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September Weather in Rio Iguapa, Mexico

Last updated: August 27, 2025

In September, the average temperature in Rio Iguapa, Mexico hovers around 22°C (71°F), making it a mild and inviting time to visit. You can expect minimum temperatures as low as 16°C (60°F), while the maximum can reach up to 30°C (85°F). However, be prepared for some rain, as the region receives an average precipitation of 541 mm (21.3 in) over 29 days, coupled with a humidity level of approximately 82%.

September Temperature in Rio Iguapa

In September in Rio Iguapa, the average temperature is 22°C (71°F), with maximums reaching 30°C (85°F) and minimums dipping as low as 16°C (60°F). This mild climate makes it an ideal time for traveling, allowing you to enjoy comfortable outdoor activities and explore the surroundings.

September Weather in Rio Iguapa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rio Iguapa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Iguapa, September typically has an average temperature of 22°C (71°F), with highs reaching up to 30°C (85°F) and lows dropping to around 16°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec686971737471727171717068
Data source: Temperature data for Rio Iguapa 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 Rio Iguapa

In Rio Iguapa in September, the precipitation amount is 541 mm (21.3 in), occurring over the course of 29 days.

September Precipitation Trends in Rio Iguapa

The chart displays monthly precipitation patterns in Rio Iguapa, 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 Rio Iguapa, September typically receives around 541 mm (21.3 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec827161404364114695414547534
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rio Iguapa

In Rio Iguapa in September, humidity is 82%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel laborious and sweat-dripping, urging travelers to stay hydrated and seek the shade more often.

September Average Humidity in Rio Iguapa

This chart illustrates the average monthly humidity levels in Rio Iguapa, 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 Rio Iguapa is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rio Iguapa

In Rio Iguapa 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 Rio Iguapa, you can check here.

Maximum UV Index Levels in Rio Iguapa for September

The chart shows the monthly maximum UV Index (UVI) for Rio Iguapa 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 Rio Iguapa typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151414141412109
Data source: Rio Iguapa 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 Rio Iguapa Compares to Other Months

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

This table compares monthly weather conditions in Rio Iguapa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)8 mm (0.3 inches)65%very high
February Weather21°C (69°F)2 mm (0.1 inches)61%extreme
March Weather22°C (72°F)7 mm (0.3 inches)59%extreme
April Weather23°C (73°F)16 mm (0.6 inches)62%extreme
May Weather23°C (74°F)140 mm (5.5 inches)73%extreme
June Weather22°C (72°F)436 mm (17.2 inches)78%extreme
July Weather22°C (72°F)411 mm (16.2 inches)79%extreme
August Weather22°C (72°F)469 mm (18.4 inches)82%extreme
September Weather22°C (71°F)541 mm (21.3 inches)82%extreme
October Weather22°C (71°F)454 mm (17.9 inches)79%extreme
November Weather21°C (70°F)75 mm (3.0 inches)72%very high
December Weather20°C (69°F)34 mm (1.3 inches)70%very high

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