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September Weather in Bella Vista, Argentina

Last updated: August 22, 2025

In September, the average temperature in Bella Vista, Argentina hovers around 18°C (65°F), with a minimum dropping to 3°C (38°F) and a maximum peaking at 36°C (98°F). Expect about 50 mm (2.0 in) of precipitation spread over 7 days, and enjoy a comfortable average humidity level of 58%.

September Temperature in Bella Vista

In September in Bella Vista, the average temperature is 18°C (65°F). Maximums can reach 36°C (98°F) and minimums can dip as low as 3°C (38°F). This variation makes Bella Vista an ideal destination for travelers seeking a diverse climate experience.

September Weather in Bella Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bella Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bella Vista, September typically has an average temperature of 18°C (65°F), with highs reaching up to 36°C (98°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec767370675953535864697375
Data source: Temperature data for Bella Vista 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 Bella Vista

In Bella Vista in September, the precipitation amount is 50 mm (2.0 in) over a span of 7 days.

September Precipitation Trends in Bella Vista

The chart displays monthly precipitation patterns in Bella Vista, 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 Bella Vista, September typically receives around 50 mm (2.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec22525720818011144221550103169188
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bella Vista

In Bella Vista in September humidity is 58%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, creating a comfortable yet slightly muggy atmosphere perfect for leisurely exploration.

September Average Humidity in Bella Vista

This chart illustrates the average monthly humidity levels in Bella Vista, 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 Bella Vista is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%81%83%85%75%62%53%44%58%55%66%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bella Vista

In Bella Vista 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 Bella Vista.

Maximum UV Index Levels in Bella Vista for September

The chart shows the monthly maximum UV Index (UVI) for Bella Vista 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 Bella Vista typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141310756710131515
Data source: Bella Vista 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 Bella Vista Compares to Other Months

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

This table compares monthly weather conditions in Bella Vista, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)225 mm (8.9 inches)79%extreme
February Weather23°C (74°F)257 mm (10.1 inches)81%extreme
March Weather21°C (71°F)208 mm (8.2 inches)83%extreme
April Weather19°C (67°F)180 mm (7.1 inches)85%very high
May Weather15°C (59°F)111 mm (4.4 inches)75%high
June Weather12°C (53°F)44 mm (1.7 inches)62%moderate
July Weather11°C (53°F)22 mm (0.9 inches)53%high
August Weather14°C (58°F)15 mm (0.6 inches)44%high
September Weather18°C (65°F)50 mm (2.0 inches)58%very high
October Weather21°C (70°F)103 mm (4.0 inches)54%extreme
November Weather23°C (73°F)169 mm (6.7 inches)66%extreme
December Weather24°C (75°F)188 mm (7.4 inches)74%extreme

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