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September Weather in Rio Mayo, Argentina

Last updated: August 22, 2025

In September, the average temperature in Rio Mayo, Argentina hovers around 8°C (46°F). Expect a range from a brisk -5°C (23°F) to a much warmer 23°C (74°F). During this time, precipitation measures about 14 mm (0.6 in) over 4 days, and the air tends to be quite humid, with an average humidity of 85%.

September Temperature in Rio Mayo

In September in Rio Mayo, the average temperature is 8°C (46°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as -5°C (23°F). This diverse temperature range makes it essential for travelers to pack layers to stay comfortable throughout the day.

September Weather in Rio Mayo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rio Mayo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Mayo, September typically has an average temperature of 8°C (46°F), with highs reaching up to 23°C (74°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec626458514438384246515762
Data source: Temperature data for Rio Mayo 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 Rio Mayo

In Rio Mayo in September, the total precipitation amount is 14 mm (0.6 in) spread over a duration of 4 days.

September Precipitation Trends in Rio Mayo

The chart displays monthly precipitation patterns in Rio Mayo, 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 Rio Mayo, September typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec11102837263627201416148
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rio Mayo

In Rio Mayo in September humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

September Average Humidity in Rio Mayo

This chart illustrates the average monthly humidity levels in Rio Mayo, 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 Rio Mayo is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%77%75%84%89%91%90%90%85%80%73%74%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rio Mayo

In Rio Mayo in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Rio Mayo, you can refer to this Hourly UV Index in Rio Mayo.

Maximum UV Index Levels in Rio Mayo for September

The chart shows the monthly maximum UV Index (UVI) for Rio Mayo 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 Rio Mayo typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1311853224681113
Data source: Rio Mayo 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 Rio Mayo Compares to Other Months

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

This table compares monthly weather conditions in Rio Mayo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (62°F)11 mm (0.4 inches)70%extreme
February Weather18°C (64°F)10 mm (0.4 inches)77%extreme
March Weather14°C (58°F)28 mm (1.1 inches)75%very high
April Weather11°C (51°F)37 mm (1.4 inches)84%moderate
May Weather7°C (44°F)26 mm (1.0 inches)89%moderate
June Weather3°C (38°F)36 mm (1.4 inches)90%low
July Weather3°C (38°F)27 mm (1.1 inches)90%low
August Weather6°C (42°F)20 mm (0.8 inches)90%moderate
September Weather8°C (46°F)14 mm (0.6 inches)85%high
October Weather10°C (51°F)16 mm (0.6 inches)80%very high
November Weather14°C (58°F)14 mm (0.5 inches)73%extreme
December Weather17°C (62°F)8 mm (0.3 inches)74%extreme

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