September Weather in Costa Azul, Uruguay

Last updated: August 28, 2025

In September, the average temperature in Costa Azul, Uruguay is a pleasant 13°C (56°F). Expect a minimum dip to 7°C (44°F) and a comfortable high of 23°C (74°F). With 103 mm (4.0 in) of rain spread over 9 days, this month can be quite wet, while the humidity averages a cozy 81%. Plan accordingly to enjoy the beauty of the season!

September Temperature in Costa Azul

In September in Costa Azul, the average temperature is 13°C (56°F). The maximum can reach 23°C (74°F), while the minimum can drop to as low as 7°C (44°F). It's a perfect time to explore the outdoors while enjoying mild temperatures.

September Weather in Costa Azul: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Costa Azul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Costa Azul, September typically has an average temperature of 13°C (56°F), with highs reaching up to 23°C (74°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Costa Azul generated using information from the Copernicus Climate Change Service.

September Precipitation in Costa Azul

In Costa Azul in September, the precipitation amount is 103 mm (4.0 in) over the course of 9 days.

September Precipitation Trends in Costa Azul

The chart displays monthly precipitation patterns in Costa Azul, 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 Costa Azul, September typically receives around 103 mm (4.0 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Costa Azul

In Costa Azul in September, humidity is 81%. With an average temperature of 13°C (56°F), this humidity feels like a blanket of damp air that clings to your skin, making it essential to pack breathable clothing and stay hydrated while exploring.

September Average Humidity in Costa Azul

This chart illustrates the average monthly humidity levels in Costa Azul, 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 Costa Azul is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Costa Azul

In Costa Azul 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 Costa Azul.

Maximum UV Index Levels in Costa Azul for September

The chart shows the monthly maximum UV Index (UVI) for Costa Azul 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 Costa Azul typically reaches 8, which falls under the very high exposure category.

Data source: Costa Azul 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 Costa Azul Compares to Other Months

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

This table compares monthly weather conditions in Costa Azul, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	22°C (71°F)	72 mm (2.8 inches)	75%	extreme
February Weather	22°C (72°F)	79 mm (3.1 inches)	79%	extreme
March Weather	21°C (70°F)	68 mm (2.7 inches)	79%	extreme
April Weather	19°C (67°F)	93 mm (3.7 inches)	79%	high
May Weather	16°C (61°F)	97 mm (3.8 inches)	80%	moderate
June Weather	14°C (57°F)	158 mm (6.2 inches)	80%	moderate
July Weather	12°C (54°F)	121 mm (4.8 inches)	76%	moderate
August Weather	12°C (54°F)	113 mm (4.4 inches)	78%	moderate
September Weather	13°C (56°F)	103 mm (4.0 inches)	81%	very high
October Weather	15°C (59°F)	101 mm (4.0 inches)	79%	extreme
November Weather	18°C (64°F)	55 mm (2.2 inches)	78%	extreme
December Weather	20°C (68°F)	47 mm (1.8 inches)	76%	extreme