May Weather in Sao Joao del Rei, Brazil

Last updated: August 21, 2025

In May, São João del Rei experiences a delightful blend of warm and cool weather, making it an ideal time for outdoor activities. The maximum temperature reaches a pleasant 28°C (83°F), while the average hovers around a comfortable 18°C (65°F), providing a welcoming respite from the heat. Nighttime temperatures can dip to a chilly 5°C (42°F), so packing layers is advisable. During this month, the region sees an average precipitation of 25 mm (1.0 in) across 4 days, contributing to the lush greenery that characterizes the area. With humidity levels at 82%, visitors may feel a slight stickiness in the air, creating the perfect atmosphere for enjoying the rich cultural heritage and stunning landscapes of this charming Brazilian town.

May Temperature in Sao Joao del Rei

In May, São João del Rei experiences a notable shift in temperatures as the city gradually transitions into the cooler months. The average temperature dips to 18°C (65°F), down from April's milder 20°C (69°F), while the mercury reaches a maximum of 28°C (83°F)—a pleasant reprieve from the sweltering summer heat. Nights can be quite brisk, with lows dropping to 5°C (42°F), making warm layers essential for evening outings. This cooler trend is echoed in the overall transition from the warmer months as the region moves toward winter, offering visitors the ideal opportunity to explore its charming streets amidst crisp and refreshing air.

May Weather in Sao Joao del Rei: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sao Joao del Rei, 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 del Rei, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec737272686464616369706971
Data source: Temperature data for Sao Joao del Rei 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 del Rei

In May, Sao Joao del Rei, Brazil, experiences a significant shift in precipitation patterns, marking the transition to its drier season. With an average of just 25 mm (1.0 in) of rainfall over roughly 4 days, May stands out for its relatively low precipitation, particularly when compared to the wetter months of earlier in the year, such as February and November, which see averages exceeding 160 mm. This decline in both the amount and frequency of rain signals the onset of drier months ahead, as the rainy season begins to recede. As the landscape settles into a drier rhythm, it prepares for the upcoming winter months, where June and July bring even less precipitation.

May Precipitation Trends in Sao Joao del Rei

The chart displays monthly precipitation patterns in Sao Joao del Rei, 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 del Rei, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec12216310242251252137109169211
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sao Joao del Rei

In May, São João del-Rei experiences a humidity level of 82%, slightly lower than the preceding months, which have seen values consistently in the mid to high 80s. This trend marks a shift towards drier conditions as the region approaches the winter months. The humidity typically peaks during the summer months of January through April, hovering around the 83-87% range, while May's level signals the beginning of a gradual decrease that continues through June and July. As the year progresses, humidity levels in São João del-Rei drop significantly, suggesting a notable transition to a more comfortable, albeit drier, climate in the latter half of the year.

May Average Humidity in Sao Joao del Rei

This chart illustrates the average monthly humidity levels in Sao Joao del Rei, 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 del Rei is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%85%88%86%82%82%77%72%63%48%61%68%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Sao Joao del Rei

In May, Sao Joao del Rei experiences a noticeable shift in its UV Index, dropping to 9, categorized as very high. This change signifies a respite from the extreme values seen earlier in the year, where indices peaked at 17 in January and hovered around 16 to 14 in the preceding months. The slightly lower index means that while still potent, sun exposure becomes more manageable, allowing for a burn time of 15 minutes. As the season progresses into June, the UV Index continues to decline to 7, marking a transition to a high exposure category. This downward trend highlights a crucial window for outdoor activities—just remember to prioritize sun protection! For ongoing UV trends and safety tips, be sure to check Sao Joao del Rei UV Index.

Maximum UV Index Levels in Sao Joao del Rei for May

The chart shows the monthly maximum UV Index (UVI) for Sao Joao del Rei 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 del Rei typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171614129781012141416
Data source: Sao Joao del Rei 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.

May Sunshine in Sao Joao del Rei

May in São João del Rei, Brazil, bathes the town in 288 hours of sunshine, making it one of the year's sunniest months. This delightful stretch of sunlight follows the vibrant month of March, which boasts the highest hours at 313, and sets the stage for the equally bright July. Interestingly, just a few hours shorter than the preceding month, May's sunshine perfectly captures the transition into Brazil's cooler season, where the warmth remains prominent. As the year progresses, residents and visitors alike can relish in a consistent pattern of abundant sunshine, with May serving as a delightful bridge between the lush green of April and the invigorating vibes of winter, fostering a unique charm in this historic town.

Monthly Sunshine Duration in Sao Joao del Rei: May Highlighted

The May sunshine duration represents the total number of hours Sao Joao del Rei experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec262h264h313h291h288h283h308h295h310h281h269h290h
Data source: Sao Joao del Rei May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sao Joao del Rei During May

As May arrives in São João del Rei, the likelihood of sunny weather begins to shift, boasting a 44% chance of sunshine. This marks a notable dip from the previous month, April, which enjoys a more generous 57% probability of clear skies. However, May still benefits from a favorable outlook compared to the winter months ahead, with June and July showcasing even more sunlight at 57% and an impressive 80%, respectively. Overall, while May doesn’t quite match the peak of sunshine seen later in the year, it maintains a solid percentage that promises delightful, mild weather for outdoor activities and exploration in this charming Brazilian town.

