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September Weather in Tomas, Peru

Last updated: August 27, 2025

In September, the average temperature in Tomas, Peru hovers around 2°C (37°F). Expect a chill, with minimums dipping as low as -6°C (21°F) and maximums reaching up to 11°C (52°F). The region sees 105 mm (4.1 in) of precipitation across 25 days, contributing to an average humidity of 53%. Prepare accordingly for a brisk and damp month!

September Temperature in Tomas

In September in Tomas, the average temperature is 2°C (37°F), with maximums reaching 11°C (52°F) and minimums dropping as low as -6°C (21°F). Be sure to pack warm clothing if you plan to visit during this time!

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

The chart illustrates September temperature patterns in Tomas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomas, September typically has an average temperature of 2°C (37°F), with highs reaching up to 11°C (52°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec383838373636353536373939
Data source: Temperature data for Tomas 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 Tomas

In Tomas in September, the total precipitation amount reaches 105 mm (4.1 in) over the course of 25 days.

September Precipitation Trends in Tomas

The chart displays monthly precipitation patterns in Tomas, 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 Tomas, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec19922225312692393552105148156190
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tomas

In Tomas in September, humidity is 53%. With an average temperature of 2°C (37°F), this humidity feels like a chilly mist that clings to your skin, making traveling a brisk but invigorating experience.

September Average Humidity in Tomas

This chart illustrates the average monthly humidity levels in Tomas, 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 Tomas 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 Tomas

In Tomas in September, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in Tomas, you can check Hourly UV Index in Tomas.

Maximum UV Index Levels in Tomas for September

The chart shows the monthly maximum UV Index (UVI) for Tomas 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 Tomas typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec232121181513141517202021
Data source: Tomas 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 Tomas Compares to Other Months

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

This table compares monthly weather conditions in Tomas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)199 mm (7.8 inches)89%extreme
February Weather3°C (39°F)222 mm (8.7 inches)89%extreme
March Weather3°C (38°F)253 mm (10.0 inches)90%extreme
April Weather3°C (38°F)126 mm (5.0 inches)89%extreme
May Weather2°C (37°F)92 mm (3.6 inches)83%extreme
June Weather2°C (36°F)39 mm (1.5 inches)69%extreme
July Weather2°C (35°F)35 mm (1.4 inches)56%extreme
August Weather2°C (36°F)52 mm (2.0 inches)50%extreme
September Weather2°C (37°F)105 mm (4.1 inches)53%extreme
October Weather3°C (38°F)148 mm (5.8 inches)68%extreme
November Weather4°C (39°F)156 mm (6.1 inches)81%extreme
December Weather4°C (39°F)189 mm (7.5 inches)87%extreme

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