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September Weather in Santa Lucia, Peru

Last updated: August 27, 2025

In Santa Lucia, Peru, the average temperature in September hovers around 22°C (71°F). While you might enjoy sunny days with a maximum reaching 32°C (90°F), be prepared for cooler nights with temperatures dipping to 13°C (55°F). Expect 162 mm (6.4 in) of precipitation spread over 24 days, and a comfortable average humidity of 37%.

September Temperature in Santa Lucia

In September, in Santa Lucia, the average temperature is 22°C (71°F). The maximum can reach 32°C (90°F), while the minimum can drop as low as 13°C (55°F). This pleasant climate makes Santa Lucia an ideal destination for travelers seeking comfortable weather and enjoyable outdoor activities.

September Weather in Santa Lucia: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Lucia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Lucia, September typically has an average temperature of 22°C (71°F), with highs reaching up to 32°C (90°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec707170707070697071717271
Data source: Temperature data for Santa Lucia 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 Santa Lucia

In Santa Lucia in September, the precipitation amount is 162 mm (6.4 in) over a span of 24 days.

September Precipitation Trends in Santa Lucia

The chart displays monthly precipitation patterns in Santa Lucia, 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 Santa Lucia, September typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec28929033827015413181104162276269276
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Lucia

In Santa Lucia in September humidity is 37%. With an average temperature of 22°C (71°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as you can enjoy outdoor activities without feeling overheated or sticky.

September Average Humidity in Santa Lucia

This chart illustrates the average monthly humidity levels in Santa Lucia, 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 Santa Lucia is approximately 37%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%89%89%86%71%44%34%37%50%73%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Lucia

In Santa Lucia 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 Santa Lucia, you can check here.

Maximum UV Index Levels in Santa Lucia for September

The chart shows the monthly maximum UV Index (UVI) for Santa Lucia 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 Santa Lucia typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161616171311121314151615
Data source: Santa Lucia 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 Santa Lucia Compares to Other Months

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

This table compares monthly weather conditions in Santa Lucia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)289 mm (11.4 inches)88%extreme
February Weather22°C (71°F)290 mm (11.4 inches)86%extreme
March Weather21°C (71°F)338 mm (13.3 inches)89%extreme
April Weather21°C (71°F)270 mm (10.6 inches)89%extreme
May Weather21°C (70°F)154 mm (6.1 inches)86%extreme
June Weather21°C (70°F)131 mm (5.1 inches)71%extreme
July Weather21°C (69°F)81 mm (3.2 inches)44%extreme
August Weather21°C (70°F)104 mm (4.1 inches)34%extreme
September Weather22°C (71°F)162 mm (6.4 inches)37%extreme
October Weather22°C (72°F)276 mm (10.8 inches)50%extreme
November Weather22°C (72°F)269 mm (10.6 inches)73%extreme
December Weather22°C (71°F)276 mm (10.9 inches)91%extreme

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