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September Weather in Mandiana, Guinea

Last updated: August 23, 2025

In September, the average temperature in Mandiana, Guinea is a pleasant 25°C (78°F). However, you can expect a range from a minimum of 20°C (69°F) to a maximum of 34°C (93°F). Be prepared for considerable rainfall, as the area receives about 255 mm (10.0 in) of precipitation over 25 days, with humidity levels soaring at an average of 88%.

September Temperature in Mandiana

In September in Mandiana, the average temperature is 25°C (78°F). Maximums can reach 34°C (93°F), while minimums can drop to as low as 20°C (69°F). This pleasant weather makes it an ideal time for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Mandiana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mandiana, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec788286888581787778798078
Data source: Temperature data for Mandiana 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 Mandiana

In Mandiana in September, the total precipitation amount is 255 mm (10.0 in) spread over 25 days.

September Precipitation Trends in Mandiana

The chart displays monthly precipitation patterns in Mandiana, 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 Mandiana, September typically receives around 255 mm (10.0 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec06114087147228270255151110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mandiana

In Mandiana in September, humidity is 88%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities a sweat-drenched challenge and prompting frequent breaks in the shade to cool off.

September Average Humidity in Mandiana

This chart illustrates the average monthly humidity levels in Mandiana, 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 Mandiana is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec20%28%34%56%67%86%87%90%88%87%66%34%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mandiana

In Mandiana in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Mandiana, you can check here.

Maximum UV Index Levels in Mandiana for September

The chart shows the monthly maximum UV Index (UVI) for Mandiana 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 Mandiana typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111112131313131414121010
Data source: Mandiana 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 Mandiana Compares to Other Months

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

This table compares monthly weather conditions in Mandiana, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)0 mm (0.0 inches)20%extreme
February Weather28°C (83°F)5 mm (0.2 inches)28%extreme
March Weather30°C (87°F)11 mm (0.4 inches)34%extreme
April Weather31°C (88°F)40 mm (1.6 inches)56%extreme
May Weather29°C (85°F)87 mm (3.4 inches)67%extreme
June Weather27°C (81°F)147 mm (5.8 inches)86%extreme
July Weather26°C (78°F)228 mm (9.0 inches)87%extreme
August Weather25°C (77°F)270 mm (10.6 inches)90%extreme
September Weather25°C (78°F)255 mm (10.0 inches)88%extreme
October Weather26°C (79°F)151 mm (5.9 inches)87%extreme
November Weather27°C (80°F)11 mm (0.4 inches)66%very high
December Weather26°C (79°F)0 mm (0.0 inches)34%very high

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