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September Weather in San Sebastian de Aparicio, Mexico

Last updated: August 27, 2025

In San Sebastian de Aparicio, Mexico, the average temperature in September hovers around 18°C (65°F), with a range that can dip to a chilly 10°C (50°F) and peak at a warm 27°C (81°F). This month is characterized by significant rainfall, with 260 mm (10.2 in) accumulating over approximately 25 days, leading to an average humidity of 82%. So, come prepared for a blend of warmth and moisture!

September Temperature in San Sebastian de Aparicio

In September in San Sebastian de Aparicio, the average temperature is 18°C (65°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as 10°C (50°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

September Weather in San Sebastian de Aparicio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Sebastian de Aparicio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian de Aparicio, September typically has an average temperature of 18°C (65°F), with highs reaching up to 27°C (81°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec596266686866656565646159
Data source: Temperature data for San Sebastian de Aparicio 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 San Sebastian de Aparicio

In San Sebastian de Aparicio in September, the total precipitation amount is 260 mm (10.2 in) spread over a period of 25 days.

September Precipitation Trends in San Sebastian de Aparicio

The chart displays monthly precipitation patterns in San Sebastian de Aparicio, 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 San Sebastian de Aparicio, September typically receives around 260 mm (10.2 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec75143595227172216260109286
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Sebastian de Aparicio

In San Sebastian de Aparicio in September, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

September Average Humidity in San Sebastian de Aparicio

This chart illustrates the average monthly humidity levels in San Sebastian de Aparicio, 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 San Sebastian de Aparicio 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 San Sebastian de Aparicio

In San Sebastian de Aparicio 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 San Sebastian de Aparicio, you can check here.

Maximum UV Index Levels in San Sebastian de Aparicio for September

The chart shows the monthly maximum UV Index (UVI) for San Sebastian de Aparicio 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 San Sebastian de Aparicio typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121415151515141413109
Data source: San Sebastian de Aparicio 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 San Sebastian de Aparicio Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian de Aparicio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)7 mm (0.3 inches)84%very high
February Weather17°C (62°F)5 mm (0.2 inches)78%extreme
March Weather19°C (66°F)14 mm (0.6 inches)75%extreme
April Weather20°C (68°F)35 mm (1.4 inches)70%extreme
May Weather20°C (68°F)95 mm (3.8 inches)77%extreme
June Weather19°C (66°F)227 mm (8.9 inches)76%extreme
July Weather18°C (65°F)172 mm (6.8 inches)68%extreme
August Weather18°C (65°F)216 mm (8.5 inches)70%extreme
September Weather18°C (65°F)260 mm (10.2 inches)82%extreme
October Weather18°C (64°F)109 mm (4.3 inches)91%extreme
November Weather16°C (62°F)28 mm (1.1 inches)89%very high
December Weather15°C (59°F)6 mm (0.2 inches)88%very high

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