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September Weather in Maldonado, Uruguay

Last updated: August 28, 2025

In September, the average temperature in Maldonado, Uruguay hovers around 13°C (56°F). Expect minimums to dip to 7°C (44°F), while maximums can reach up to 23°C (73°F). Be prepared for some rainfall, as precipitation during this month averages 90 mm (3.5 in) over about 8 days. With an average humidity of 76%, a cozy sweater and an umbrella might be wise companions!

September Temperature in Maldonado

In September in Maldonado, the average temperature is 13°C (56°F). Maximum temperatures can reach 23°C (73°F), while minimums can dip as low as 7°C (44°F). This makes it an ideal time for travelers to enjoy mild weather and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Maldonado, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Maldonado, September typically has an average temperature of 13°C (56°F), with highs reaching up to 23°C (73°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec717270676156535456596467
Data source: Temperature data for Maldonado 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 Maldonado

In Maldonado in September, the precipitation amount is 90 mm (3.5 in) spread over 8 days, indicating a relatively wet period for the region.

September Precipitation Trends in Maldonado

The chart displays monthly precipitation patterns in Maldonado, 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 Maldonado, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec61787698851251209490815357
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Maldonado

In Maldonado in September humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

September Average Humidity in Maldonado

This chart illustrates the average monthly humidity levels in Maldonado, 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 Maldonado is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%69%73%79%83%80%72%72%76%71%68%65%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Maldonado

In Maldonado in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Maldonado.

Maximum UV Index Levels in Maldonado for September

The chart shows the monthly maximum UV Index (UVI) for Maldonado 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 Maldonado typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753468111314
Data source: Maldonado 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 Maldonado Compares to Other Months

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

This table compares monthly weather conditions in Maldonado, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)61 mm (2.4 inches)63%extreme
February Weather22°C (72°F)78 mm (3.1 inches)69%extreme
March Weather21°C (70°F)76 mm (3.0 inches)73%extreme
April Weather19°C (67°F)98 mm (3.9 inches)79%high
May Weather16°C (61°F)85 mm (3.4 inches)82%moderate
June Weather13°C (56°F)125 mm (4.9 inches)80%moderate
July Weather12°C (53°F)120 mm (4.7 inches)72%moderate
August Weather12°C (54°F)94 mm (3.7 inches)72%high
September Weather13°C (56°F)90 mm (3.5 inches)76%very high
October Weather15°C (59°F)81 mm (3.2 inches)71%extreme
November Weather18°C (64°F)53 mm (2.1 inches)68%extreme
December Weather20°C (68°F)57 mm (2.3 inches)65%extreme

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