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September Weather in Santa Rosa, Peru

Last updated: August 27, 2025

In September, the average temperature in Santa Rosa, Peru is a comfortable 16°C (61°F). Expect minimums as low as 6°C (43°F) and maximums reaching up to 26°C (79°F). This month sees about 22 mm (0.9 in) of precipitation spread across 6 days, with an average humidity of 52%.

September Temperature in Santa Rosa

In September in Santa Rosa, the average temperature is 16°C (61°F). The maximum can reach 26°C (79°F), while the minimum can be as low as 6°C (43°F). This mild climate makes it an ideal time for travelers to explore comfortably and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa, September typically has an average temperature of 16°C (61°F), with highs reaching up to 26°C (79°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec626161616059585961626362
Data source: Temperature data for Santa Rosa 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 Rosa

In Santa Rosa in September, the precipitation amount is 22 mm (0.9 in) over a span of 6 days.

September Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, 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 Rosa, September typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec1391581437136201916225698117
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santa Rosa

In Santa Rosa in September, humidity is 52%. With an average temperature of 16°C (61°F), this humidity feels like a refreshing yet slightly damp embrace, making it a comfortable climate for exploring outdoor attractions or leisurely strolls through the city.

September Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, 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 Rosa is approximately 52%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%92%90%85%70%55%44%52%65%81%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Santa Rosa

In Santa Rosa 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 Santa Rosa.

Maximum UV Index Levels in Santa Rosa for September

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa 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 Rosa typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181717161311121315171716
Data source: Santa Rosa 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 Rosa Compares to Other Months

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

This table compares monthly weather conditions in Santa Rosa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)139 mm (5.5 inches)93%extreme
February Weather16°C (62°F)158 mm (6.2 inches)92%extreme
March Weather16°C (61°F)143 mm (5.6 inches)92%extreme
April Weather16°C (61°F)71 mm (2.8 inches)90%extreme
May Weather16°C (61°F)36 mm (1.4 inches)85%extreme
June Weather15°C (59°F)20 mm (0.8 inches)70%extreme
July Weather15°C (58°F)19 mm (0.7 inches)54%extreme
August Weather15°C (59°F)16 mm (0.6 inches)44%extreme
September Weather16°C (61°F)22 mm (0.9 inches)52%extreme
October Weather17°C (62°F)56 mm (2.2 inches)65%extreme
November Weather17°C (63°F)98 mm (3.9 inches)81%extreme
December Weather17°C (63°F)117 mm (4.6 inches)89%extreme

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