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September Weather in San Lorenzo, Peru

Last updated: August 27, 2025

In September, the average temperature in San Lorenzo, Peru reaches a pleasant 27°C (81°F). However, temperatures can vary significantly, with minimums dipping to 15°C (59°F) and maximums soaring up to 38°C (100°F). During this month, expect around 82 mm (3.2 in) of precipitation spread across 11 days, and a comfortably low average humidity of 33%. Enjoy the warmth and prepare for occasional showers!

September Temperature in San Lorenzo

In September in San Lorenzo, the average temperature is 27°C (81°F), with maximums reaching up to 38°C (100°F) and minimums dropping as low as 15°C (59°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in San Lorenzo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Lorenzo, September typically has an average temperature of 27°C (81°F), with highs reaching up to 38°C (100°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec787878777674757881807978
Data source: Temperature data for San Lorenzo 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 Lorenzo

In San Lorenzo in September, the precipitation amount is 82 mm (3.2 in) over the course of 11 days.

September Precipitation Trends in San Lorenzo

The chart displays monthly precipitation patterns in San Lorenzo, 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 Lorenzo, September typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2452712491849838252682170229290
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Lorenzo

In San Lorenzo in September humidity is 33%. With an average temperature of 27°C (81°F), this humidity feels like a comfortable breeze on a warm day, making it quite pleasant for traveling and exploring the surroundings.

September Average Humidity in San Lorenzo

This chart illustrates the average monthly humidity levels in San Lorenzo, 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 Lorenzo is approximately 33%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%89%84%67%46%37%33%44%73%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Lorenzo

In San Lorenzo in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Lorenzo.

Maximum UV Index Levels in San Lorenzo for September

The chart shows the monthly maximum UV Index (UVI) for San Lorenzo 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 Lorenzo typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151615141210101113151615
Data source: San Lorenzo 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 Lorenzo Compares to Other Months

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

This table compares monthly weather conditions in San Lorenzo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)245 mm (9.6 inches)88%extreme
February Weather25°C (78°F)271 mm (10.7 inches)87%extreme
March Weather25°C (78°F)249 mm (9.8 inches)87%extreme
April Weather25°C (78°F)183 mm (7.2 inches)89%extreme
May Weather24°C (76°F)98 mm (3.9 inches)84%extreme
June Weather24°C (75°F)38 mm (1.5 inches)67%very high
July Weather24°C (75°F)25 mm (1.0 inches)46%very high
August Weather25°C (78°F)26 mm (1.0 inches)37%extreme
September Weather27°C (81°F)82 mm (3.2 inches)33%extreme
October Weather27°C (80°F)170 mm (6.7 inches)44%extreme
November Weather26°C (79°F)229 mm (9.0 inches)73%extreme
December Weather26°C (79°F)290 mm (11.4 inches)88%extreme

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