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September Weather in Sao Borja, Brazil

Last updated: August 22, 2025

In Sao Borja, Brazil, the average temperature in September hovers around 19°C (67°F), with a comfortable range from a brisk 6°C (43°F) to a warm 35°C (95°F). Expect about 128 mm (5.0 in) of precipitation spread over 10 days, contributing to an average humidity level of 59%. Embrace the variety this month offers!

September Temperature in Sao Borja

In September in Sao Borja, the average temperature is 19°C (67°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as 6°C (43°F). This diverse temperature range makes it advisable to pack for both warm and cooler conditions to fully enjoy your travels.

September Weather in Sao Borja: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sao Borja, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Borja, September typically has an average temperature of 19°C (67°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec807975716461596267717578
Data source: Temperature data for Sao Borja 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 Sao Borja

In Sao Borja in September, the total precipitation amount is 128 mm (5.0 in) recorded over a span of 10 days.

September Precipitation Trends in Sao Borja

The chart displays monthly precipitation patterns in Sao Borja, 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 Sao Borja, September typically receives around 128 mm (5.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec16663161132170101727712814312882
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sao Borja

In Sao Borja in September humidity is 59%. With an average temperature of 19°C (67°F), this humidity feels like a gentle embrace that can be refreshing during sightseeing but may feel a bit sticky if you're on the move for extended periods.

September Average Humidity in Sao Borja

This chart illustrates the average monthly humidity levels in Sao Borja, 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 Sao Borja is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%73%81%83%77%69%51%59%63%66%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sao Borja

In Sao Borja 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 Sao Borja.

Maximum UV Index Levels in Sao Borja for September

The chart shows the monthly maximum UV Index (UVI) for Sao Borja 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 Sao Borja typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412965579131414
Data source: Sao Borja 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 Sao Borja Compares to Other Months

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

This table compares monthly weather conditions in Sao Borja, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)166 mm (6.5 inches)70%extreme
February Weather26°C (79°F)63 mm (2.5 inches)66%extreme
March Weather24°C (76°F)160 mm (6.3 inches)73%extreme
April Weather21°C (71°F)132 mm (5.2 inches)81%very high
May Weather18°C (64°F)170 mm (6.7 inches)82%high
June Weather16°C (61°F)101 mm (4.0 inches)77%moderate
July Weather15°C (59°F)72 mm (2.8 inches)69%moderate
August Weather17°C (62°F)76 mm (3.0 inches)51%high
September Weather19°C (67°F)128 mm (5.0 inches)59%very high
October Weather22°C (71°F)143 mm (5.6 inches)63%extreme
November Weather24°C (75°F)128 mm (5.0 inches)66%extreme
December Weather26°C (79°F)82 mm (3.2 inches)81%extreme

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