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September Weather in Valle de San Felipe, Mexico

Last updated: August 27, 2025

In September, the average temperature in Valle de San Felipe, Mexico is a comfortable 23°C (73°F). Expect a range with minimums dipping to 13°C (56°F) and maximums soaring up to 35°C (94°F). With 109 mm (4.3 in) of precipitation spread over 12 days, it's wise to prepare for occasional rain. The average humidity sits at a pleasant 72%, adding to the overall warmth of the season.

September Temperature in Valle de San Felipe

In September in Valle de San Felipe, the average temperature is 23°C (73°F), with maximums reaching 35°C (94°F) and minimums dropping to as low as 13°C (56°F). This pleasant climate makes Valle de San Felipe an ideal destination for travelers looking to enjoy a comfortable getaway.

September Weather in Valle de San Felipe: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Valle de San Felipe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valle de San Felipe, September typically has an average temperature of 23°C (73°F), with highs reaching up to 35°C (94°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec556066717678777873686157
Data source: Temperature data for Valle de San Felipe 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 Valle de San Felipe

In Valle de San Felipe in September, the total precipitation amount is 109 mm (4.3 in) during a span of 12 days.

September Precipitation Trends in Valle de San Felipe

The chart displays monthly precipitation patterns in Valle de San Felipe, 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 Valle de San Felipe, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec1511201741408818109341717
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valle de San Felipe

In Valle de San Felipe in September, humidity is 72%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel exhilarating yet slightly sticky, as the air clings to your skin and invites you to seek out cool, refreshing places to explore.

September Average Humidity in Valle de San Felipe

This chart illustrates the average monthly humidity levels in Valle de San Felipe, 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 Valle de San Felipe is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%70%65%59%66%71%57%58%73%76%81%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valle de San Felipe

In Valle de San Felipe 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 Valle de San Felipe.

Maximum UV Index Levels in Valle de San Felipe for September

The chart shows the monthly maximum UV Index (UVI) for Valle de San Felipe 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 Valle de San Felipe typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111313131313121187
Data source: Valle de San Felipe 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 Valle de San Felipe Compares to Other Months

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

This table compares monthly weather conditions in Valle de San Felipe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)15 mm (0.6 inches)75%high
February Weather15°C (60°F)11 mm (0.4 inches)70%very high
March Weather19°C (66°F)20 mm (0.8 inches)65%extreme
April Weather22°C (71°F)17 mm (0.7 inches)59%extreme
May Weather25°C (77°F)41 mm (1.6 inches)66%extreme
June Weather25°C (78°F)40 mm (1.6 inches)71%extreme
July Weather25°C (77°F)88 mm (3.5 inches)57%extreme
August Weather25°C (78°F)18 mm (0.7 inches)58%extreme
September Weather23°C (73°F)109 mm (4.3 inches)72%extreme
October Weather20°C (68°F)34 mm (1.3 inches)76%extreme
November Weather16°C (62°F)17 mm (0.7 inches)81%very high
December Weather14°C (58°F)17 mm (0.7 inches)80%high

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