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May Weather in Casa Branca, Brazil

Last updated: August 22, 2025

In Casa Branca, Brazil, the average temperature in May hovers around 20°C (68°F), making it a pleasant time to visit. However, be prepared for fluctuations, as temperatures can drop to a cool 4°C (40°F) at night or rise to a warm 31°C (88°F) during the day. Expect some rain with an average precipitation of 34 mm (1.3 in) spread over 5 days, and be mindful of the average humidity at 74%. Enjoy the dynamic climate while exploring all that Casa Branca has to offer!

May Temperature in Casa Branca

In May in Casa Branca, the average temperature is 20°C (68°F). Maximums can reach 31°C (88°F), and minimums can be as low as 4°C (40°F). This climate makes Casa Branca an ideal destination for travelers seeking a comfortable range of temperatures for outdoor activities.

May Weather in Casa Branca: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Casa Branca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casa Branca, May typically has an average temperature of 20°C (68°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec767576736867656875767576
Data source: Temperature data for Casa Branca 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 Casa Branca

In Casa Branca in May, the precipitation amount is 34 mm (1.3 in) over the course of 5 days.

May Precipitation Trends in Casa Branca

The chart displays monthly precipitation patterns in Casa Branca, 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 Casa Branca, May typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec1671401145634159222999139150
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Casa Branca

In Casa Branca in May humidity is 74%. With an average temperature of 20°C (68°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel exhausting, prompting travelers to seek shade and hydration more often.

May Average Humidity in Casa Branca

This chart illustrates the average monthly humidity levels in Casa Branca, 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 Casa Branca is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%87%80%74%72%67%58%49%36%65%72%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Casa Branca

In Casa Branca 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 Casa Branca.

Maximum UV Index Levels in Casa Branca for May

The chart shows the monthly maximum UV Index (UVI) for Casa Branca 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 Casa Branca typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118781012131416
Data source: Casa Branca 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 Casa Branca Compares to Other Months

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

This table compares monthly weather conditions in Casa Branca, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)167 mm (6.6 inches)85%extreme
February Weather24°C (76°F)140 mm (5.5 inches)87%extreme
March Weather24°C (76°F)114 mm (4.5 inches)87%extreme
April Weather23°C (73°F)56 mm (2.2 inches)80%extreme
May Weather20°C (68°F)34 mm (1.3 inches)74%very high
June Weather19°C (67°F)15 mm (0.6 inches)72%high
July Weather18°C (65°F)9 mm (0.4 inches)67%very high
August Weather20°C (69°F)22 mm (0.9 inches)58%very high
September Weather24°C (76°F)29 mm (1.1 inches)49%extreme
October Weather24°C (76°F)99 mm (3.9 inches)36%extreme
November Weather24°C (75°F)139 mm (5.5 inches)65%extreme
December Weather24°C (76°F)150 mm (5.9 inches)72%extreme

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