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September Weather in San Carlos, Argentina

Last updated: August 22, 2025

In San Carlos, Argentina, the average temperature in September hovers around 12°C (55°F), with a notable range from a brisk -2°C (29°F) to a warm 29°C (84°F). During this time, expect approximately 34 mm (1.3 in) of precipitation over about 5 days, while the average humidity rests at a comfortable 45%. Prepare accordingly for a mix of pleasant and cooler days!

September Temperature in San Carlos

In September in San Carlos, the average temperature is 12°C (55°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as -2°C (29°F). This wide range of temperatures makes San Carlos an ideal destination for travelers seeking diverse weather experiences.

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 12°C (55°F), with highs reaching up to 29°C (84°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec696663585145454954596467
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 34 mm (1.3 in) over the course of 5 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 34 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec14813310810637161463459159135
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 45%. With an average temperature of 12°C (55°F), this humidity feels like a crisp, refreshing breeze that invigorates your senses, making it ideal for exploring the outdoors and enjoying long walks without feeling overly sticky or uncomfortable.

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 45%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec49%54%57%73%75%67%55%43%45%41%51%49%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412964579121415
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 Weather20°C (69°F)148 mm (5.8 inches)49%extreme
February Weather19°C (66°F)133 mm (5.2 inches)54%extreme
March Weather17°C (63°F)108 mm (4.2 inches)57%extreme
April Weather15°C (59°F)106 mm (4.2 inches)73%very high
May Weather11°C (52°F)37 mm (1.4 inches)75%high
June Weather7°C (46°F)16 mm (0.6 inches)67%moderate
July Weather7°C (45°F)14 mm (0.6 inches)54%moderate
August Weather10°C (49°F)6 mm (0.2 inches)43%high
September Weather12°C (55°F)34 mm (1.3 inches)45%very high
October Weather15°C (59°F)59 mm (2.3 inches)41%extreme
November Weather18°C (64°F)159 mm (6.3 inches)51%extreme
December Weather19°C (67°F)135 mm (5.3 inches)49%extreme

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