Percentage of Sunny Days in May in Sao Joao del Rei

The chart illustrates the percentage of sunny days in Sao Joao del Rei throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Sao Joao del Rei experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%24%39%57%44%57%80%60%55%15%26%28%
Data source: Sao Joao del Rei May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sao Joao del Rei in May

In Sao João del Rei, Brazil, the daylight duration showcases an interesting seasonal rhythm. Starting the year with 13 hours of daylight in January, the days gradually shorten through the early months, dropping to 11 hours by April and May. This decline paves the way for the winter months of June and July, when daylight reaches its lowest at 10 hours. As spring approaches in August and September, daylight begins to rebound, returning to 11 hours, before climbing back to 12 hours in October, and peaking once again at 13 hours in November and December. This cyclical pattern emphasizes the region's vibrant seasonal changes, inviting both locals and visitors to embrace the varying lengths of day throughout the year.

Average Daylight Hours in Sao Joao del Rei for May

The chart illustrates the variation in daylight duration in Sao Joao del Rei throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 14m12h 46m12h 10m11h 34m11h 5m10h 51m10h 58m11h 24m11h 58m12h 34m13h 6m13h 22m
Data source: Sao Joao del Rei daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Sao Joao del Rei

In May, Sao Joao del Rei experiences a gentle average wind speed of 2.4 m/s (5 mph), creating a calm yet refreshing atmosphere as the region transitions into the cooler months. This slight increase from April's 2.5 m/s indicates a subtle upward trend in wind speed as the year progresses, which continues into the following months. As winter approaches, the winds gradually pick up, peaking in August and October, with speeds reaching up to 3.3 m/s (7 mph). The consistent yet moderate breezes throughout the earlier months of the year ensure that May remains a pleasant time to enjoy the vibrant landscapes and historical charm of the area.

Average May Wind Speed in Sao Joao del Rei

The chart displays monthly wind speed patterns in Sao Joao del Rei, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.22.12.52.4 m/s2.22.52.93.03.33.02.7
Data source: Sao Joao del Rei May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Sao Joao del Rei Compares to Other Months

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

May and January present notably different weather patterns. In May, temperatures range from a cooler minimum of 5°C (42°F) to a comfortable average of 18°C (65°F), peaking at 28°C (83°F). This month experiences relatively low precipitation of 25 mm (1.0 in) over just 4 days, with humidity at 82%. In contrast, January boasts warmer temperatures, with a minimum of 16°C (62°F) and a higher average of 23°C (73°F), reaching a maximum of 31°C (89°F). However, it also sees significantly more rainfall, totaling 122 mm (4.8 in) spread across 14 days, while maintaining a similar humidity level of 83%. For more detailed insights, you can refer to Sao Joao del Rei weather in January.

When comparing the weather in May and February, notable differences emerge between the two months. In May, temperatures range from a minimum of 5°C (42°F) to a comfortable average of 18°C (65°F), peaking at 28°C (83°F). The month experiences relatively low precipitation at 25 mm (1.0 in) over approximately 4 days, alongside a humidity level of 82%. In contrast, February boasts a much warmer climate with a minimum temperature of 15°C (59°F) and an average of 22°C (72°F), reaching highs of 33°C (91°F). However, it also brings significantly higher precipitation, measuring 163 mm (6.4 in) across 17 days and slightly increased humidity at 85%. Such contrasts highlight the variability in weather conditions across these two months. For more detailed insights, you can check out Sao Joao del Rei weather in February.

In comparing the weather of May and March, we can observe some notable differences. May features a milder temperature range with minimums around 5°C (42°F) and averages of 18°C (65°F), peaking at 28°C (83°F), while March showcases a warmer climate with minimums of 12°C (55°F) and averages of 22°C (72°F), reaching up to 31°C (88°F). Precipitation patterns also differ significantly; May experiences only 25 mm (1.0 in) of rain over about 4 days, whereas March sees a much wetter environment with 102 mm (4.0 in) spread across 15 days. Additionally, humidity levels in March are slightly higher at 87% compared to May's 82%. For more detailed insights into this month, check out Sao Joao del Rei weather in March.

April typically experiences warmer temperatures than May, with minimums around 10°C (50°F) and maximums reaching 30°C (86°F), compared to May's minimum of 5°C (42°F) and maximum of 28°C (83°F). Humidity levels are slightly higher in April at 86%, while May sees a more comfortable 82%. Additionally, April has more precipitation, averaging 42 mm (1.7 in) over 7 days, compared to May's 25 mm (1.0 in) over just 4 days. For more details on April's weather patterns, visit Sao Joao del Rei weather in April.

