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September Weather in San Jacinto, Peru

Last updated: August 27, 2025

In San Jacinto, Peru, the average temperature in September hovers around 15°C (59°F), with a minimum of 10°C (49°F) and a pleasant maximum of 23°C (73°F). Expect 10 mm (0.4 in) of precipitation over just 1 day and enjoy a relatively high average humidity of 76%.

September Temperature in San Jacinto

In September in San Jacinto, the average temperature is 15°C (59°F). Maximums can reach 23°C (73°F), and minimums can be as low as 10°C (49°F). This pleasant climate makes San Jacinto an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in San Jacinto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jacinto, September typically has an average temperature of 15°C (59°F), with highs reaching up to 23°C (73°F) and lows dropping to around 10°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec686868656360595959616365
Data source: Temperature data for San Jacinto 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 Jacinto

In San Jacinto in September, the precipitation amount is 10 mm (0.4 in) over the course of 1 day.

September Precipitation Trends in San Jacinto

The chart displays monthly precipitation patterns in San Jacinto, 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 Jacinto, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec2624117810128108710
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Jacinto

In San Jacinto in September humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

September Average Humidity in San Jacinto

This chart illustrates the average monthly humidity levels in San Jacinto, 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 Jacinto is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%88%89%89%88%84%78%77%76%82%83%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Jacinto

In San Jacinto in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Jacinto, you can check here.

Maximum UV Index Levels in San Jacinto for September

The chart shows the monthly maximum UV Index (UVI) for San Jacinto 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 Jacinto typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161513119101214161616
Data source: San Jacinto 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 Jacinto Compares to Other Months

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

This table compares monthly weather conditions in San Jacinto, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)26 mm (1.0 inches)86%extreme
February Weather20°C (69°F)24 mm (1.0 inches)88%extreme
March Weather20°C (68°F)11 mm (0.4 inches)89%extreme
April Weather18°C (65°F)7 mm (0.3 inches)89%extreme
May Weather17°C (63°F)8 mm (0.3 inches)88%extreme
June Weather16°C (61°F)10 mm (0.4 inches)84%very high
July Weather15°C (59°F)12 mm (0.5 inches)78%very high
August Weather15°C (59°F)8 mm (0.3 inches)76%extreme
September Weather15°C (59°F)10 mm (0.4 inches)76%extreme
October Weather16°C (61°F)8 mm (0.3 inches)82%extreme
November Weather17°C (63°F)7 mm (0.3 inches)83%extreme
December Weather18°C (65°F)10 mm (0.4 inches)83%extreme

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