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September Weather in La Paz, Argentina

Last updated: August 22, 2025

In La Paz, Argentina, the average temperature in September hovers around 17°C (62°F), providing a pleasant climate for outdoor activities. Be prepared for a wide temperature range, with lows dipping to -1°C (30°F) and highs soaring to 37°C (98°F). Expect some precipitation, with an average of 14 mm (0.5 in) over just 3 days, while the average humidity levels sit at a comfortable 51%. Enjoy the diversity this month brings!

September Temperature in La Paz

In September in La Paz, the average temperature is 17°C (62°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as -1°C (30°F). This variation means it's essential to pack for both warm days and chilly nights while traveling.

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 (62°F), with highs reaching up to 37°C (98°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec817873665750495562687580
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 14 mm (0.5 in) over the course of 3 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 14 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec5855633830129414335335
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 51%. With an average temperature of 17°C (62°F), this humidity feels like a pleasant embrace, making it perfect for traveling as long as you stay hydrated and enjoy the mild climate.

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 51%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%46%54%65%69%64%65%60%51%49%44%36%
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 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 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151311854468111415
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 Weather27°C (81°F)58 mm (2.3 inches)40%extreme
February Weather25°C (78°F)55 mm (2.2 inches)46%extreme
March Weather23°C (73°F)63 mm (2.5 inches)54%extreme
April Weather19°C (66°F)38 mm (1.5 inches)65%very high
May Weather14°C (57°F)30 mm (1.2 inches)69%moderate
June Weather10°C (50°F)12 mm (0.5 inches)64%moderate
July Weather9°C (49°F)9 mm (0.4 inches)65%moderate
August Weather13°C (55°F)4 mm (0.1 inches)60%high
September Weather17°C (62°F)14 mm (0.5 inches)51%very high
October Weather20°C (68°F)33 mm (1.3 inches)49%extreme
November Weather24°C (75°F)53 mm (2.1 inches)44%extreme
December Weather26°C (80°F)35 mm (1.4 inches)35%extreme

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