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September Weather in Caico, Brazil

Last updated: August 22, 2025

In Caico, Brazil, the average temperature in September is a warm 28°C (83°F). Expect a minimum of 20°C (68°F) and a maximum that can reach up to 38°C (100°F). With just 1 mm (0.0 in) of precipitation across 0 days, you can enjoy plenty of dry, sunny weather. The average humidity sits at a comfortable 72%, making it an inviting time of year!

September Temperature in Caico

In September in Caico, the average temperature is 28°C (83°F). Maximums can reach 38°C (100°F), while minimums can drop to as low as 20°C (68°F). This makes Caico an ideal destination for travelers seeking warm weather and sunny adventures.

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

The chart illustrates September temperature patterns in Caico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caico, September typically has an average temperature of 28°C (83°F), with highs reaching up to 38°C (100°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec858483828281808183858686
Data source: Temperature data for Caico 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 Caico

In Caico in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

September Precipitation Trends in Caico

The chart displays monthly precipitation patterns in Caico, 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 Caico, September typically receives around 1 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec471081337740111811118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caico

In Caico in September, humidity is 72%. With an average temperature of 28°C (83°F), this humidity feels like you're walking through a warm, damp blanket, making travel particularly stifling and sticky, where even short excursions can leave you feeling overheated and in need of frequent breaks for hydration.

September Average Humidity in Caico

This chart illustrates the average monthly humidity levels in Caico, 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 Caico is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caico

In Caico 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 Caico.

Maximum UV Index Levels in Caico for September

The chart shows the monthly maximum UV Index (UVI) for Caico 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 Caico typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141211111213131414
Data source: Caico 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 Caico Compares to Other Months

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

This table compares monthly weather conditions in Caico, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather29°C (85°F)47 mm (1.9 inches)86%extreme
February Weather29°C (84°F)108 mm (4.2 inches)89%extreme
March Weather28°C (83°F)133 mm (5.2 inches)89%extreme
April Weather28°C (82°F)77 mm (3.0 inches)89%extreme
May Weather28°C (82°F)40 mm (1.6 inches)90%extreme
June Weather27°C (81°F)11 mm (0.4 inches)86%extreme
July Weather27°C (80°F)18 mm (0.7 inches)80%extreme
August Weather27°C (81°F)1 mm (0.0 inches)77%extreme
September Weather28°C (83°F)1 mm (0.0 inches)72%extreme
October Weather29°C (85°F)1 mm (0.0 inches)68%extreme
November Weather30°C (86°F)1 mm (0.0 inches)66%extreme
December Weather30°C (86°F)8 mm (0.3 inches)70%extreme

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