nomadseason

September Weather in Mer Rouge, United States

Last updated: June 24, 2025

In September, the average temperature in Mer Rouge, United States is a warm 26°C (79°F), with a minimum dipping to 12°C (54°F) and a sizzling maximum reaching 38°C (101°F). Throughout the month, expect about 73 mm (2.9 in) of precipitation over 8 days, accompanied by an average humidity level of 73%. Whether you're planning outdoor activities or seeking cool spots, this weather is sure to shape your experience!

September Temperature in Mer Rouge

In September in Mer Rouge, the average temperature is 26°C (79°F). Maximums can reach 38°C (101°F) and minimums can be as low as 12°C (54°F). This makes Mer Rouge an ideal destination for travelers seeking warm weather and a variety of outdoor activities.

September Weather in Mer Rouge: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mer Rouge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mer Rouge, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec485261657480838279685552
Data source: Temperature data for Mer Rouge generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mer Rouge

In Mer Rouge in September, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

September Precipitation Trends in Mer Rouge

The chart displays monthly precipitation patterns in Mer Rouge, 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 Mer Rouge, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec129200155178130114102927314287116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Mer Rouge

In Mer Rouge in September, humidity is 73%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable as you navigate through the heat with a constant sheen of sweat on your skin.

September Average Humidity in Mer Rouge

This chart illustrates the average monthly humidity levels in Mer Rouge, 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 Mer Rouge is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mer Rouge

In Mer Rouge in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mer Rouge.

Maximum UV Index Levels in Mer Rouge for September

The chart shows the monthly maximum UV Index (UVI) for Mer Rouge 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 Mer Rouge typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47811111212119864
Data source: Mer Rouge 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 Mer Rouge Compares to Other Months

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

This table compares monthly weather conditions in Mer Rouge, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)129 mm (5.1 inches)84%moderate
February Weather11°C (52°F)200 mm (7.9 inches)83%high
March Weather16°C (61°F)155 mm (6.1 inches)80%very high
April Weather18°C (65°F)178 mm (7.0 inches)82%extreme
May Weather23°C (74°F)130 mm (5.1 inches)83%extreme
June Weather27°C (80°F)114 mm (4.5 inches)80%extreme
July Weather28°C (83°F)102 mm (4.0 inches)80%extreme
August Weather28°C (82°F)92 mm (3.6 inches)75%extreme
September Weather26°C (79°F)73 mm (2.9 inches)73%very high
October Weather20°C (68°F)142 mm (5.6 inches)76%very high
November Weather13°C (55°F)86 mm (3.4 inches)84%high
December Weather11°C (52°F)116 mm (4.6 inches)88%moderate

Compare Mer Rouge's Climate with Cities Worldwide