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September Weather in Saint-Georges, French Guiana

Last updated: August 23, 2025

The average temperature in Saint-Georges, French Guiana during September is a warm 28°C (82°F). Expect minimum temperatures around 22°C (73°F) and highs reaching up to 34°C (94°F). With an average precipitation amount of 49 mm (1.9 in) spread over 9 days, it's advisable to carry an umbrella. The climate is characterized by an average humidity of 71%, adding to the tropical feel of the month.

September Temperature in Saint-Georges

In September in Saint-Georges, the average temperature is 28°C (82°F), with maximums reaching 34°C (94°F) and minimums dropping to 22°C (73°F). Travelers can expect warm and pleasant weather, ideal for outdoor activities and exploration.

September Weather in Saint-Georges: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Georges, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Georges, September typically has an average temperature of 28°C (82°F), with highs reaching up to 34°C (94°F) and lows dropping to around 22°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec787879797879798082828078
Data source: Temperature data for Saint-Georges 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 Saint-Georges

In Saint-Georges in September, the total precipitation amount is 49 mm (1.9 in) spread over 9 days.

September Precipitation Trends in Saint-Georges

The chart displays monthly precipitation patterns in Saint-Georges, 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 Saint-Georges, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2492242083674833382341214947174314
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Georges

In Saint-Georges in September humidity is 71%. With an average temperature of 28°C (82°F), this humidity feels like a warm embrace that can make your travels feel heavy and sticky, as the air clings to you and makes every step a bit more laborious.

September Average Humidity in Saint-Georges

This chart illustrates the average monthly humidity levels in Saint-Georges, 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 Saint-Georges is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%70%72%76%88%77%72%71%71%76%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Georges

In Saint-Georges in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Saint-Georges.

Maximum UV Index Levels in Saint-Georges for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Georges 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 Saint-Georges typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416161412121313131312
Data source: Saint-Georges 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 Saint-Georges Compares to Other Months

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

This table compares monthly weather conditions in Saint-Georges, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)249 mm (9.8 inches)78%extreme
February Weather26°C (78°F)224 mm (8.8 inches)71%extreme
March Weather26°C (79°F)208 mm (8.2 inches)70%extreme
April Weather26°C (79°F)367 mm (14.4 inches)72%extreme
May Weather26°C (79°F)483 mm (19.0 inches)76%extreme
June Weather26°C (79°F)338 mm (13.3 inches)88%extreme
July Weather26°C (79°F)234 mm (9.2 inches)77%extreme
August Weather27°C (81°F)121 mm (4.8 inches)72%extreme
September Weather28°C (82°F)49 mm (1.9 inches)71%extreme
October Weather28°C (82°F)47 mm (1.9 inches)71%extreme
November Weather27°C (81°F)174 mm (6.8 inches)76%extreme
December Weather26°C (79°F)314 mm (12.4 inches)86%extreme

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