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September Weather in Cajacay, Peru

Last updated: August 27, 2025

In September, the average temperature in Cajacay, Peru is a cool 13°C (55°F), with lows dipping to 5°C (42°F) and highs reaching up to 18°C (65°F). Expect a fair share of rain, with 87 mm (3.4 in) of precipitation spread over 23 days, creating an atmosphere of 78% humidity. Perfect for cozy days indoors or light outdoor activities!

September Temperature in Cajacay

In September in Cajacay, the average temperature is 13°C (55°F). Maximum temperatures can reach 18°C (65°F), while minimums can drop as low as 5°C (42°F). Be sure to pack layers to stay comfortable while exploring the varied weather conditions!

September Weather in Cajacay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cajacay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cajacay, September typically has an average temperature of 13°C (55°F), with highs reaching up to 18°C (65°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec535453545455555555555554
Data source: Temperature data for Cajacay 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 Cajacay

In Cajacay in September, the precipitation amount is 87 mm (3.4 in) spread over 23 days.

September Precipitation Trends in Cajacay

The chart displays monthly precipitation patterns in Cajacay, 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 Cajacay, September typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec2572583372101133829378711996155
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cajacay

In Cajacay in September, humidity is 78%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket enveloping you, making outdoor activities feel steamy and your clothes cling uncomfortably, often leaving you longing for a cool breeze or an air-conditioned escape while exploring.

September Average Humidity in Cajacay

This chart illustrates the average monthly humidity levels in Cajacay, 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 Cajacay is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%89%89%85%77%75%74%78%84%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cajacay

In Cajacay 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 Cajacay.

Maximum UV Index Levels in Cajacay for September

The chart shows the monthly maximum UV Index (UVI) for Cajacay 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 Cajacay typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161717161311121315161615
Data source: Cajacay 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 Cajacay Compares to Other Months

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

This table compares monthly weather conditions in Cajacay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)257 mm (10.1 inches)91%extreme
February Weather12°C (54°F)258 mm (10.2 inches)90%extreme
March Weather12°C (54°F)337 mm (13.3 inches)89%extreme
April Weather12°C (54°F)210 mm (8.3 inches)88%extreme
May Weather12°C (55°F)113 mm (4.5 inches)85%extreme
June Weather13°C (55°F)38 mm (1.5 inches)77%extreme
July Weather13°C (55°F)29 mm (1.1 inches)75%extreme
August Weather13°C (55°F)37 mm (1.4 inches)74%extreme
September Weather13°C (55°F)87 mm (3.4 inches)78%extreme
October Weather13°C (55°F)119 mm (4.7 inches)84%extreme
November Weather13°C (55°F)96 mm (3.8 inches)88%extreme
December Weather12°C (55°F)155 mm (6.1 inches)89%extreme

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