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September Weather in San Carlos, Argentina

Last updated: August 22, 2025

In September, the average temperature in San Carlos, Argentina is a comfortable 20°C (69°F). However, be prepared for a range, as the minimum can drop to 7°C (44°F) while the maximum can soar to 36°C (97°F). This month sees 101 mm (4.0 in) of precipitation spread over about 10 days, and with an average humidity of 54%, it’s essential to plan accordingly for both warmth and a touch of moisture.

September Temperature in San Carlos

In September in San Carlos, the average temperature is 20°C (69°F). Maximums can reach 36°C (97°F) and minimums can drop as low as 7°C (44°F). Be prepared for warm days and cooler evenings while exploring this destination.

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

The chart illustrates September temperature patterns in San Carlos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Carlos, September typically has an average temperature of 20°C (69°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec817976716462606368727579
Data source: Temperature data for San Carlos 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 Carlos

In San Carlos in September, the precipitation amount is 101 mm (4.0 in) spread over the course of 10 days.

September Precipitation Trends in San Carlos

The chart displays monthly precipitation patterns in San Carlos, 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 Carlos, September typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1579613812519796907910114614093
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Carlos

In San Carlos in September humidity is 54%. With an average temperature of 20°C (69°F), this humidity feels like a refreshing embrace, making it comfortable for traveling while allowing for pleasant outdoor activities.

September Average Humidity in San Carlos

This chart illustrates the average monthly humidity levels in San Carlos, 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 Carlos is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%71%74%82%82%73%67%49%54%58%69%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Carlos

In San Carlos in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in San Carlos.

Maximum UV Index Levels in San Carlos for September

The chart shows the monthly maximum UV Index (UVI) for San Carlos 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 Carlos typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210656710131414
Data source: San Carlos 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 Carlos Compares to Other Months

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

This table compares monthly weather conditions in San Carlos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)157 mm (6.2 inches)77%extreme
February Weather26°C (79°F)96 mm (3.8 inches)71%extreme
March Weather24°C (76°F)138 mm (5.4 inches)74%extreme
April Weather22°C (71°F)125 mm (4.9 inches)82%very high
May Weather18°C (65°F)197 mm (7.8 inches)82%high
June Weather16°C (62°F)96 mm (3.8 inches)73%moderate
July Weather16°C (60°F)90 mm (3.5 inches)67%high
August Weather17°C (64°F)79 mm (3.1 inches)49%high
September Weather20°C (69°F)101 mm (4.0 inches)54%very high
October Weather22°C (72°F)146 mm (5.7 inches)58%extreme
November Weather24°C (76°F)140 mm (5.5 inches)69%extreme
December Weather26°C (79°F)93 mm (3.6 inches)84%extreme

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