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September Weather in San Cayetano, Argentina

Last updated: August 22, 2025

In September, the average temperature in San Cayetano, Argentina is a comfortable 11°C (52°F), with a minimum dropping to -3°C (27°F) and reaching a pleasant maximum of 28°C (83°F). Expect 58 mm (2.3 in) of precipitation spread over 6 days, resulting in an average humidity of 79%.

September Temperature in San Cayetano

In September in San Cayetano, the average temperature is 11°C (52°F). Maximums can reach 28°C (83°F) and minimums can be as low as -3°C (27°F). This diverse range of temperatures makes San Cayetano an interesting destination for travelers prepared for both warm and chilly weather.

September Weather in San Cayetano: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Cayetano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Cayetano, September typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec716965605248464952566268
Data source: Temperature data for San Cayetano 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 Cayetano

In San Cayetano in September, the precipitation amount is 58 mm (2.3 in) over the course of 6 days.

September Precipitation Trends in San Cayetano

The chart displays monthly precipitation patterns in San Cayetano, 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 Cayetano, September typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec6982721004743503459748178
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Cayetano

In San Cayetano in September humidity is 79%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps through your clothes, making prolonged outdoor activities uncomfortable for travelers.

September Average Humidity in San Cayetano

This chart illustrates the average monthly humidity levels in San Cayetano, 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 Cayetano is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%76%76%79%80%79%74%75%79%76%74%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Cayetano

In San Cayetano in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in San Cayetano.

Maximum UV Index Levels in San Cayetano for September

The chart shows the monthly maximum UV Index (UVI) for San Cayetano 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 Cayetano typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14121064335791214
Data source: San Cayetano 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 Cayetano Compares to Other Months

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

This table compares monthly weather conditions in San Cayetano, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)69 mm (2.7 inches)71%extreme
February Weather20°C (69°F)82 mm (3.2 inches)76%extreme
March Weather18°C (65°F)72 mm (2.8 inches)76%very high
April Weather16°C (60°F)100 mm (3.9 inches)79%high
May Weather11°C (52°F)47 mm (1.8 inches)80%moderate
June Weather9°C (48°F)43 mm (1.7 inches)79%moderate
July Weather8°C (46°F)50 mm (2.0 inches)74%moderate
August Weather9°C (49°F)33 mm (1.3 inches)75%moderate
September Weather11°C (52°F)58 mm (2.3 inches)79%high
October Weather13°C (57°F)74 mm (2.9 inches)76%very high
November Weather17°C (63°F)81 mm (3.2 inches)74%extreme
December Weather20°C (68°F)78 mm (3.1 inches)70%extreme

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