In May, the weather is characterized by a broader temperature range, with minimums dipping to 5°C (42°F) and maximums reaching up to 28°C (83°F), and an average temperature of 18°C (65°F). In contrast, June offers slightly warmer minimum temperatures at 8°C (47°F) but maintains a comparable average temperature of 18°C (64°F) and a maximum of 27°C (81°F). Precipitation levels also differ, with May experiencing 25 mm (1.0 in) over 4 days, while June sees a more moderate 12 mm (0.5 in) of rain over just 2 days. Interestingly, both months share a consistent humidity level of 82%. For more specific details, you can check Sao Joao del Rei weather in June.

In comparing the weather between May and July, we notice notable differences in temperature and precipitation. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 28°C (83°F), with an average of 18°C (65°F). The month is characterized by higher humidity at 82% and some rainfall, totaling 25 mm (1.0 in) over four days. In contrast, July experiences slightly lower temperatures, with an average of 16°C (62°F) and a maximum of 27°C (80°F). Notably, July boasts minimal precipitation, only 5 mm (0.2 in), and remains dry with no rainy days, while humidity levels drop to 77%. For a closer look at the weather specifics, you can refer to Sao Joao del Rei weather in July.

In May, temperatures in Sao Joao del Rei range from a minimum of 5°C (42°F) to a maximum of 28°C (83°F), with an average temperature of 18°C (65°F). The month sees about 25 mm (1.0 in) of precipitation over approximately 4 days, accompanied by high humidity levels at 82%. In contrast, August has slightly warmer temperatures, with a minimum of 6°C (43°F) and a maximum of 30°C (85°F), while the average drops to 17°C (64°F). Precipitation in August is lower, totaling around 21 mm (0.8 in) spread over just 3 days, and the humidity decreases to 72%. For more details on August weather, you can visit Sao Joao del Rei weather in August.

May and September present distinct yet pleasant weather conditions. In May, temperatures range from a cool minimum of 5°C (42°F) to a comfortable maximum of 28°C (83°F), with an average of 18°C (65°F). This month experiences relatively low precipitation of 25 mm (1.0 in) over just four days, coupled with high humidity at 82%. In contrast, September sees slightly warmer temperatures, with a minimum of 10°C (50°F) and a maximum reaching 33°C (92°F), giving an average of 21°C (69°F). However, it receives a bit more rainfall, totaling 37 mm (1.4 in) over the same four days, and humidity drops to a more comfortable 63%. For a closer look at September weather patterns, you can visit Sao Joao del Rei weather in September.

When comparing the weather in May and October, notable differences emerge. In May, temperatures range from a minimum of 5°C (42°F) to a maximum of 28°C (83°F), with an average of 18°C (65°F). This month experiences relatively low precipitation of 25 mm (1.0 in) over just 4 days, along with high humidity levels at 82%. In contrast, October enjoys warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 34°C (93°F), averaging 21°C (70°F). However, it also sees significantly higher precipitation at 109 mm (4.3 in) spread across 14 days, contributing to much lower humidity at 48%. For a detailed look at October’s weather, explore Sao Joao del Rei weather in October.

When comparing the weather in May and November, we see notable differences in both temperature and precipitation. May has a milder climate, with temperatures ranging from a low of 5°C (42°F) to a high of 28°C (83°F), and an average temperature of 18°C (65°F). It experiences relatively low precipitation, averaging only 25 mm (1.0 in) over about 4 days, with humidity levels at 82%.

In contrast, November offers warmer temperatures, with a minimum of 10°C (51°F), an average of 21°C (69°F), and a maximum of 31°C (88°F). However, this month is significantly wetter, recording 169 mm (6.7 in) of rain over 19 days, accompanied by a lower humidity of 61%. For a detailed look at November weather, visit Sao Joao del Rei weather in November.

May and December showcase contrasting weather patterns. In May, temperatures range from a cool minimum of 5°C (42°F) to a warm maximum of 28°C (83°F), with an average of 18°C (65°F). The month experiences light precipitation, totaling 25 mm (1.0 in) over just 4 days, and high humidity at 82%. In contrast, December brings warmer temperatures with a minimum of 13°C (56°F) and a maximum of 31°C (88°F), averaging 22°C (71°F). However, this month sees significantly more rainfall, totaling 211 mm (8.3 in) over 20 days, accompanied by lower humidity at 68%. For more insights, check out Sao Joao del Rei weather in December.

Compare Sao Joao del Rei's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Sao Joao del Rei

May in São João del Rei brings a refreshing change as the city transitions into cooler temperatures, yet still offers warm days perfect for exploration. With an average temperature of 18°C (65°F), it's a month characterized by comfortable weather, making it ideal for outdoor activities. Unlike the heavier rainfall experienced in the summer months, May enjoys a lighter touch, with only 25 mm of precipitation over just a few days. The humidity remains relatively high at 82%, adding a touch of moisture to the air but not overpowering the pleasant atmosphere. For those looking to experience this charming Brazilian town, May presents a fantastic blend of mild weather and occasional showers, striking the right balance for visitors. For more detailed information, check the full breakdown on the Sao Joao del Rei Climate.