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September Weather in Mazatan, Mexico

Last updated: August 27, 2025

In September, the average temperature in Mazatan, Mexico hovers around a warm 28°C (83°F). Expect a minimum of 14°C (58°F) and a scorching maximum of 42°C (108°F). During this time, the area experiences an average precipitation of 97 mm (3.8 in) over 8 days, with a notable humidity level of 80%. Prepare for a tropical experience!

September Temperature in Mazatan

In September in Mazatan, the average temperature is 28°C (83°F), with maximums reaching up to 42°C (108°F) and minimums dropping as low as 14°C (58°F). Travelers should be prepared for warm conditions and a wide temperature range, making it essential to pack accordingly for both the heat and cooler evenings.

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

The chart illustrates September temperature patterns in Mazatan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mazatan, September typically has an average temperature of 28°C (83°F), with highs reaching up to 42°C (108°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec596267758088858582776960
Data source: Temperature data for Mazatan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mazatan

In Mazatan in September, the total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 days.

September Precipitation Trends in Mazatan

The chart displays monthly precipitation patterns in Mazatan, 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 Mazatan, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec22162501161157697272420
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mazatan

In Mazatan in September, humidity is 80%. With an average temperature of 28°C (83°F), this humidity feels like a thick blanket enveloping you, making travel feel sluggish and sticky, as every movement generates a sheen of perspiration that clings to your skin.

September Average Humidity in Mazatan

This chart illustrates the average monthly humidity levels in Mazatan, 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 Mazatan is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%56%42%36%33%47%71%80%73%75%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mazatan

In Mazatan in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Mazatan.

Maximum UV Index Levels in Mazatan for September

The chart shows the monthly maximum UV Index (UVI) for Mazatan 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 Mazatan typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5810121212121111965
Data source: Mazatan 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 Mazatan Compares to Other Months

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

This table compares monthly weather conditions in Mazatan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)22 mm (0.9 inches)76%moderate
February Weather16°C (62°F)16 mm (0.6 inches)68%very high
March Weather19°C (67°F)25 mm (1.0 inches)56%very high
April Weather24°C (75°F)0 mm (0.0 inches)42%extreme
May Weather27°C (80°F)0 mm (0.0 inches)36%extreme
June Weather31°C (88°F)16 mm (0.6 inches)33%extreme
July Weather30°C (85°F)115 mm (4.5 inches)47%extreme
August Weather29°C (85°F)76 mm (3.0 inches)71%extreme
September Weather28°C (83°F)97 mm (3.8 inches)80%extreme
October Weather25°C (78°F)27 mm (1.1 inches)73%very high
November Weather21°C (69°F)24 mm (0.9 inches)75%high
December Weather16°C (60°F)20 mm (0.8 inches)81%moderate

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