May Weather in Caxias do Sul, Brazil

Last updated: August 21, 2025

In Caxias do Sul, Brazil, May brings a blend of pleasant warmth and refreshing rainfall. With daily temperatures ranging from a minimum of 1°C (33°F) to a maximum of 29°C (84°F), the month maintains an average temperature of 15°C (59°F). Rainfall is notable, totaling 175 mm (6.9 in) over approximately 12 days, contributing to the region's lush greenery. Humidity levels are high, averaging around 88%, enveloping the town in a moist atmosphere that complements the mild temperatures. This combination of weather elements creates a unique experience, perfect for both outdoor activities and cozy indoor moments.

May Temperature in Caxias do Sul

In Caxias do Sul, Brazil, May marks a notable shift towards cooler temperatures as the region transitions into winter. The month begins with a minimum temperature of 1°C (33°F) and an average of 15°C (59°F), indicating a drop after the warmth of earlier months. However, daytime highs can still reach a pleasant 29°C (84°F), offering a mix of crisp mornings and comfortable afternoons. This trend reflects a gradual cooling compared to April, which showcases warmer averages. As May closes, residents can expect further decreases in temperature, paving the way for the chillier months ahead. Overall, May perfectly encapsulates the fresh, invigorating spirit of autumn in southern Brazil.

May Weather in Caxias do Sul: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Caxias do Sul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caxias do Sul, 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).
JanFebMarAprMayJunJulAugSepOctNovDec727169655957555862646770
Data source: Temperature data for Caxias do Sul 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 Caxias do Sul

May is a notably wet month in Caxias do Sul, Brazil, where the region typically receives 175 mm (6.9 in) of precipitation over 12 days. This spike in rainfall follows a trend of decreasing precipitation throughout the earlier months, with April's total dropping to 99 mm (3.9 in), highlighting a significant increase in moisture as autumn transitions to winter. The month’s rainfall surpasses that of several other months, including the preceding April and even the dry winter months that follow. With 12 rainy days, May offers a vibrant contrast to the drier spell of April, as the lush landscapes of Caxias do Sul thrive in this nourishing downpour, setting the stage for May's cool climate and rich biodiversity.

May Precipitation Trends in Caxias do Sul

The chart displays monthly precipitation patterns in Caxias do Sul, 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 Caxias do Sul, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1691611319917513513990177162150111
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Caxias do Sul

In May, Caxias do Sul experiences a notable peak in humidity, reaching 88%, making it one of the wettest months of the year. This rise follows a slightly lower level in April at 83%, indicating a trend of increasing moisture as autumn progresses towards winter. With humidity levels consistently high throughout the year, including 86% in June and 82% in July, it’s clear that this region embraces a humid climate. As summer months like January and February show slightly lower humidity around 80% and 77% respectively, the trend showcases a shift to higher levels, particularly in late autumn and winter, providing a unique blend of fresh air and lush vegetation for residents and visitors alike.

May Average Humidity in Caxias do Sul

This chart illustrates the average monthly humidity levels in Caxias do Sul, 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 Caxias do Sul is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%79%83%88%86%82%77%80%84%83%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Caxias do Sul

As May arrives in Caxias do Sul, Brazil, residents can expect a UV Index of 6, categorized as high. This marks a noticeable decline from the extreme levels seen at the beginning of the year, which peaked at 15 in January and February. With a burn time of 25 minutes, it’s a more forgiving month in terms of sun exposure, encouraging outdoor activities while still emphasizing the importance of protection against UV rays. Following the intense sun of earlier months, May provides a breathing space before the UV levels dip to moderate in June. For those keen to monitor the UV trends and stay safe under the sun, additional insights can be found here: Caxias do Sul UV Index.

Maximum UV Index Levels in Caxias do Sul for May

The chart shows the monthly maximum UV Index (UVI) for Caxias do Sul 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 Caxias do Sul typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210655710131415
Data source: Caxias do Sul 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 Caxias do Sul

In Caxias do Sul, May marks the transition towards the cooler months with 226 hours of sunshine, a dip from the vibrant days of February and November, which boast over 300 hours. As summer fades, the city enjoys a softer glow, reflecting a general trend of fluctuating daylight hours. April prepares the stage with 265 hours, while June follows closely at 216 hours, signifying the approach of winter. Intriguingly, May serves as a bridge, highlighting the gentle ebb of sunlight as the year progresses towards its darker months. Despite the reduction, May still holds a charm with its moderate sunshine, inviting residents and visitors alike to savor the beauty of Caxias do Sul during this transitional period.

