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May Weather in Caieiras, Brazil

Last updated: August 22, 2025

In Caieiras, Brazil, the average temperature in May hovers around 18°C (64°F), with minimums dipping to 3°C (39°F) and maximums reaching up to 29°C (85°F). Expect around 47 mm (1.9 in) of precipitation spread over 5 days, and enjoy the refreshing air with an average humidity of 79%.

May Temperature in Caieiras

In May in Caieiras, the average temperature is 18°C (64°F). The maximum can reach 29°C (85°F), and the minimum can be as low as 3°C (39°F). This mild climate makes Caieiras an ideal destination for travelers seeking comfortable weather and diverse activities.

May Weather in Caieiras: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Caieiras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caieiras, May typically has an average temperature of 18°C (64°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec737272686464616369706972
Data source: Temperature data for Caieiras 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.

May Precipitation in Caieiras

In Caieiras in May, the precipitation amount is 47 mm (1.9 in) spread over a duration of 5 days.

May Precipitation Trends in Caieiras

The chart displays monthly precipitation patterns in Caieiras, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Caieiras, May typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec204191147634843195544125142166
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Caieiras

In Caieiras in May, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.

May Average Humidity in Caieiras

This chart illustrates the average monthly humidity levels in Caieiras, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Caieiras is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%84%79%77%72%65%58%50%75%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Caieiras

In Caieiras in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Caieiras.

Maximum UV Index Levels in Caieiras for May

The chart shows the monthly maximum UV Index (UVI) for Caieiras in May, 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 May, the maximum UV index in Caieiras typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161311867911131416
Data source: Caieiras May 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 May Weather in Caieiras Compares to Other Months

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

This table compares monthly weather conditions in Caieiras, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)204 mm (8.0 inches)88%extreme
February Weather22°C (73°F)191 mm (7.5 inches)88%extreme
March Weather22°C (73°F)147 mm (5.8 inches)87%extreme
April Weather20°C (69°F)63 mm (2.5 inches)84%extreme
May Weather18°C (64°F)47 mm (1.9 inches)79%very high
June Weather18°C (64°F)43 mm (1.7 inches)77%high
July Weather16°C (62°F)19 mm (0.7 inches)72%high
August Weather17°C (63°F)55 mm (2.2 inches)65%very high
September Weather20°C (69°F)44 mm (1.7 inches)58%extreme
October Weather21°C (70°F)125 mm (4.9 inches)50%extreme
November Weather21°C (69°F)142 mm (5.6 inches)75%extreme
December Weather22°C (72°F)166 mm (6.5 inches)80%extreme

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