nomadseason

September Weather in El Refugio, Mexico

Last updated: August 27, 2025

In September, the average temperature in El Refugio, Mexico hovers around 18°C (64°F). Expect cool nights with minimums dipping to 7°C (44°F), while daytime highs can reach up to 28°C (82°F). The region experiences a total precipitation of 144 mm (5.7 in) spread across 20 days, contributing to an average humidity level of 82%. Get ready for a month of comfortable yet humid weather!

September Temperature in El Refugio

In September in El Refugio, the average temperature is 18°C (64°F). Maximums can reach 28°C (82°F), while minimums can drop to as low as 7°C (44°F). This pleasant climate makes El Refugio an ideal destination for travelers looking to enjoy comfortable outdoor activities.

September Weather in El Refugio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in El Refugio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Refugio, September typically has an average temperature of 18°C (64°F), with highs reaching up to 28°C (82°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec566064676966656564625957
Data source: Temperature data for El Refugio generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in El Refugio

In El Refugio in September, the precipitation amount reaches 144 mm (5.7 in) over the course of 20 days.

September Precipitation Trends in El Refugio

The chart displays monthly precipitation patterns in El Refugio, 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 El Refugio, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec8718253612410811514469174
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in El Refugio

In El Refugio in September humidity is 82%. With an average temperature of 18°C (64°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel stifling, leaving travelers drenched in sweat and longing for respite in the shade.

September Average Humidity in El Refugio

This chart illustrates the average monthly humidity levels in El Refugio, 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 El Refugio is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in El Refugio

In El Refugio 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 El Refugio, you can check here.

Maximum UV Index Levels in El Refugio for September

The chart shows the monthly maximum UV Index (UVI) for El Refugio 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 El Refugio typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121415151414141412108
Data source: El Refugio 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 El Refugio Compares to Other Months

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

This table compares monthly weather conditions in El Refugio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (57°F)8 mm (0.3 inches)84%very high
February Weather16°C (61°F)7 mm (0.3 inches)78%extreme
March Weather18°C (64°F)18 mm (0.7 inches)75%extreme
April Weather20°C (68°F)25 mm (1.0 inches)70%extreme
May Weather21°C (69°F)36 mm (1.4 inches)77%extreme
June Weather19°C (67°F)124 mm (4.9 inches)76%extreme
July Weather18°C (65°F)108 mm (4.3 inches)68%extreme
August Weather18°C (65°F)115 mm (4.5 inches)70%extreme
September Weather18°C (64°F)144 mm (5.7 inches)82%extreme
October Weather17°C (62°F)69 mm (2.7 inches)91%extreme
November Weather15°C (59°F)17 mm (0.7 inches)89%very high
December Weather14°C (57°F)4 mm (0.1 inches)88%very high

Compare El Refugio's Climate with Cities Worldwide