nomadseason

September Weather in San Pedro, Bolivia

Last updated: August 22, 2025

In September, the average temperature in San Pedro, Bolivia reaches a warm 26°C (80°F). However, it can experience fluctuations, with minimum temperatures dipping to 8°C (46°F) and soaring to a sweltering 40°C (104°F). With an average precipitation of 32 mm (1.3 in) spread over 6 days, and a moderate humidity level at 35%, it's essential to be prepared for the varied weather conditions this month!

September Temperature in San Pedro

In September in San Pedro, the average temperature is 26°C (80°F). Maximum temperatures can reach 40°C (104°F), while minimums can drop to as low as 8°C (46°F). This diverse temperature range makes San Pedro an ideal destination for travelers seeking both warmth and cooler evenings.

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

The chart illustrates September temperature patterns in San Pedro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Pedro, September typically has an average temperature of 26°C (80°F), with highs reaching up to 40°C (104°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec818079777370707480818081
Data source: Temperature data for San Pedro generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in San Pedro

In San Pedro in September, the total precipitation amount is 32 mm (1.3 in) over the course of 6 days.

September Precipitation Trends in San Pedro

The chart displays monthly precipitation patterns in San Pedro, 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 Pedro, September typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec1091271137856276303290136141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in San Pedro

In San Pedro in September, humidity is 35%. With an average temperature of 26°C (80°F), this humidity feels like a warm and inviting embrace, making it ideal for leisurely strolls and outdoor explorations without the discomfort of excessive stickiness.

September Average Humidity in San Pedro

This chart illustrates the average monthly humidity levels in San Pedro, 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 Pedro is approximately 35%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%87%86%80%66%51%40%35%36%69%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Pedro

In San Pedro 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 Pedro.

Maximum UV Index Levels in San Pedro for September

The chart shows the monthly maximum UV Index (UVI) for San Pedro 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 Pedro typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515129891011141516
Data source: San Pedro 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 Pedro Compares to Other Months

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

This table compares monthly weather conditions in San Pedro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)109 mm (4.3 inches)87%extreme
February Weather27°C (80°F)127 mm (5.0 inches)85%extreme
March Weather26°C (80°F)113 mm (4.5 inches)87%extreme
April Weather25°C (77°F)78 mm (3.1 inches)86%extreme
May Weather23°C (73°F)56 mm (2.2 inches)80%very high
June Weather21°C (70°F)27 mm (1.1 inches)66%very high
July Weather21°C (71°F)6 mm (0.2 inches)51%very high
August Weather23°C (74°F)30 mm (1.2 inches)40%very high
September Weather26°C (80°F)32 mm (1.3 inches)35%extreme
October Weather27°C (82°F)90 mm (3.5 inches)36%extreme
November Weather27°C (81°F)136 mm (5.4 inches)69%extreme
December Weather27°C (81°F)141 mm (5.5 inches)85%extreme

Compare San Pedro's Climate with Cities Worldwide