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May Weather in Santa Rosa, Brazil

Last updated: August 22, 2025

In May, the average temperature in Santa Rosa, Brazil is a pleasant 18°C (64°F). Expect a range, with minimums dipping to 5°C (41°F) and maximums soaring to 33°C (92°F). Be prepared for some rain, as the area experiences an average precipitation of 198 mm (7.8 in) over 11 days. The air tends to be quite humid, with an average humidity of 82%.

May Temperature in Santa Rosa

In May in Santa Rosa, the average temperature is 18°C (64°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 5°C (41°F). This makes Santa Rosa an ideal destination for travelers looking to enjoy mild weather with warm afternoons and cooler evenings.

May Weather in Santa Rosa: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Rosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Rosa, May typically has an average temperature of 18°C (64°F), with highs reaching up to 33°C (92°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec797775706461596368717578
Data source: Temperature data for Santa Rosa 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 Santa Rosa

In Santa Rosa in May, the precipitation amount is 198 mm (7.8 in) over a span of 11 days.

May Precipitation Trends in Santa Rosa

The chart displays monthly precipitation patterns in Santa Rosa, 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 Santa Rosa, May typically receives around 198 mm (7.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec148104115113198126987711617412483
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Rosa

In Santa Rosa in May humidity is 82%. With an average temperature of 18°C (64°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel stifling, leaving travelers drenched in sweat and longing for respite in the shade.

May Average Humidity in Santa Rosa

This chart illustrates the average monthly humidity levels in Santa Rosa, 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 Santa Rosa is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%74%72%78%82%78%73%59%62%65%76%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santa Rosa

In Santa Rosa in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Santa Rosa, you can refer to this Hourly UV Index in Santa Rosa.

Maximum UV Index Levels in Santa Rosa for May

The chart shows the monthly maximum UV Index (UVI) for Santa Rosa 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 Santa Rosa typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210656710131414
Data source: Santa Rosa 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 Santa Rosa Compares to Other Months

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

This table compares monthly weather conditions in Santa Rosa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)148 mm (5.8 inches)79%extreme
February Weather25°C (77°F)104 mm (4.1 inches)74%extreme
March Weather24°C (75°F)115 mm (4.5 inches)72%extreme
April Weather21°C (71°F)113 mm (4.5 inches)78%very high
May Weather18°C (64°F)198 mm (7.8 inches)82%high
June Weather16°C (61°F)126 mm (5.0 inches)78%moderate
July Weather15°C (60°F)98 mm (3.9 inches)73%high
August Weather17°C (63°F)77 mm (3.0 inches)58%high
September Weather20°C (69°F)116 mm (4.5 inches)62%very high
October Weather22°C (72°F)174 mm (6.9 inches)65%extreme
November Weather24°C (75°F)124 mm (4.9 inches)76%extreme
December Weather26°C (79°F)83 mm (3.3 inches)85%extreme

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