September Weather in Fuerte Viejo, Mexico

Last updated: August 27, 2025

In September, the average temperature in Fuerte Viejo, Mexico hovers around 17°C (63°F), making it a pleasant time of year. Expect a minimum of 8°C (46°F) and a maximum of 27°C (82°F), providing a comfortable range for various activities. However, be prepared for 162 mm (6.4 in) of precipitation over 16 days, coupled with an average humidity level of 81%.

September Temperature in Fuerte Viejo

In September in Fuerte Viejo, the average temperature is 17°C (63°F), with maximums that can reach 27°C (82°F) and minimums as low as 8°C (46°F). This mild climate makes it an ideal time for travelers looking to explore the area comfortably.

September Weather in Fuerte Viejo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fuerte Viejo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fuerte Viejo, September typically has an average temperature of 17°C (63°F), with highs reaching up to 27°C (82°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Fuerte Viejo

In Fuerte Viejo in September, the precipitation amount is 162 mm (6.4 in) spread over 16 days.

September Precipitation Trends in Fuerte Viejo

The chart displays monthly precipitation patterns in Fuerte Viejo, 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 Fuerte Viejo, September typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 16 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 Fuerte Viejo

In Fuerte Viejo in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Fuerte Viejo

This chart illustrates the average monthly humidity levels in Fuerte Viejo, 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 Fuerte Viejo is approximately 81%, 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 Fuerte Viejo

In Fuerte Viejo in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Fuerte Viejo, you can check here.

Maximum UV Index Levels in Fuerte Viejo for September

The chart shows the monthly maximum UV Index (UVI) for Fuerte Viejo 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 Fuerte Viejo typically reaches 14, which falls under the extreme exposure category.

Data source: Fuerte Viejo 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 Fuerte Viejo Compares to Other Months

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

This table compares monthly weather conditions in Fuerte Viejo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	9 mm (0.4 inches)	74%	very high
February Weather	14°C (58°F)	13 mm (0.5 inches)	65%	extreme
March Weather	17°C (62°F)	18 mm (0.7 inches)	58%	extreme
April Weather	19°C (66°F)	11 mm (0.4 inches)	58%	extreme
May Weather	20°C (68°F)	55 mm (2.2 inches)	67%	extreme
June Weather	19°C (66°F)	161 mm (6.3 inches)	76%	extreme
July Weather	18°C (64°F)	135 mm (5.3 inches)	67%	extreme
August Weather	18°C (65°F)	98 mm (3.9 inches)	68%	extreme
September Weather	17°C (63°F)	162 mm (6.4 inches)	81%	extreme
October Weather	16°C (61°F)	71 mm (2.8 inches)	83%	extreme
November Weather	13°C (57°F)	26 mm (1.0 inches)	84%	very high
December Weather	12°C (54°F)	7 mm (0.3 inches)	81%	very high