September Weather in Sarteneja, Mexico

Last updated: August 26, 2025

Average temperature in Sarteneja, Mexico for the month of September is a pleasant 19°C (66°F). During this time, temperatures can range from a minimum of 10°C (49°F) to a maximum of 30°C (85°F). Expect 126 mm (5.0 in) of precipitation over approximately 14 days, contributing to an average humidity of 81%. Whether you're planning outdoor activities or looking for a cozy indoor escape, this climate offers a bit of everything!

September Temperature in Sarteneja

In September in Sarteneja, the average temperature is 19°C (66°F). Maximums can reach 30°C (85°F), and minimums can be as low as 10°C (49°F). It's a great time to explore Sarteneja, as the mild weather is perfect for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Sarteneja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sarteneja, September typically has an average temperature of 19°C (66°F), with highs reaching up to 30°C (85°F) and lows dropping to around 10°C (49°F).

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

September Precipitation in Sarteneja

In Sarteneja in September, the precipitation amount is 126 mm (5.0 in) over a span of 14 days.

September Precipitation Trends in Sarteneja

The chart displays monthly precipitation patterns in Sarteneja, 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 Sarteneja, September typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 14 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 Sarteneja

In Sarteneja in September, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.

September Average Humidity in Sarteneja

This chart illustrates the average monthly humidity levels in Sarteneja, 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 Sarteneja 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 Sarteneja

In Sarteneja 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 Sarteneja, you can check here.

Maximum UV Index Levels in Sarteneja for September

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

Data source: Sarteneja 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 Sarteneja Compares to Other Months

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

This table compares monthly weather conditions in Sarteneja, 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)	19 mm (0.7 inches)	75%	very high
February Weather	15°C (59°F)	7 mm (0.3 inches)	69%	extreme
March Weather	18°C (64°F)	10 mm (0.4 inches)	65%	extreme
April Weather	20°C (68°F)	21 mm (0.8 inches)	64%	extreme
May Weather	22°C (71°F)	45 mm (1.8 inches)	75%	extreme
June Weather	21°C (70°F)	73 mm (2.9 inches)	78%	extreme
July Weather	20°C (68°F)	116 mm (4.6 inches)	67%	extreme
August Weather	20°C (69°F)	54 mm (2.1 inches)	64%	extreme
September Weather	19°C (66°F)	126 mm (5.0 inches)	81%	extreme
October Weather	17°C (64°F)	50 mm (2.0 inches)	85%	extreme
November Weather	15°C (59°F)	10 mm (0.4 inches)	87%	very high
December Weather	12°C (54°F)	19 mm (0.7 inches)	87%	very high