapa is approximately 86%, 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 Cosolapa

In Cosolapa 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 Cosolapa.

Maximum UV Index Levels in Cosolapa for September

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

Data source: Cosolapa 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 Cosolapa Compares to Other Months

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

This table compares monthly weather conditions in Cosolapa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (67°F)	87 mm (3.4 inches)	88%	very high
February Weather	20°C (69°F)	92 mm (3.6 inches)	86%	extreme
March Weather	22°C (72°F)	82 mm (3.2 inches)	84%	extreme
April Weather	24°C (76°F)	113 mm (4.4 inches)	81%	extreme
May Weather	26°C (79°F)	110 mm (4.3 inches)	82%	extreme
June Weather	25°C (78°F)	277 mm (10.9 inches)	81%	extreme
July Weather	25°C (77°F)	126 mm (5.0 inches)	81%	extreme
August Weather	25°C (78°F)	142 mm (5.6 inches)	82%	extreme
September Weather	25°C (77°F)	251 mm (9.9 inches)	86%	extreme
October Weather	24°C (75°F)	207 mm (8.2 inches)	90%	extreme
November Weather	21°C (71°F)	145 mm (5.7 inches)	91%	very high
December Weather	19°C (67°F)	74 mm (2.9 inches)	91%	very high