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May Weather in Osasco, Brazil

Last updated: August 22, 2025

In May, the average temperature in Osasco, Brazil hovers around 18°C (65°F). Daily temperatures can range from a chilly 5°C (42°F) to a warm 29°C (85°F). Expect 48 mm (1.9 in) of rain over approximately 6 days, with humidity levels at a comfortable 79%.

May Temperature in Osasco

In May in Osasco, the average temperature is 18°C (65°F). Maximums can reach 29°C (85°F), and minimums can be as low as 5°C (42°F). This makes Osasco an ideal destination for travelers seeking mild weather and pleasant outdoor activities.

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

The chart illustrates May temperature patterns in Osasco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osasco, May typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (85°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec747373696564626369706972
Data source: Temperature data for Osasco 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 Osasco

In Osasco in May, the precipitation amount is 48 mm (1.9 in) distributed over 6 days.

May Precipitation Trends in Osasco

The chart displays monthly precipitation patterns in Osasco, 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 Osasco, May typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec177158135554845255740118116143
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Osasco

In Osasco 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 Osasco

This chart illustrates the average monthly humidity levels in Osasco, 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 Osasco 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 Osasco

In Osasco 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 Osasco.

Maximum UV Index Levels in Osasco for May

The chart shows the monthly maximum UV Index (UVI) for Osasco 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 Osasco typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16151211867911131415
Data source: Osasco 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 Osasco Compares to Other Months

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

This table compares monthly weather conditions in Osasco, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)177 mm (7.0 inches)88%extreme
February Weather23°C (73°F)158 mm (6.2 inches)88%extreme
March Weather23°C (73°F)135 mm (5.3 inches)87%extreme
April Weather20°C (69°F)55 mm (2.2 inches)84%extreme
May Weather18°C (65°F)48 mm (1.9 inches)79%very high
June Weather18°C (64°F)45 mm (1.8 inches)77%high
July Weather17°C (62°F)25 mm (1.0 inches)72%high
August Weather17°C (63°F)57 mm (2.2 inches)65%very high
September Weather20°C (69°F)40 mm (1.6 inches)58%extreme
October Weather21°C (70°F)118 mm (4.6 inches)50%extreme
November Weather21°C (69°F)116 mm (4.6 inches)75%extreme
December Weather22°C (72°F)143 mm (5.6 inches)80%extreme

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