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September Weather in Dieciocho de Julio, Uruguay

Last updated: August 28, 2025

In September, the average temperature in Dieciocho de Julio, Uruguay hovers around 15°C (58°F), with a minimum dip to 5°C (41°F) and a pleasant maximum reaching 27°C (80°F). Expect 109 mm (4.3 in) of precipitation over approximately 10 days, making it a month of refreshing showers. With an average humidity of 82%, the atmosphere is both invigorating and comfortable.

September Temperature in Dieciocho de Julio

In September in Dieciocho de Julio, the average temperature is 15°C (58°F). Maximums can reach 27°C (80°F), while minimums can drop as low as 5°C (41°F). This makes Dieciocho de Julio a great destination for travelers looking to enjoy mild weather and comfortable exploration.

September Weather in Dieciocho de Julio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Dieciocho de Julio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dieciocho de Julio, September typically has an average temperature of 15°C (58°F), with highs reaching up to 27°C (80°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec737371676156545558616670
Data source: Temperature data for Dieciocho de Julio 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 Dieciocho de Julio

In Dieciocho de Julio in September, the precipitation amount is 109 mm (4.3 in) spread over 10 days.

September Precipitation Trends in Dieciocho de Julio

The chart displays monthly precipitation patterns in Dieciocho de Julio, 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 Dieciocho de Julio, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1041246682691371051071091326750
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Dieciocho de Julio

In Dieciocho de Julio in September humidity is 82%. With an average temperature of 15°C (58°F), this humidity feels like a warm, damp blanket wrapping around you, making outdoor exploration a bit uncomfortable and causing you to sweat lightly even during mild activities.

September Average Humidity in Dieciocho de Julio

This chart illustrates the average monthly humidity levels in Dieciocho de Julio, 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 Dieciocho de Julio is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%74%76%82%87%86%81%78%82%82%79%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Dieciocho de Julio

In Dieciocho de Julio 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 Dieciocho de Julio.

Maximum UV Index Levels in Dieciocho de Julio for September

The chart shows the monthly maximum UV Index (UVI) for Dieciocho de Julio 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 Dieciocho de Julio typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854468111314
Data source: Dieciocho de Julio 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 Dieciocho de Julio Compares to Other Months

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

This table compares monthly weather conditions in Dieciocho de Julio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)104 mm (4.1 inches)71%extreme
February Weather23°C (73°F)124 mm (4.9 inches)74%extreme
March Weather21°C (71°F)66 mm (2.6 inches)76%extreme
April Weather20°C (68°F)82 mm (3.2 inches)81%very high
May Weather16°C (61°F)69 mm (2.7 inches)87%moderate
June Weather14°C (57°F)137 mm (5.4 inches)86%moderate
July Weather12°C (54°F)105 mm (4.2 inches)81%moderate
August Weather13°C (55°F)107 mm (4.2 inches)78%high
September Weather15°C (58°F)109 mm (4.3 inches)82%very high
October Weather16°C (62°F)132 mm (5.2 inches)82%extreme
November Weather19°C (67°F)67 mm (2.6 inches)79%extreme
December Weather21°C (70°F)50 mm (2.0 inches)77%extreme

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