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September Weather in Porto da Folha, Brazil

Last updated: August 22, 2025

In September, the average temperature in Porto da Folha, Brazil hovers around 25°C (78°F). Expect a comfortable range where the minimum can dip to 18°C (65°F), while the maximum can soar to 37°C (99°F). With an average humidity of 79%, the weather feels quite warm and inviting. However, prepare for some sporadic showers, as 27 mm (1.1 in) of precipitation is expected over 11 days.

September Temperature in Porto da Folha

In September in Porto da Folha, the average temperature is 25°C (78°F). Maximum temperatures can reach 37°C (99°F), while the minimum can drop as low as 18°C (65°F). This makes it an ideal time for travelers seeking warm weather and a comfortable climate for outdoor activities.

September Weather in Porto da Folha: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Porto da Folha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Porto da Folha, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec838483817976747577818283
Data source: Temperature data for Porto da Folha 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 Porto da Folha

In Porto da Folha in September, the precipitation amount is 27 mm (1.1 in) spread over 11 days.

September Precipitation Trends in Porto da Folha

The chart displays monthly precipitation patterns in Porto da Folha, 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 Porto da Folha, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec182971475963563027142224
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Porto da Folha

In Porto da Folha in September humidity is 79%. With an average temperature of 25°C (78°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities less inviting and requiring frequent breaks to stay refreshed.

September Average Humidity in Porto da Folha

This chart illustrates the average monthly humidity levels in Porto da Folha, 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 Porto da Folha is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%82%84%86%86%83%81%80%79%77%76%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Porto da Folha

In Porto da Folha 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 Porto da Folha.

Maximum UV Index Levels in Porto da Folha for September

The chart shows the monthly maximum UV Index (UVI) for Porto da Folha 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 Porto da Folha typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141414141210101213141514
Data source: Porto da Folha 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 Porto da Folha Compares to Other Months

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

This table compares monthly weather conditions in Porto da Folha, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)18 mm (0.7 inches)81%extreme
February Weather29°C (84°F)29 mm (1.1 inches)82%extreme
March Weather28°C (83°F)71 mm (2.8 inches)84%extreme
April Weather27°C (82°F)46 mm (1.8 inches)86%extreme
May Weather26°C (79°F)59 mm (2.3 inches)86%extreme
June Weather25°C (76°F)63 mm (2.5 inches)83%very high
July Weather24°C (75°F)56 mm (2.2 inches)81%very high
August Weather24°C (75°F)30 mm (1.2 inches)80%extreme
September Weather25°C (78°F)27 mm (1.1 inches)79%extreme
October Weather27°C (81°F)14 mm (0.5 inches)77%extreme
November Weather28°C (83°F)22 mm (0.9 inches)76%extreme
December Weather28°C (83°F)24 mm (1.0 inches)76%extreme

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