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September Weather in La Paz, Argentina

Last updated: August 22, 2025

In September, the average temperature in La Paz, Argentina is a pleasant 17°C (63°F). However, be prepared for a range of temperatures: while it can dip to a cool 3°C (37°F), it may also soar to a warm 34°C (93°F). Expect about 76 mm (3.0 in) of precipitation spread over 7 days, with an average humidity level of 60%. Plan your activities accordingly for an enjoyable experience!

September Temperature in La Paz

In September in La Paz, the average temperature is 17°C (63°F). Maximums can reach 34°C (93°F), while minimums can drop to as low as 3°C (37°F). Travelers should be prepared for warm days and cool nights.

September Weather in La Paz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Paz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Paz, September typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec797673686156545863687376
Data source: Temperature data for La Paz 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 La Paz

In La Paz in September, the precipitation amount is 76 mm (3.0 in) over a period of 7 days.

September Precipitation Trends in La Paz

The chart displays monthly precipitation patterns in La Paz, 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 La Paz, September typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec108999210013775548676927480
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Paz

In La Paz in September humidity is 60%. With an average temperature of 17°C (63°F), this humidity feels like a slight weight in the air, making it perfect for leisurely strolls but a bit sticky for intense outdoor activities.

September Average Humidity in La Paz

This chart illustrates the average monthly humidity levels in La Paz, 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 La Paz 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 La Paz

In La Paz 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 La Paz.

Maximum UV Index Levels in La Paz for September

The chart shows the monthly maximum UV Index (UVI) for La Paz 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 La Paz typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151312964569111414
Data source: La Paz 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 La Paz Compares to Other Months

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

This table compares monthly weather conditions in La Paz, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)108 mm (4.3 inches)59%extreme
February Weather25°C (77°F)99 mm (3.9 inches)56%extreme
March Weather23°C (73°F)92 mm (3.6 inches)69%extreme
April Weather20°C (68°F)100 mm (4.0 inches)78%very high
May Weather16°C (61°F)137 mm (5.4 inches)82%high
June Weather13°C (56°F)75 mm (3.0 inches)81%moderate
July Weather12°C (55°F)54 mm (2.1 inches)66%moderate
August Weather14°C (58°F)86 mm (3.4 inches)54%high
September Weather17°C (63°F)76 mm (3.0 inches)60%very high
October Weather20°C (68°F)92 mm (3.6 inches)59%extreme
November Weather23°C (73°F)74 mm (2.9 inches)57%extreme
December Weather25°C (77°F)80 mm (3.1 inches)68%extreme

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