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September Weather in San Buenaventura, Peru

Last updated: August 27, 2025

In September, the average temperature in San Buenaventura, Peru hovers around 12°C (54°F), with a minimum of 5°C (40°F) and a maximum reaching 17°C (63°F). Expect about 221 mm (8.7 in) of precipitation spread over 25 days, giving you a 40% average humidity level. Stay prepared for the variability of the weather!

September Temperature in San Buenaventura

In September in San Buenaventura, the average temperature is 12°C (54°F). The maximum can reach 17°C (63°F), while the minimum can drop to as low as 5°C (40°F). This mild climate makes San Buenaventura a pleasant destination for travelers looking to explore without the extremes of summer heat or winter chill.

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

The chart illustrates September temperature patterns in San Buenaventura, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Buenaventura, September typically has an average temperature of 12°C (54°F), with highs reaching up to 17°C (63°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec525252535354535454535453
Data source: Temperature data for San Buenaventura 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 Buenaventura

In San Buenaventura in September, the precipitation amount is 221 mm (8.7 in), occurring over the course of 25 days.

September Precipitation Trends in San Buenaventura

The chart displays monthly precipitation patterns in San Buenaventura, 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 Buenaventura, September typically receives around 221 mm (8.7 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec339360452275144798996221197170220
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Buenaventura

In San Buenaventura in September humidity is 40%. With an average temperature of 12°C (54°F), this humidity feels like a refreshing coolness, making it comfortable for traveling as you can enjoy outdoor activities without feeling overheated.

September Average Humidity in San Buenaventura

This chart illustrates the average monthly humidity levels in San Buenaventura, 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 Buenaventura is approximately 40%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Buenaventura

In San Buenaventura 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 Buenaventura.

Maximum UV Index Levels in San Buenaventura for September

The chart shows the monthly maximum UV Index (UVI) for San Buenaventura 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 Buenaventura typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161717151211121315161616
Data source: San Buenaventura 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 Buenaventura Compares to Other Months

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

This table compares monthly weather conditions in San Buenaventura, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)339 mm (13.4 inches)91%extreme
February Weather11°C (53°F)360 mm (14.2 inches)90%extreme
March Weather11°C (53°F)452 mm (17.8 inches)91%extreme
April Weather12°C (53°F)275 mm (10.8 inches)89%extreme
May Weather12°C (54°F)144 mm (5.7 inches)85%extreme
June Weather12°C (54°F)79 mm (3.1 inches)65%extreme
July Weather12°C (54°F)89 mm (3.5 inches)47%extreme
August Weather12°C (54°F)96 mm (3.8 inches)38%extreme
September Weather12°C (54°F)221 mm (8.7 inches)40%extreme
October Weather12°C (53°F)197 mm (7.8 inches)56%extreme
November Weather12°C (54°F)170 mm (6.7 inches)76%extreme
December Weather12°C (54°F)220 mm (8.7 inches)90%extreme

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