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September Weather in Buenos Aires, Honduras

Last updated: August 23, 2025

In September, the average temperature in Buenos Aires, Honduras hovers around 23°C (75°F), with minimums dipping to 17°C (63°F) and maximums soaring to 32°C (90°F). This month sees an average precipitation of 310 mm (12.2 in) spread over 28 days, contributing to an average humidity level of 71%.

September Temperature in Buenos Aires

In September in Buenos Aires, the average temperature is 23°C (75°F). Maximums can reach up to 32°C (90°F), while minimums can drop to as low as 17°C (63°F). This makes it a perfect time for travelers to enjoy a comfortable climate while exploring the area's attractions.

September Weather in Buenos Aires: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Buenos Aires, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buenos Aires, September typically has an average temperature of 23°C (75°F), with highs reaching up to 32°C (90°F) and lows dropping to around 17°C (63°F).
JanFebMarAprMayJunJulAugSepOctNovDec677070757675747474737068
Data source: Temperature data for Buenos Aires 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 Buenos Aires

In Buenos Aires in September, the precipitation amount is 310 mm (12.2 in) spread over a period of 28 days.

September Precipitation Trends in Buenos Aires

The chart displays monthly precipitation patterns in Buenos Aires, 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 Buenos Aires, September typically receives around 310 mm (12.2 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec1179310983242342280303310336267121
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Buenos Aires

In Buenos Aires in September, humidity is 71%. With an average temperature of 23°C (75°F), this humidity feels like walking through a warm, damp blanket, making traveling quite sweaty and uncomfortable, especially during the midday sun.

September Average Humidity in Buenos Aires

This chart illustrates the average monthly humidity levels in Buenos Aires, 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 Buenos Aires is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%61%53%51%52%58%63%71%79%79%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Buenos Aires

In Buenos Aires in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Buenos Aires.

Maximum UV Index Levels in Buenos Aires for September

The chart shows the monthly maximum UV Index (UVI) for Buenos Aires 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 Buenos Aires typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141314141312109
Data source: Buenos Aires 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 Buenos Aires Compares to Other Months

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

This table compares monthly weather conditions in Buenos Aires, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (67°F)117 mm (4.6 inches)80%very high
February Weather21°C (70°F)93 mm (3.7 inches)72%extreme
March Weather21°C (71°F)108 mm (4.3 inches)61%extreme
April Weather24°C (75°F)83 mm (3.3 inches)53%extreme
May Weather24°C (76°F)242 mm (9.5 inches)51%extreme
June Weather24°C (75°F)342 mm (13.5 inches)52%extreme
July Weather23°C (74°F)280 mm (11.0 inches)58%extreme
August Weather23°C (74°F)303 mm (11.9 inches)63%extreme
September Weather23°C (75°F)310 mm (12.2 inches)71%extreme
October Weather23°C (73°F)336 mm (13.2 inches)79%extreme
November Weather21°C (70°F)267 mm (10.5 inches)79%very high
December Weather20°C (68°F)121 mm (4.8 inches)74%very high

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