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May Weather in Viana, Brazil

Last updated: August 22, 2025

In May, the average temperature in Viana, Brazil hovers around 22°C (73°F). Expect a minimum of 13°C (56°F) and a comfortable maximum reaching 32°C (90°F). With an average humidity of 82%, you might feel the warmth more intensely. Be prepared for some rain, as 76 mm (3.0 in) of precipitation can be expected over about 12 days this month.

May Temperature in Viana

In May in Viana, the average temperature is 22°C (73°F). Maximum temperatures can reach 32°C (90°F), while the minimum can drop as low as 13°C (56°F). This makes it an ideal destination for travelers seeking a pleasant climate with comfortable warmth during the day and cooler evenings.

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

The chart illustrates May temperature patterns in Viana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Viana, May typically has an average temperature of 22°C (73°F), with highs reaching up to 32°C (90°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979767271696973747577
Data source: Temperature data for Viana 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 Viana

In Viana in May, the total precipitation amount is 76 mm (3.0 in), occurring over the course of 12 days.

May Precipitation Trends in Viana

The chart displays monthly precipitation patterns in Viana, 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 Viana, May typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec761761311217644315765123185188
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Viana

In Viana in May, humidity is 82%. With an average temperature of 22°C (73°F), this humidity feels like a warm, heavy embrace, making traveling feel sticky and draining, but the tropical atmosphere also brings a lush vibrancy to the surroundings.

May Average Humidity in Viana

This chart illustrates the average monthly humidity levels in Viana, 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 Viana is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%85%86%85%82%81%79%75%72%67%69%72%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Viana

In Viana 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 Viana.

Maximum UV Index Levels in Viana for May

The chart shows the monthly maximum UV Index (UVI) for Viana 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 Viana typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151413118781012131415
Data source: Viana 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 Viana Compares to Other Months

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

This table compares monthly weather conditions in Viana, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)76 mm (3.0 inches)80%extreme
February Weather26°C (79°F)176 mm (6.9 inches)85%extreme
March Weather26°C (79°F)131 mm (5.2 inches)86%extreme
April Weather24°C (76°F)120 mm (4.7 inches)85%extreme
May Weather22°C (73°F)76 mm (3.0 inches)82%very high
June Weather22°C (72°F)44 mm (1.7 inches)81%high
July Weather21°C (69°F)31 mm (1.2 inches)79%very high
August Weather21°C (70°F)57 mm (2.2 inches)75%very high
September Weather23°C (73°F)65 mm (2.6 inches)72%extreme
October Weather23°C (75°F)123 mm (4.8 inches)66%extreme
November Weather24°C (75°F)185 mm (7.3 inches)69%extreme
December Weather25°C (77°F)188 mm (7.4 inches)72%extreme

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