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September Weather in San Matias, Bolivia

Last updated: August 22, 2025

In September, the average temperature in San Matias, Bolivia reaches a warm 29°C (85°F), with extremes ranging from a cool 10°C (51°F) to a scorching 42°C (107°F). During this month, expect 18 mm (0.7 in) of precipitation over approximately 3 days, while enjoying a comfortable average humidity of 35%.

September Temperature in San Matias

In September in San Matias, the average temperature is 29°C (85°F). Maximums can reach 42°C (107°F) and minimums can dip as low as 10°C (51°F). Travelers should prepare for a wide range of temperatures, ensuring they pack for both warm days and cooler nights.

September Weather in San Matias: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Matias, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Matias, September typically has an average temperature of 29°C (85°F), with highs reaching up to 42°C (107°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec828181807675757985858382
Data source: Temperature data for San Matias 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 San Matias

In San Matias in September, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

September Precipitation Trends in San Matias

The chart displays monthly precipitation patterns in San Matias, 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 San Matias, September typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec15121917210847111151861147165
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Matias

In San Matias in September, humidity is 35%. With an average temperature of 29°C (85°F), this humidity feels like a comfortable warmth that is easy to enjoy while traveling, allowing you to explore without feeling overly sticky or weighed down by the heat.

September Average Humidity in San Matias

This chart illustrates the average monthly humidity levels in San Matias, 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 San Matias is approximately 35%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%88%87%82%69%52%43%35%35%67%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Matias

In San Matias in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Matias.

Maximum UV Index Levels in San Matias for September

The chart shows the monthly maximum UV Index (UVI) for San Matias 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 San Matias typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1616151310891111141516
Data source: San Matias 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 San Matias Compares to Other Months

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

This table compares monthly weather conditions in San Matias, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)151 mm (5.9 inches)87%extreme
February Weather27°C (81°F)219 mm (8.6 inches)86%extreme
March Weather27°C (81°F)172 mm (6.8 inches)88%extreme
April Weather27°C (80°F)108 mm (4.2 inches)87%extreme
May Weather25°C (77°F)47 mm (1.8 inches)82%very high
June Weather24°C (75°F)11 mm (0.4 inches)69%very high
July Weather24°C (75°F)1 mm (0.0 inches)52%very high
August Weather26°C (79°F)15 mm (0.6 inches)43%extreme
September Weather29°C (85°F)18 mm (0.7 inches)35%extreme
October Weather30°C (85°F)61 mm (2.4 inches)35%extreme
November Weather28°C (83°F)147 mm (5.8 inches)67%extreme
December Weather28°C (83°F)165 mm (6.5 inches)85%extreme

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