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September Weather in San Pedro, Peru

Last updated: August 27, 2025

In September, the average temperature in San Pedro, Peru is a comfortable 22°C (71°F), with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 33°C (91°F). Expect some rainy days, with 84 mm (3.3 in) of precipitation spread over 19 days. The air is relatively dry, with an average humidity of 49%. Enjoy your stay!

September Temperature in San Pedro

In September in San Pedro, the average temperature is 22°C (71°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 14°C (58°F). Overall, this makes San Pedro an ideal destination for travelers looking for pleasant weather during this time.

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 22°C (71°F), with highs reaching up to 33°C (91°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec737472727170697071727473
Data source: Temperature data for San Pedro 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 Pedro

In San Pedro in September, the total precipitation amount is 84 mm (3.3 in) spread over 19 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 84 mm (3.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1008315916414498927984114119127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Pedro

In San Pedro in September, humidity is 49%. With an average temperature of 22°C (71°F), this humidity feels like a comfortable and pleasant warmth for traveling, allowing for enjoyable outdoor activities without feeling overly sticky or oppressive.

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 49%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%85%87%88%73%51%44%49%71%77%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 an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, 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 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161617171412121315161514
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 Weather23°C (73°F)100 mm (3.9 inches)82%extreme
February Weather23°C (74°F)83 mm (3.3 inches)80%extreme
March Weather22°C (73°F)159 mm (6.3 inches)85%extreme
April Weather22°C (72°F)164 mm (6.4 inches)87%extreme
May Weather22°C (71°F)144 mm (5.7 inches)88%extreme
June Weather21°C (70°F)98 mm (3.8 inches)73%extreme
July Weather20°C (69°F)92 mm (3.6 inches)51%extreme
August Weather21°C (70°F)79 mm (3.1 inches)44%extreme
September Weather22°C (71°F)84 mm (3.3 inches)49%extreme
October Weather22°C (73°F)114 mm (4.5 inches)71%extreme
November Weather23°C (74°F)119 mm (4.7 inches)77%extreme
December Weather23°C (73°F)127 mm (5.0 inches)85%extreme

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