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September Weather in Bella Union, Uruguay

Last updated: August 28, 2025

In September, the average temperature in Bella Union, Uruguay hovers around 18°C (64°F). Expect temperatures to fluctuate, with a minimum of 3°C (38°F) and a maximum reaching 35°C (95°F). Be prepared for some rain, as precipitation averages 133 mm (5.2 in) over 8 days. The average humidity during this time is around 60%, creating a comfortable but slightly damp atmosphere.

September Temperature in Bella Union

In September in Bella Union, the average temperature is 18°C (64°F). Maximum temperatures can reach 35°C (95°F), while the minimum can drop as low as 3°C (38°F). Overall, this climate offers a pleasant variety, making it an ideal time for outdoor adventures and exploring the beauty of Bella Union.

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

The chart illustrates September temperature patterns in Bella Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bella Union, September typically has an average temperature of 18°C (64°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec797774696157565964687377
Data source: Temperature data for Bella Union 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 Union

In Bella Union in September, the total precipitation amount is 133 mm (5.2 in) during a span of 8 days.

September Precipitation Trends in Bella Union

The chart displays monthly precipitation patterns in Bella Union, 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 Union, September typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec14595931211419864941331189970
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bella Union

In Bella Union in September humidity is 60%. With an average temperature of 18°C (64°F), this humidity feels like a gentle and refreshing embrace, making it perfect for leisurely strolls and sightseeing.

September Average Humidity in Bella Union

This chart illustrates the average monthly humidity levels in Bella Union, 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 Union is approximately 60%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%57%69%78%82%81%66%54%61%59%58%68%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bella Union

In Bella Union 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 Bella Union.

Maximum UV Index Levels in Bella Union for September

The chart shows the monthly maximum UV Index (UVI) for Bella Union 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 Union typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151312964579121414
Data source: Bella Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Bella Union, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)144 mm (5.7 inches)59%extreme
February Weather25°C (78°F)95 mm (3.7 inches)56%extreme
March Weather23°C (74°F)93 mm (3.7 inches)69%extreme
April Weather21°C (69°F)121 mm (4.8 inches)78%very high
May Weather16°C (62°F)141 mm (5.5 inches)82%high
June Weather14°C (58°F)98 mm (3.9 inches)81%moderate
July Weather13°C (56°F)64 mm (2.5 inches)66%moderate
August Weather15°C (59°F)94 mm (3.7 inches)54%high
September Weather18°C (64°F)133 mm (5.2 inches)60%very high
October Weather20°C (68°F)118 mm (4.6 inches)59%extreme
November Weather23°C (73°F)99 mm (3.9 inches)57%extreme
December Weather25°C (77°F)70 mm (2.8 inches)68%extreme

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