nomadseason

September Weather in San Cristobal, Argentina

Last updated: August 22, 2025

In September, the average temperature in San Cristobal, Argentina hovers around 17°C (63°F), with a minimum plunge to 3°C (37°F) and a maximum spike reaching 38°C (100°F). Expect 53 mm (2.1 in) of precipitation spread over approximately 6 days, with an average humidity level of 59%. Embrace the varied climate as you explore this fascinating locale!

September Temperature in San Cristobal

In September in San Cristobal, the average temperature is 17°C (63°F). Maximums can reach 38°C (100°F), and minimums can be as low as 3°C (37°F). This wide range of temperatures makes San Cristobal a great destination for travelers seeking both warm and cooler weather experiences.

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

The chart illustrates September temperature patterns in San Cristobal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Cristobal, September typically has an average temperature of 17°C (63°F), with highs reaching up to 38°C (100°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec797773686055545763687377
Data source: Temperature data for San Cristobal generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Cristobal

In San Cristobal in September, the precipitation amount is 53 mm (2.1 in) over a span of 6 days.

September Precipitation Trends in San Cristobal

The chart displays monthly precipitation patterns in San Cristobal, 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 Cristobal, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec141951039699494747539010888
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Cristobal

In San Cristobal in September, humidity is 59%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you're prepared for occasional mugginess.

September Average Humidity in San Cristobal

This chart illustrates the average monthly humidity levels in San Cristobal, 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 Cristobal is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%57%65%76%83%78%58%54%59%50%53%57%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Cristobal

In San Cristobal 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 Cristobal.

Maximum UV Index Levels in San Cristobal for September

The chart shows the monthly maximum UV Index (UVI) for San Cristobal 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 Cristobal typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412964579121415
Data source: San Cristobal 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 Cristobal Compares to Other Months

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

This table compares monthly weather conditions in San Cristobal, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)141 mm (5.6 inches)51%extreme
February Weather25°C (77°F)95 mm (3.8 inches)57%extreme
March Weather23°C (73°F)103 mm (4.1 inches)65%extreme
April Weather20°C (68°F)96 mm (3.8 inches)76%very high
May Weather16°C (61°F)99 mm (3.9 inches)83%high
June Weather13°C (56°F)49 mm (1.9 inches)78%moderate
July Weather12°C (54°F)47 mm (1.8 inches)58%moderate
August Weather14°C (58°F)47 mm (1.9 inches)54%high
September Weather17°C (63°F)53 mm (2.1 inches)59%very high
October Weather20°C (68°F)90 mm (3.5 inches)50%extreme
November Weather23°C (73°F)108 mm (4.3 inches)53%extreme
December Weather25°C (78°F)88 mm (3.5 inches)57%extreme

Compare San Cristobal's Climate with Cities Worldwide