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September Weather in Chunchucmil, Mexico

Last updated: August 27, 2025

In September, the island of Chunchucmil, Mexico offers a warm embrace with an average temperature of 28°C (83°F). However, be prepared for a range, as temperatures can dip to a minimum of 23°C (73°F) and peak at a sizzling 36°C (96°F). Expect 82 mm (3.2 in) of precipitation spread over 17 days, contributing to an average humidity level of 75%. Plan your activities accordingly to enjoy the vibrant atmosphere!

September Temperature in Chunchucmil

In September in Chunchucmil, the average temperature is 28°C (83°F). Maximums can reach 36°C (96°F), while minimums can drop to as low as 23°C (73°F). This warm climate makes Chunchucmil an ideal destination for travelers seeking sunny weather and outdoor activities.

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

The chart illustrates September temperature patterns in Chunchucmil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chunchucmil, September typically has an average temperature of 28°C (83°F), with highs reaching up to 36°C (96°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec747780838583838383817876
Data source: Temperature data for Chunchucmil 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 Chunchucmil

In Chunchucmil in September, the precipitation amount is 82 mm (3.2 in) over the course of 17 days.

September Precipitation Trends in Chunchucmil

The chart displays monthly precipitation patterns in Chunchucmil, 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 Chunchucmil, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec208315321545585821092616
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chunchucmil

In Chunchucmil in September humidity is 75%. With an average temperature of 28°C (83°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel particularly heavy, and prompting frequent breaks in the shade to stay comfortable while traveling.

September Average Humidity in Chunchucmil

This chart illustrates the average monthly humidity levels in Chunchucmil, 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 Chunchucmil is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%80%76%74%72%73%77%77%76%77%81%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chunchucmil

In Chunchucmil in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Chunchucmil.

Maximum UV Index Levels in Chunchucmil for September

The chart shows the monthly maximum UV Index (UVI) for Chunchucmil 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 Chunchucmil typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131312121187
Data source: Chunchucmil 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 Chunchucmil Compares to Other Months

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

This table compares monthly weather conditions in Chunchucmil, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (75°F)20 mm (0.8 inches)79%very high
February Weather25°C (78°F)8 mm (0.3 inches)80%very high
March Weather26°C (80°F)3 mm (0.1 inches)76%extreme
April Weather28°C (83°F)15 mm (0.6 inches)74%extreme
May Weather29°C (85°F)32 mm (1.3 inches)72%extreme
June Weather28°C (83°F)154 mm (6.1 inches)73%extreme
July Weather29°C (84°F)55 mm (2.1 inches)77%extreme
August Weather28°C (83°F)85 mm (3.4 inches)77%extreme
September Weather28°C (83°F)82 mm (3.2 inches)75%extreme
October Weather27°C (82°F)109 mm (4.3 inches)76%extreme
November Weather25°C (78°F)26 mm (1.0 inches)81%very high
December Weather24°C (76°F)16 mm (0.6 inches)84%high

Compare Chunchucmil's Climate with Cities Worldwide