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May Weather in Sao Joao da Boa Vista, Brazil

Last updated: August 22, 2025

In May, the average temperature in Sao Joao da Boa Vista, Brazil is a pleasant 18°C (65°F). While you may experience cooler moments with a minimum of 2°C (36°F), the warmest days can reach up to 29°C (84°F). Expect an average precipitation of 46 mm (1.8 in) spread across about 6 days, and prepare for a relatively high humidity level of 79%. Enjoy the balanced climate!

May Temperature in Sao Joao da Boa Vista

In May in Sao Joao da Boa Vista, the average temperature is 18°C (65°F). The maximum can reach 29°C (84°F), while the minimum can be as low as 2°C (36°F). It's a great time to visit for those who enjoy mild weather with a hint of warmth.

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

The chart illustrates May temperature patterns in Sao Joao da 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 Sao Joao da Boa Vista, May typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec747373706564636673737273
Data source: Temperature data for Sao Joao da 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 Sao Joao da Boa Vista

In Sao Joao da Boa Vista in May, the precipitation amount is 46 mm (1.8 in) over a span of 6 days.

May Precipitation Trends in Sao Joao da Boa Vista

The chart displays monthly precipitation patterns in Sao Joao da 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 Sao Joao da Boa Vista, May typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec214186146604617103139130159192
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sao Joao da Boa Vista

In Sao Joao da Boa Vista in May, humidity is 79%. With an average temperature of 18°C (65°F), this humidity feels like walking through a warm mist, making traveling slightly uncomfortable and sticky, but offering a refreshing escape when you find moments of shade or a breeze.

May Average Humidity in Sao Joao da Boa Vista

This chart illustrates the average monthly humidity levels in Sao Joao da 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 Sao Joao da Boa Vista 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 Sao Joao da Boa Vista

In Sao Joao da Boa Vista 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 Sao Joao da Boa Vista.

Maximum UV Index Levels in Sao Joao da Boa Vista for May

The chart shows the monthly maximum UV Index (UVI) for Sao Joao da 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 Sao Joao da Boa Vista typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161613118781012141516
Data source: Sao Joao da 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 Sao Joao da Boa Vista Compares to Other Months

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

This table compares monthly weather conditions in Sao Joao da Boa Vista, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)214 mm (8.4 inches)88%extreme
February Weather23°C (74°F)186 mm (7.3 inches)88%extreme
March Weather23°C (74°F)146 mm (5.7 inches)87%extreme
April Weather21°C (70°F)59 mm (2.3 inches)84%extreme
May Weather18°C (65°F)46 mm (1.8 inches)79%very high
June Weather18°C (65°F)17 mm (0.7 inches)77%high
July Weather17°C (63°F)10 mm (0.4 inches)72%very high
August Weather19°C (66°F)31 mm (1.2 inches)65%very high
September Weather23°C (73°F)39 mm (1.5 inches)58%extreme
October Weather23°C (74°F)130 mm (5.1 inches)50%extreme
November Weather22°C (73°F)159 mm (6.3 inches)75%extreme
December Weather23°C (74°F)192 mm (7.6 inches)80%extreme

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