nomadseason

September Weather in Alvarenas, Mexico

Last updated: August 27, 2025

The average temperature in Alvarenas, Mexico during September is a pleasant 25°C (78°F). However, temperatures can vary significantly, with minimums dipping to 13°C (56°F) and maximums soaring up to 39°C (103°F). Visitors can expect about 67 mm (2.7 in) of precipitation spread over 8 days, accompanied by a high average humidity of 86%.

September Temperature in Alvarenas

In September, in Alvarenas, the average temperature is 25°C (78°F). Maximums can reach 39°C (103°F), and minimums can be as low as 13°C (56°F). This weather makes Alvarenas an ideal destination for travelers seeking warm days and cooler nights.

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

The chart illustrates September temperature patterns in Alvarenas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alvarenas, September typically has an average temperature of 25°C (78°F), with highs reaching up to 39°C (103°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec546169768387838378736455
Data source: Temperature data for Alvarenas 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 Alvarenas

In Alvarenas in September, the precipitation amount is 67 mm (2.7 in) during a total of 8 days.

September Precipitation Trends in Alvarenas

The chart displays monthly precipitation patterns in Alvarenas, 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 Alvarenas, September typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec6422513534868141016
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Alvarenas

In Alvarenas in September, humidity is 86%. With an average temperature of 25°C (78°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor activities challenging and potentially uncomfortable for traveling.

September Average Humidity in Alvarenas

This chart illustrates the average monthly humidity levels in Alvarenas, 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 Alvarenas is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%65%58%48%48%54%72%77%86%82%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alvarenas

In Alvarenas 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 Alvarenas.

Maximum UV Index Levels in Alvarenas for September

The chart shows the monthly maximum UV Index (UVI) for Alvarenas 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 Alvarenas typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111313131313121086
Data source: Alvarenas 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 Alvarenas Compares to Other Months

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

This table compares monthly weather conditions in Alvarenas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (55°F)5 mm (0.2 inches)75%high
February Weather16°C (61°F)4 mm (0.1 inches)65%very high
March Weather20°C (69°F)2 mm (0.1 inches)58%extreme
April Weather24°C (76°F)2 mm (0.1 inches)48%extreme
May Weather28°C (83°F)5 mm (0.2 inches)48%extreme
June Weather31°C (87°F)13 mm (0.5 inches)54%extreme
July Weather28°C (83°F)53 mm (2.1 inches)72%extreme
August Weather28°C (83°F)48 mm (1.9 inches)77%extreme
September Weather25°C (78°F)67 mm (2.7 inches)86%extreme
October Weather23°C (73°F)14 mm (0.6 inches)82%very high
November Weather18°C (64°F)10 mm (0.4 inches)85%very high
December Weather13°C (55°F)16 mm (0.6 inches)87%high

Compare Alvarenas's Climate with Cities Worldwide