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September Weather in Masma, Peru

Last updated: August 27, 2025

In Masma, Peru, the average temperature in September hovers around 5°C (42°F). You can expect chilly days with minimums dipping to -3°C (26°F) and a pleasant maximum reaching 14°C (57°F). Be prepared for some rain, as 97 mm (3.8 in) of precipitation falls over 25 days. With an average humidity of 40%, it’s a month that captures the brisk essence of the season.

September Temperature in Masma

In September in Masma, the average temperature is 5°C (42°F). Maximums can reach 14°C (57°F), while minimums can drop to as low as -3°C (26°F). Travelers should be prepared for chilly conditions, with the possibility of varying temperatures throughout the month.

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

The chart illustrates September temperature patterns in Masma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Masma, September typically has an average temperature of 5°C (42°F), with highs reaching up to 14°C (57°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec444544434241404142434545
Data source: Temperature data for Masma 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 Masma

In Masma in September, the precipitation amount is 97 mm (3.8 in) spread over a duration of 25 days.

September Precipitation Trends in Masma

The chart displays monthly precipitation patterns in Masma, 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 Masma, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec2032402561268940335097142169201
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Masma

In Masma in September, humidity is 40%. With an average temperature of 5°C (42°F), this humidity feels refreshing, offering a brisk atmosphere that is invigorating for outdoor adventures, making it a perfect time for exploring the sights while wearing a light jacket.

September Average Humidity in Masma

This chart illustrates the average monthly humidity levels in Masma, 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 Masma is approximately 40%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Masma

In Masma 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 Masma, you can check Hourly UV Index in Masma.

Maximum UV Index Levels in Masma for September

The chart shows the monthly maximum UV Index (UVI) for Masma 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 Masma typically reaches 17, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec191919181512131517181818
Data source: Masma 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 Masma Compares to Other Months

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

This table compares monthly weather conditions in Masma, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)203 mm (8.0 inches)91%extreme
February Weather7°C (45°F)240 mm (9.4 inches)90%extreme
March Weather7°C (44°F)255 mm (10.1 inches)91%extreme
April Weather6°C (44°F)126 mm (5.0 inches)89%extreme
May Weather6°C (43°F)89 mm (3.5 inches)85%extreme
June Weather5°C (41°F)40 mm (1.6 inches)65%extreme
July Weather4°C (40°F)33 mm (1.3 inches)47%extreme
August Weather5°C (41°F)50 mm (2.0 inches)38%extreme
September Weather5°C (42°F)97 mm (3.8 inches)40%extreme
October Weather6°C (44°F)142 mm (5.6 inches)56%extreme
November Weather7°C (45°F)169 mm (6.6 inches)76%extreme
December Weather7°C (45°F)201 mm (7.9 inches)90%extreme

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