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September Weather in Casa Blanca, Peru

Last updated: August 27, 2025

In September, the average temperature in Casa Blanca, Peru is a comfortable 15°C (60°F). Expect minimums around 14°C (57°F) and maximums reaching up to 17°C (63°F). With a precipitation amount of just 10 mm (0.4 in) over 0 days, the weather is typically dry. Additionally, the average humidity sits at a pleasant 53%, making it an ideal time to enjoy the outdoors!

September Temperature in Casa Blanca

In September in Casa Blanca, the average temperature is 15°C (60°F), with maximums reaching 17°C (63°F) and minimums dropping as low as 14°C (57°F). It's a mild time to visit, making it perfect for outdoor activities and exploring the local sights.

September Weather in Casa Blanca: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Casa Blanca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casa Blanca, September typically has an average temperature of 15°C (60°F), with highs reaching up to 17°C (63°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec707171686462616060616366
Data source: Temperature data for Casa Blanca 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 Casa Blanca

In Casa Blanca in September, the precipitation amount is 10 mm (0.4 in) during a total of 0 days.

September Precipitation Trends in Casa Blanca

The chart displays monthly precipitation patterns in Casa Blanca, 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 Casa Blanca, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec2423191012171614108810
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Casa Blanca

In Casa Blanca in September humidity is 53%. With average temperature 15°C (60°F), this humidity feels like a refreshing embrace, making it ideal for exploring the sights without feeling too hot or sticky.

September Average Humidity in Casa Blanca

This chart illustrates the average monthly humidity levels in Casa Blanca, 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 Casa Blanca is approximately 53%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%90%89%83%69%56%51%53%68%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Casa Blanca

In Casa Blanca 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 Casa Blanca, you can check here.

Maximum UV Index Levels in Casa Blanca for September

The chart shows the monthly maximum UV Index (UVI) for Casa Blanca 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 Casa Blanca typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151615141110111214151615
Data source: Casa Blanca 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 Casa Blanca Compares to Other Months

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

This table compares monthly weather conditions in Casa Blanca, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (70°F)24 mm (0.9 inches)89%extreme
February Weather22°C (71°F)23 mm (0.9 inches)89%extreme
March Weather22°C (71°F)19 mm (0.7 inches)90%extreme
April Weather20°C (68°F)10 mm (0.4 inches)89%extreme
May Weather18°C (65°F)12 mm (0.5 inches)83%extreme
June Weather17°C (62°F)17 mm (0.7 inches)69%very high
July Weather16°C (61°F)16 mm (0.6 inches)56%extreme
August Weather15°C (60°F)14 mm (0.5 inches)50%extreme
September Weather15°C (60°F)10 mm (0.4 inches)53%extreme
October Weather16°C (61°F)8 mm (0.3 inches)68%extreme
November Weather17°C (63°F)8 mm (0.3 inches)81%extreme
December Weather19°C (66°F)10 mm (0.4 inches)87%extreme

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