nomadseason

September Weather in Altinho, Brazil

Last updated: August 22, 2025

In September, the average temperature in Altinho, Brazil is a comfortable 22°C (72°F). Expect minimums of around 16°C (61°F) and highs reaching 31°C (89°F). While you're enjoying the warmth, be prepared for some rain, as there is an average of 42 mm (1.7 in) of precipitation over 17 days. The air is quite humid, with an average humidity level of 79%, making it feel even warmer.

September Temperature in Altinho

In September in Altinho, the average temperature is 22°C (72°F). Maximum temperatures can reach 31°C (89°F), while minimum temperatures can drop to as low as 16°C (61°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Altinho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altinho, September typically has an average temperature of 22°C (72°F), with highs reaching up to 31°C (89°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec767776757371697071747576
Data source: Temperature data for Altinho generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Altinho

In Altinho in September, the precipitation amount is 42 mm (1.7 in) over a span of 17 days.

September Precipitation Trends in Altinho

The chart displays monthly precipitation patterns in Altinho, 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 Altinho, September typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec446183819568664842262932
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Altinho

In Altinho in September humidity is 79%. With an average temperature of 22°C (72°F), this humidity feels like you are enveloped in a warm, heavy blanket, making it feel considerably hotter and adding a layer of stickiness to your skin as you navigate through the streets.

September Average Humidity in Altinho

This chart illustrates the average monthly humidity levels in Altinho, 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 Altinho is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%87%88%89%90%89%86%84%79%74%71%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Altinho

In Altinho 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 Altinho, you can check here.

Maximum UV Index Levels in Altinho for September

The chart shows the monthly maximum UV Index (UVI) for Altinho 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 Altinho typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151515141211111214141515
Data source: Altinho 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 Altinho Compares to Other Months

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

This table compares monthly weather conditions in Altinho, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)44 mm (1.7 inches)84%extreme
February Weather25°C (77°F)61 mm (2.4 inches)87%extreme
March Weather24°C (76°F)83 mm (3.3 inches)88%extreme
April Weather24°C (75°F)81 mm (3.2 inches)89%extreme
May Weather23°C (73°F)95 mm (3.7 inches)90%extreme
June Weather22°C (71°F)68 mm (2.7 inches)89%extreme
July Weather21°C (70°F)66 mm (2.6 inches)86%extreme
August Weather21°C (70°F)48 mm (1.9 inches)84%extreme
September Weather22°C (72°F)42 mm (1.7 inches)79%extreme
October Weather23°C (74°F)26 mm (1.0 inches)74%extreme
November Weather24°C (76°F)29 mm (1.1 inches)71%extreme
December Weather24°C (76°F)32 mm (1.3 inches)72%extreme

Compare Altinho's Climate with Cities Worldwide