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September Weather in La Paz, United States

Last updated: June 24, 2025

In La Paz, United States, the average temperature in September hovers around 20°C (68°F). However, temperatures can vary significantly, with a minimum of 4°C (39°F) and a maximum soaring to 33°C (92°F). During this month, expect 77 mm (3.0 in) of precipitation spread across approximately 8 days, and a humidity level averaging 78% adds to the climate's character. Enjoy the dynamic weather!

September Temperature in La Paz

In September in La Paz, the average temperature is 20°C (68°F). Maximum temperatures can reach up to 33°C (92°F), while minimums can drop as low as 4°C (39°F). It's a great time for travelers to enjoy mild weather and plan outdoor activities.

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 20°C (68°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec272939496172757267554034
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 77 mm (3.0 in) distributed over 8 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 77 mm (3.0 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7274102104154126119109771237762
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 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%86%87%81%82%81%79%78%81%89%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35699101098643
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 Weather-3°C (28°F)72 mm (2.8 inches)85%moderate
February Weather-2°C (29°F)74 mm (2.9 inches)85%moderate
March Weather4°C (40°F)102 mm (4.0 inches)86%high
April Weather9°C (49°F)104 mm (4.1 inches)87%very high
May Weather16°C (62°F)154 mm (6.1 inches)81%very high
June Weather22°C (72°F)126 mm (5.0 inches)82%very high
July Weather24°C (75°F)119 mm (4.7 inches)81%very high
August Weather22°C (73°F)109 mm (4.3 inches)79%very high
September Weather20°C (68°F)77 mm (3.0 inches)78%very high
October Weather13°C (55°F)123 mm (4.8 inches)81%high
November Weather5°C (40°F)77 mm (3.0 inches)89%moderate
December Weather1°C (34°F)62 mm (2.4 inches)86%moderate

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