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September Weather in Selva, Argentina

Last updated: August 22, 2025

In Selva, Argentina, the average temperature in September hovers around 18°C (65°F). Daily temperatures can vary widely, with a minimum of 5°C (41°F) and soaring up to a maximum of 40°C (104°F). During this month, you can expect 41 mm (1.6 in) of precipitation over approximately 6 days, while the average humidity sits comfortably at 50%.

September Temperature in Selva

In September in Selva, the average temperature is 18°C (65°F). The maximum can reach 40°C (104°F), and the minimum can be as low as 5°C (41°F). Travelers should be prepared for both warm days and cooler evenings when visiting during this time.

September Weather in Selva: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Selva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Selva, September typically has an average temperature of 18°C (65°F), with highs reaching up to 40°C (104°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec817874706257555965707579
Data source: Temperature data for Selva 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 Selva

In Selva in September, the precipitation amount is 41 mm (1.6 in) over the course of 6 days.

September Precipitation Trends in Selva

The chart displays monthly precipitation patterns in Selva, 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 Selva, September typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec12094938076262925417813190
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Selva

In Selva in September humidity is 50%. With an average temperature of 18°C (65°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as you can enjoy outdoor activities without feeling overly sticky or fatigued.

September Average Humidity in Selva

This chart illustrates the average monthly humidity levels in Selva, 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 Selva is approximately 50%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec60%59%65%78%84%74%53%41%50%47%53%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Selva

In Selva 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 Selva.

Maximum UV Index Levels in Selva for September

The chart shows the monthly maximum UV Index (UVI) for Selva 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 Selva typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141412965579121414
Data source: Selva 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 Selva Compares to Other Months

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

This table compares monthly weather conditions in Selva, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)120 mm (4.7 inches)60%extreme
February Weather26°C (78°F)94 mm (3.7 inches)59%extreme
March Weather23°C (75°F)93 mm (3.7 inches)65%extreme
April Weather21°C (70°F)80 mm (3.2 inches)78%very high
May Weather17°C (62°F)76 mm (3.0 inches)84%high
June Weather14°C (57°F)26 mm (1.0 inches)74%moderate
July Weather13°C (55°F)29 mm (1.1 inches)52%moderate
August Weather15°C (60°F)25 mm (1.0 inches)41%high
September Weather18°C (65°F)41 mm (1.6 inches)50%very high
October Weather21°C (70°F)78 mm (3.1 inches)47%extreme
November Weather24°C (75°F)131 mm (5.2 inches)53%extreme
December Weather26°C (80°F)90 mm (3.6 inches)67%extreme

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