nomadseason

September Weather in Las Piedras, Uruguay

Last updated: August 28, 2025

In September, the average temperature in Las Piedras, Uruguay is a pleasant 14°C (57°F), with daytime highs reaching up to 28°C (83°F) and nighttime lows dropping to about 3°C (38°F). While you soak up the sun, be prepared for about 81 mm (3.2 in) of precipitation spread over 7 days, contributing to an average humidity of 76%.

September Temperature in Las Piedras

In September in Las Piedras, the average temperature is 14°C (57°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 3°C (38°F). This makes Las Piedras an ideal destination for travelers seeking a mild climate with pleasant daytime warmth and cooler evenings.

September Weather in Las Piedras: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Las Piedras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Piedras, September typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (83°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec747370665854525457616771
Data source: Temperature data for Las Piedras generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Las Piedras

In Las Piedras in September, the precipitation amount is 81 mm (3.2 in) over a period of 7 days.

September Precipitation Trends in Las Piedras

The chart displays monthly precipitation patterns in Las Piedras, 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 Las Piedras, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec70897974112881058381866661
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Las Piedras

In Las Piedras in September humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

September Average Humidity in Las Piedras

This chart illustrates the average monthly humidity levels in Las Piedras, 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 Las Piedras 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 Las Piedras

In Las Piedras 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 Las Piedras.

Maximum UV Index Levels in Las Piedras for September

The chart shows the monthly maximum UV Index (UVI) for Las Piedras 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 Las Piedras typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753468101314
Data source: Las Piedras 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 Las Piedras Compares to Other Months

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

This table compares monthly weather conditions in Las Piedras, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)70 mm (2.8 inches)63%extreme
February Weather23°C (73°F)89 mm (3.5 inches)69%extreme
March Weather21°C (70°F)79 mm (3.1 inches)73%extreme
April Weather19°C (66°F)74 mm (2.9 inches)79%high
May Weather15°C (58°F)112 mm (4.4 inches)82%moderate
June Weather12°C (54°F)87 mm (3.4 inches)80%moderate
July Weather11°C (52°F)105 mm (4.1 inches)72%moderate
August Weather12°C (54°F)83 mm (3.3 inches)72%high
September Weather14°C (57°F)81 mm (3.2 inches)76%very high
October Weather16°C (61°F)86 mm (3.4 inches)71%very high
November Weather19°C (67°F)66 mm (2.6 inches)68%extreme
December Weather22°C (71°F)61 mm (2.4 inches)65%extreme

Compare Las Piedras's Climate with Cities Worldwide