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September Weather in Santiago de Tuna, Peru

Last updated: August 27, 2025

In September, the average temperature in Santiago de Tuna, Peru hovers around 13°C (55°F), with a range from a chilly 5°C (41°F) to a pleasant 18°C (66°F). Be prepared for 170 mm (6.7 in) of precipitation spread across 22 days, which contributes to an average humidity of 53%.

September Temperature in Santiago de Tuna

In September in Santiago de Tuna, the average temperature is 13°C (55°F), with maximums reaching 18°C (66°F) and minimums dropping as low as 5°C (41°F). It's advisable to pack layers to stay comfortable during your travels.

September Weather in Santiago de Tuna: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santiago de Tuna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santiago de Tuna, September typically has an average temperature of 13°C (55°F), with highs reaching up to 18°C (66°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec545454545454555555545454
Data source: Temperature data for Santiago de Tuna 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 Santiago de Tuna

In Santiago de Tuna in September, the precipitation amount is 170 mm (6.7 in) over the course of 22 days.

September Precipitation Trends in Santiago de Tuna

The chart displays monthly precipitation patterns in Santiago de Tuna, 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 Santiago de Tuna, September typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec319326406251143553853171213176229
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Santiago de Tuna

In Santiago de Tuna in September humidity is 53%. With an average temperature of 13°C (55°F), this humidity feels like a crisp morning breeze, making it perfect for exploring the sights without feeling too hot or sticky.

September Average Humidity in Santiago de Tuna

This chart illustrates the average monthly humidity levels in Santiago de Tuna, 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 Santiago de Tuna 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 Santiago de Tuna

In Santiago de Tuna in September, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Santiago de Tuna.

Maximum UV Index Levels in Santiago de Tuna for September

The chart shows the monthly maximum UV Index (UVI) for Santiago de Tuna 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 Santiago de Tuna typically reaches 16, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec181818171412131416171817
Data source: Santiago de Tuna 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 Santiago de Tuna Compares to Other Months

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

This table compares monthly weather conditions in Santiago de Tuna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)319 mm (12.6 inches)89%extreme
February Weather12°C (54°F)326 mm (12.8 inches)89%extreme
March Weather12°C (54°F)406 mm (16.0 inches)90%extreme
April Weather12°C (54°F)251 mm (9.9 inches)89%extreme
May Weather12°C (54°F)143 mm (5.6 inches)83%extreme
June Weather12°C (55°F)55 mm (2.2 inches)69%extreme
July Weather13°C (55°F)38 mm (1.5 inches)56%extreme
August Weather13°C (55°F)53 mm (2.1 inches)50%extreme
September Weather13°C (55°F)170 mm (6.7 inches)53%extreme
October Weather12°C (55°F)213 mm (8.4 inches)68%extreme
November Weather12°C (55°F)176 mm (6.9 inches)81%extreme
December Weather12°C (55°F)229 mm (9.0 inches)87%extreme

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