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September Weather in Los Llanos, Mexico

Last updated: August 27, 2025

In Los Llanos, Mexico, the average temperature in September is a mild 17°C (63°F). Expect minimums dipping to 11°C (51°F) and highs reaching up to 26°C (79°F). This month brings about 315 mm (12.4 in) of precipitation spread over 25 days, contributing to an average humidity of 85%. Stay prepared for a mix of warmth and wet weather!

September Temperature in Los Llanos

In September in Los Llanos, the average temperature is 17°C (63°F). The maximum can reach 26°C (79°F) and the minimum can be as low as 11°C (51°F). It's a great time to visit Los Llanos for pleasant weather and comfortable outdoor activities.

September Weather in Los Llanos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Los Llanos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Llanos, September typically has an average temperature of 17°C (63°F), with highs reaching up to 26°C (79°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec555862646665626362615856
Data source: Temperature data for Los Llanos 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 Los Llanos

In Los Llanos in September, the precipitation amount is 315 mm (12.4 in) during 25 days, indicating a relatively wet period for the region.

September Precipitation Trends in Los Llanos

The chart displays monthly precipitation patterns in Los Llanos, 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 Los Llanos, September typically receives around 315 mm (12.4 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec19262915952473703723151675414
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Los Llanos

In Los Llanos in September humidity is 85%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit stifling and encouraging frequent breaks in shaded areas or air-conditioned spaces for travelers.

September Average Humidity in Los Llanos

This chart illustrates the average monthly humidity levels in Los Llanos, 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 Los Llanos is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Los Llanos

In Los Llanos 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 Los Llanos, you can check here.

Maximum UV Index Levels in Los Llanos for September

The chart shows the monthly maximum UV Index (UVI) for Los Llanos 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 Los Llanos typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415141514141412109
Data source: Los Llanos 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 Los Llanos Compares to Other Months

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

This table compares monthly weather conditions in Los Llanos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)18 mm (0.7 inches)70%very high
February Weather14°C (58°F)26 mm (1.0 inches)64%extreme
March Weather17°C (62°F)29 mm (1.1 inches)54%extreme
April Weather18°C (65°F)15 mm (0.6 inches)61%extreme
May Weather19°C (67°F)95 mm (3.8 inches)75%extreme
June Weather18°C (65°F)247 mm (9.7 inches)83%extreme
July Weather17°C (63°F)370 mm (14.6 inches)83%extreme
August Weather17°C (63°F)372 mm (14.7 inches)85%extreme
September Weather17°C (63°F)315 mm (12.4 inches)85%extreme
October Weather16°C (62°F)167 mm (6.6 inches)79%extreme
November Weather15°C (59°F)54 mm (2.1 inches)76%very high
December Weather13°C (56°F)14 mm (0.6 inches)74%very high

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