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September Weather in Santa Catarina, Mexico

Last updated: August 26, 2025

In September, the average temperature in Santa Catarina, Mexico is a pleasant 23°C (74°F). Visitors can expect a minimum temperature of 15°C (59°F) and a maximum of 35°C (94°F). With an average humidity of 72%, the climate feels quite warm and inviting. However, be prepared for some rain, as 126 mm (5.0 in) of precipitation can occur over 12 days this month. 🌦️

September Temperature in Santa Catarina

In September in Santa Catarina, the average temperature is 23°C (74°F), with maximums reaching up to 35°C (94°F) and minimums dropping as low as 15°C (59°F). This pleasant climate makes Santa Catarina an ideal destination for travelers seeking to enjoy warm and comfortable weather.

September Weather in Santa Catarina: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Catarina, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Catarina, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (94°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec555966717577777874686158
Data source: Temperature data for Santa Catarina 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 Santa Catarina

In Santa Catarina in September, the precipitation amount is 126 mm (5.0 in) over the course of 12 days.

September Precipitation Trends in Santa Catarina

The chart displays monthly precipitation patterns in Santa Catarina, 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 Santa Catarina, September typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec2322343661498412126472925
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Catarina

In Santa Catarina in September humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

September Average Humidity in Santa Catarina

This chart illustrates the average monthly humidity levels in Santa Catarina, 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 Santa Catarina 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 Santa Catarina

In Santa Catarina 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 Santa Catarina.

Maximum UV Index Levels in Santa Catarina for September

The chart shows the monthly maximum UV Index (UVI) for Santa Catarina 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 Santa Catarina typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111313131312121186
Data source: Santa Catarina 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 Santa Catarina Compares to Other Months

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

This table compares monthly weather conditions in Santa Catarina, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)23 mm (0.9 inches)75%high
February Weather15°C (60°F)22 mm (0.9 inches)70%very high
March Weather19°C (66°F)34 mm (1.3 inches)65%extreme
April Weather21°C (71°F)36 mm (1.4 inches)59%extreme
May Weather24°C (76°F)61 mm (2.4 inches)66%extreme
June Weather25°C (78°F)49 mm (1.9 inches)71%extreme
July Weather25°C (77°F)84 mm (3.3 inches)57%extreme
August Weather26°C (79°F)11 mm (0.5 inches)58%extreme
September Weather23°C (74°F)126 mm (5.0 inches)72%extreme
October Weather20°C (69°F)47 mm (1.9 inches)76%extreme
November Weather16°C (62°F)29 mm (1.2 inches)81%very high
December Weather14°C (58°F)25 mm (1.0 inches)80%high

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