Monthly Sunshine Duration in Caxias do Sul: May Highlighted

The May sunshine duration represents the total number of hours Caxias do Sul 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.
JanFebMarAprMayJunJulAugSepOctNovDec260h306h302h265h226h216h245h265h240h275h315h362h
Data source: Caxias do Sul May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Caxias do Sul During May

In Caxias do Sul, the likelihood of sunny weather in May stands at a promising 57%, aligning with a trend of increasing sunshine as the year progresses. Following a relatively overcast April with a 52% chance of sun, May not only matches the sunniest months of February and July but also offers a refreshing contrast to the cooler, cloudier months of June and September. This data suggests that May is an opportune time for outdoor activities, as the transition to winter brings clearer skies. Embracing the warmth of late autumn, residents and visitors alike can look forward to enjoying those vibrant, sun-kissed days in May.

Percentage of Sunny Days in May in Caxias do Sul

The chart illustrates the percentage of sunny days in Caxias do Sul 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 Caxias do Sul experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec38%57%36%52%57%32%61%48%31%44%51%56%
Data source: Caxias do Sul May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Caxias do Sul in May

As the seasons turn in Caxias do Sul, Brazil, the duration of daylight experiences a captivating ebb and flow. Starting strong in January and February with an invigorating 13 hours of daylight, the days gradually shorten, reaching 12 hours in March and peaking at 11 in April. May marks a noticeable transition as daylight dips to 10 hours, a trend that continues into June and July. However, as winter wanes, daylight begins to recover, extending slightly to 11 hours in August and September. This gradual increase continues into October, where daylight returns to 12 hours, eventually blossoming back to 13 hours in November and December, heralding the arrival of summer. The rhythmic cycle of daylight in Caxias do Sul beautifully mirrors the seasonal shift, captivating residents and visitors alike.

Average Daylight Hours in Caxias do Sul for May

The chart illustrates the variation in daylight duration in Caxias do Sul throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 45m13h 4m12h 12m11h 20m10h 37m10h 17m10h 28m11h 5m11h 55m12h 48m13h 34m13h 58m
Data source: Caxias do Sul daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Caxias do Sul

As May arrives in Caxias do Sul, Brazil, residents can expect pleasant breezes with an average wind speed of 2.2 m/s (5 mph), maintaining the calm and gentle trends seen in the preceding months. The wind speeds during this time echo the cooler autumn days, mirroring those of April while hinting at a gradual uptick as summer approaches. Throughout the year, especially from May to October, winds average around 2.5 m/s (6 mph), signaling a shift towards more vigorous breezes in the colder months. This gentle flow in May not only enhances the city's picturesque landscapes but also invites residents and visitors alike to enjoy outdoor activities in the refreshing air.

Average May Wind Speed in Caxias do Sul

The chart displays monthly wind speed patterns in Caxias do Sul, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.12.02.22.2 m/s2.52.62.52.52.52.52.3
Data source: Caxias do Sul May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Caxias do Sul Compares to Other Months

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

When comparing the weather in May and January, notable differences emerge. May tends to be cooler with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 29°C (84°F), while January boasts a milder range with minimums of 9°C (49°F) and highs reaching up to 36°C (97°F). Although May experiences higher humidity at 88%, January's humidity remains relatively comfortable at 80%. Both months encounter significant rainfall, with May receiving about 175 mm (6.9 in) over 12 days and January having 169 mm (6.6 in) over 15 days. For more information on January weather, refer to Caxias do Sul weather in January.

When comparing the weather in May and February, notable differences emerge in temperature and humidity. In May, temperatures range from a chilly minimum of 1°C (33°F) to a warm maximum of 29°C (84°F), with an average of 15°C (59°F). The month also experiences higher humidity levels at 88% and considerable rainfall, accumulating around 175 mm (6.9 in) over 12 days. In contrast, February boasts milder temperatures with a minimum of 10°C (50°F), an average of 21°C (71°F), and a maximum of 33°C (92°F). This month sees slightly lower precipitation at 161 mm (6.3 in), spread over 14 days, and a more comfortable humidity level of 77%. For more detailed insights, check out Caxias do Sul weather in February.

In comparing the weather between May and March, it’s evident that both months feature variable conditions, but they do have distinct differences. March typically has warmer temperatures, with average highs reaching 34°C (94°F) and lows at 8°C (46°F), while May sees a more moderate temperature range, with an average high of 29°C (84°F) and a low of 1°C (33°F). Precipitation levels are also notable; May receives a total of 175 mm (6.9 in) over 12 days, whereas March has slightly less, measuring 131 mm (5.2 in) over 13 days. Additionally, the humidity is higher in May at 88%, compared to 79% in March. For more detailed information, you can visit Caxias do Sul weather in March.

In comparing the weather between April and May, we see some noteworthy differences. April tends to be slightly warmer with average temperatures around 18°C (65°F) and a maximum reaching 30°C (87°F), while May's average temperature drops to 15°C (59°F) with a maximum of 29°C (84°F). However, May is characterized by significantly higher precipitation, totaling 175 mm (6.9 in) over 12 days compared to April's 99 mm (3.9 in) across 10 days. Additionally, May exhibits a higher humidity level at 88% compared to April's 83%. For a more detailed look at April's weather patterns, you can visit Caxias do Sul weather in April.

