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May Weather in Boa Vista, Brazil

Last updated: August 22, 2025

In May, the average temperature in Boa Vista, Brazil hovers around 27°C (80°F). Expect comfortable evenings with a minimum of 22°C (72°F), while daytime highs can reach up to 36°C (97°F). However, be prepared for wet conditions, as 384 mm (15.1 in) of precipitation typically falls over 28 days, accompanied by an average humidity of 60%.

May Temperature in Boa Vista

In May in Boa Vista, the average temperature is 27°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 22°C (72°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather and outdoor adventures.

May Weather in Boa Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Boa Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boa Vista, May typically has an average temperature of 27°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec828384838079798182848382
Data source: Temperature data for Boa Vista 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 Boa Vista

In Boa Vista in May, the precipitation amount is 384 mm (15.1 in) during a period of 28 days.

May Precipitation Trends in Boa Vista

The chart displays monthly precipitation patterns in Boa Vista, 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 Boa Vista, May typically receives around 384 mm (15.1 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec5233701643843603041831197113575
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Boa Vista

In Boa Vista in May, humidity is 60%. With an average temperature of 27°C (80°F), this humidity feels like a warm embrace, making travel slightly sticky yet invigorating, as it heightens the sense of adventure and helps you appreciate the vibrant surroundings even more.

May Average Humidity in Boa Vista

This chart illustrates the average monthly humidity levels in Boa Vista, 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 Boa Vista is approximately 60%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec44%40%38%39%60%89%84%77%60%40%44%49%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Boa Vista

In Boa Vista in May, 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 Boa Vista, you can check here.

Maximum UV Index Levels in Boa Vista for May

The chart shows the monthly maximum UV Index (UVI) for Boa Vista 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 Boa Vista typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516161413121313131313
Data source: Boa Vista 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 Boa Vista Compares to Other Months

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

This table compares monthly weather conditions in Boa Vista, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)52 mm (2.1 inches)44%extreme
February Weather29°C (84°F)33 mm (1.3 inches)40%extreme
March Weather29°C (84°F)70 mm (2.7 inches)38%extreme
April Weather28°C (83°F)164 mm (6.5 inches)39%extreme
May Weather27°C (80°F)384 mm (15.1 inches)60%extreme
June Weather26°C (80°F)360 mm (14.2 inches)89%extreme
July Weather26°C (79°F)304 mm (12.0 inches)84%extreme
August Weather27°C (81°F)183 mm (7.2 inches)77%extreme
September Weather28°C (83°F)119 mm (4.7 inches)60%extreme
October Weather29°C (84°F)71 mm (2.8 inches)40%extreme
November Weather29°C (84°F)135 mm (5.3 inches)44%extreme
December Weather28°C (83°F)75 mm (3.0 inches)49%extreme

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