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September Weather in Coasa, Peru

Last updated: August 27, 2025

In September, the average temperature in Coasa, Peru hovers around 6°C (43°F), with a minimum dip of -4°C (25°F) and a comfortable maximum of 15°C (60°F). Expect 199 mm (7.8 in) of precipitation spread over 28 days, accompanied by an average humidity of 67%, creating a cool and damp atmosphere.

September Temperature in Coasa

In September in Coasa, the average temperature is 6°C (43°F), with a maximum that can reach 15°C (60°F) and a minimum that can drop as low as -4°C (25°F). This variation in temperature makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates September temperature patterns in Coasa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coasa, September typically has an average temperature of 6°C (43°F), with highs reaching up to 15°C (60°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec454545454341404142444646
Data source: Temperature data for Coasa 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 Coasa

In Coasa in September, the total precipitation amount is 199 mm (7.8 in) accumulated over a span of 28 days.

September Precipitation Trends in Coasa

The chart displays monthly precipitation patterns in Coasa, 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 Coasa, September typically receives around 199 mm (7.8 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec33144233026917715088151199273323426
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Coasa

In Coasa in September humidity is 67%. With an average temperature of 6°C (43°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor exploration somewhat uncomfortable and prompting a need for warm, moisture-wicking clothing while traveling.

September Average Humidity in Coasa

This chart illustrates the average monthly humidity levels in Coasa, 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 Coasa is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%92%91%87%76%57%51%67%77%85%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Coasa

In Coasa in September, the maximum UV index is 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, you can check the hourly UV index in Coasa.

Maximum UV Index Levels in Coasa for September

The chart shows the monthly maximum UV Index (UVI) for Coasa 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 Coasa typically reaches 18, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec201920171311121518192020
Data source: Coasa 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 Coasa Compares to Other Months

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

This table compares monthly weather conditions in Coasa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)331 mm (13.0 inches)92%extreme
February Weather7°C (45°F)442 mm (17.4 inches)93%extreme
March Weather7°C (45°F)330 mm (13.0 inches)92%extreme
April Weather7°C (45°F)269 mm (10.6 inches)91%extreme
May Weather6°C (43°F)177 mm (7.0 inches)87%extreme
June Weather5°C (42°F)150 mm (5.9 inches)76%extreme
July Weather5°C (41°F)88 mm (3.5 inches)57%extreme
August Weather5°C (41°F)151 mm (5.9 inches)51%extreme
September Weather6°C (43°F)199 mm (7.8 inches)67%extreme
October Weather7°C (45°F)273 mm (10.8 inches)77%extreme
November Weather8°C (46°F)323 mm (12.7 inches)85%extreme
December Weather8°C (46°F)426 mm (16.8 inches)90%extreme

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