May and June present a contrast in weather, particularly in temperature and precipitation patterns. In May, temperatures range from a minimum of 1°C (33°F) to a maximum of 29°C (84°F), with an average of 15°C (59°F). The month sees significant rainfall, totaling 175 mm (6.9 in) over 12 days, and a high humidity of 88%. In comparison, June experiences slightly cooler conditions with a minimum temperature of -2°C (29°F) and an average temperature of 14°C (57°F), while still reaching a maximum of 29°C (84°F). Rainfall decreases to 135 mm (5.3 in) over 11 days, and humidity is marginally lower at 86%. For more detailed insights, check out Caxias do Sul weather in June.

In comparing the weather between May and July, we see notable differences in temperature and precipitation. May boasts a wider temperature range with a minimum of 1°C (33°F), an average of 15°C (59°F), and a maximum of 29°C (84°F), while July's temperatures are cooler, with a minimum of -3°C (27°F), an average of 13°C (55°F), and a maximum of 28°C (83°F). Additionally, May experiences more rainfall, totaling 175 mm (6.9 in) over 12 days, compared to July's 139 mm (5.5 in) spread across 9 days. Humidity levels are relatively high in both months, with May at 88% and July slightly lower at 82%. For more detailed information on July's weather, check out Caxias do Sul weather in July.

In May, temperatures in Caxias do Sul range from a chilly 1°C (33°F) to a warm high of 29°C (84°F), with an average of 15°C (59°F). This month also sees significant precipitation, with 175 mm (6.9 in) falling over approximately 12 days and a high humidity level of 88%. In contrast, August experiences a broader temperature range, with lows dropping to -2°C (28°F) and highs reaching 31°C (89°F). While the average temperature remains slightly cooler at 14°C (58°F), there is notably less rainfall, totaling 90 mm (3.5 in) over 8 days, and humidity decreases to 77%. For more detailed weather information, check out Caxias do Sul weather in August.

In comparing the weather between May and September, we see some subtle yet noticeable differences. May experiences a minimum temperature of 1°C (33°F) and an average of 15°C (59°F), peaking at 29°C (84°F), while September is slightly cooler at a minimum of 0°C (31°F) and boasts an average of 17°C (62°F), with a maximum reaching 33°C (92°F). Precipitation levels remain similar, with May seeing 175 mm (6.9 in) and September just slightly higher at 177 mm (7.0 in), over approximately the same number of rainy days—12. Additionally, humidity is higher in May at 88%, compared to September's 80%. For more details about the weather in September, visit Caxias do Sul weather in September.

In May, the weather exhibits a broader temperature range, with minimums dropping to 1°C (33°F) and maximums peaking at 29°C (84°F), averaging around 15°C (59°F). The month is characterized by relatively high humidity at 88% and significant precipitation, totaling 175 mm (6.9 in) over 12 days. In contrast, October offers warmer conditions, with a higher average temperature of 18°C (65°F) and maximums reaching an impressive 35°C (95°F). While October sees slightly less precipitation at 161 mm (6.4 in) over 14 days, humidity remains slightly lower at 84%. For more details, you can check the Caxias do Sul weather in October.

When comparing May and November weather, we see notable differences in temperature and humidity. May experiences cooler temperatures, with a minimum of 1°C (33°F) and an average of 15°C (59°F), while November warms up significantly, featuring a minimum of 7°C (44°F) and an average of 19°C (67°F). Although both months receive around 150-175 mm of precipitation over roughly 12 days, November has slightly less rainfall. Humidity levels are also comparable, with May at 88% and November at 83%. For more insights into November conditions, you can check out Caxias do Sul weather in November.

May and December in Caxias do Sul present distinct climatic contrasts. May experiences cooler temperatures, with a minimum of 1°C (33°F) and an average of 15°C (59°F), peaking at 29°C (84°F). It is also characterized by higher precipitation levels, with 175 mm (6.9 in) over 12 days and a humidity level of 88%. In contrast, December boasts warmer conditions, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 35°C (95°F), and an average of 21°C (71°F). Interestingly, while it is warmer, December sees less precipitation at 111 mm (4.4 in) over 13 days, and slightly lower humidity at 87%. For those looking for more information, check out Caxias do Sul weather in December.

Compare Caxias do Sul's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Caxias do Sul

As May arrives in Caxias do Sul, residents experience a delightful shift in weather, characterized by mild temperatures and a noticeable increase in humidity. Unlike the hotter summer months, May brings refreshing days that average a comfortable 15°C, with cooler nights reminding us that winter is on the horizon. Although the month sees some precipitation over 12 days, it typically prepares the region for the drier winter to come, making the lush landscapes even more vibrant. This transitional period is perfect for enjoying outdoor activities without the sweltering heat, offering a unique charm that sets May apart from the rest of the year. For more insights on the weather patterns in this beautiful city, check out Caxias do Sul Climate.