September Weather in Gandu, Brazil

Last updated: August 22, 2025

In Gandu, Brazil, the average temperature in September hovers around 22°C (71°F). Expect temperatures to range from a cool 14°C (57°F) to a warm 31°C (89°F). Be prepared for some rainfall, as 72 mm (2.8 in) of precipitation is expected over 19 days. With an average humidity of 75%, it’s sure to feel quite tropical!

September Temperature in Gandu

In September in Gandu, the average temperature is 22°C (71°F), with maximums reaching up to 31°C (89°F) and minimums dropping as low as 14°C (57°F). This pleasant climate makes Gandu an ideal destination for travelers seeking enjoyable outdoor experiences.

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

The chart illustrates September temperature patterns in Gandu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gandu, September typically has an average temperature of 22°C (71°F), with highs reaching up to 31°C (89°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec767776757371696971747576
Data source: Temperature data for Gandu 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 Gandu

In Gandu in September, the precipitation amount is 72 mm (2.8 in) over the course of 19 days.

September Precipitation Trends in Gandu

The chart displays monthly precipitation patterns in Gandu, 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 Gandu, September typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec6179115117978083867282151130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gandu

In Gandu in September, humidity is 75%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making traveling a bit sticky but also invigorating, as the air surrounds you with a heavy yet refreshing sensation that highlights the vibrant atmosphere of your surroundings.

September Average Humidity in Gandu

This chart illustrates the average monthly humidity levels in Gandu, 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 Gandu is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%81%86%87%86%84%80%77%75%72%71%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gandu

In Gandu 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 Gandu.

Maximum UV Index Levels in Gandu for September

The chart shows the monthly maximum UV Index (UVI) for Gandu 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 Gandu typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151413119101213151515
Data source: Gandu 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 Gandu Compares to Other Months

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

This table compares monthly weather conditions in Gandu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (76°F)61 mm (2.4 inches)76%extreme
February Weather25°C (77°F)79 mm (3.1 inches)81%extreme
March Weather25°C (77°F)115 mm (4.5 inches)86%extreme
April Weather24°C (75°F)117 mm (4.6 inches)87%extreme
May Weather23°C (73°F)97 mm (3.8 inches)86%extreme
June Weather22°C (71°F)80 mm (3.1 inches)84%very high
July Weather21°C (69°F)83 mm (3.3 inches)80%very high
August Weather21°C (70°F)86 mm (3.4 inches)77%extreme
September Weather22°C (71°F)72 mm (2.8 inches)75%extreme
October Weather23°C (74°F)82 mm (3.2 inches)72%extreme
November Weather24°C (75°F)151 mm (6.0 inches)71%extreme
December Weather24°C (76°F)130 mm (5.1 inches)70%extreme

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