May Weather in Santa Rosa, Argentina

Last updated: August 21, 2025

In May, Santa Rosa, Argentina experiences a dynamic weather mix, balancing warmth and coolness. With maximum temperatures peaking at 32°C (89°F) and an average hovering around 18°C (64°F), the climate offers a comfortable early autumn feel. However, residents should prepare for cooler nights as temperatures can drop to a brisk 5°C (41°F). The month sees 129 mm (5.1 in) of rainfall spread over 10 days, paired with a high humidity level of 84%, creating a humid and occasionally damp atmosphere. Overall, May in Santa Rosa is a time when nature transitions, offering both warmth and freshness.

May Temperature in Santa Rosa

As May unfolds in Santa Rosa, Argentina, the temperatures begin to drop, marking the transition from the warm summer months to cooler autumn days. With minimums settling around 5°C (41°F) and averages hovering at 18°C (64°F), residents experience a gentle descent into cooler weather. The maximum temperatures can reach up to 32°C (89°F), offering a pleasant warmth during the day. This month serves as a delightful bridge as the chilly nights draw close, contrasting with the lingering sun of earlier months. Overall, May presents a comfortable climate, ideal for outdoor activities and enjoying the vibrant autumn scenery before the crispness of winter makes its arrival.

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 {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec828076716461596367727680
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 May, Santa Rosa experiences a consistent precipitation trend, with rainfall totaling 129 mm (5.1 in) over 10 days. This keeps pace with the preceding months of April and March, where rainfall was slightly higher at 130 mm and 144 mm respectively. The increase in precipitation during the autumn months suggests a notable shift from the drier spell of summer, characterized by January's 169 mm. Interestingly, while May's rainfall mirrors that of April, it marks a transition as the region moves into the cooler winter months, potentially leading to a gradual decline in precipitation in June, which only sees 66 mm over 8 days. This evolving pattern underscores the dynamic climate of Santa Rosa, characterized by its distinct seasonal variability.

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 {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec16971144130129664047104106136113
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 May, Santa Rosa experiences a significant uptick in humidity, reaching 84%, which marks one of the highest levels in the year. This rise follows the already substantial humidity levels of 81% in April, suggesting a transition into the cooler months with increased moisture in the air. Notably, the late autumn period showcases a distinct trend where humidity remains elevated, contrasting sharply with the dry air of the winter months that follow, particularly in July, when humidity drops to 64%. As the seasons change, May's humidity serves as a reminder of the lush, vibrant transition towards winter in this region of Argentina.

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 {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%61%71%81%84%76%64%46%55%57%59%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santa Rosa

In May, Santa Rosa, Argentina, experiences a notable shift in UV intensity, with a UV Index of 6 categorized as high. This is a step down from the extreme levels observed in the earlier months, offering a bit of relief from the intense sun exposure typical of the summer weeks. With a burn time of 25 minutes, it’s crucial to remain mindful of sun safety during outdoor activities. This trend indicates a gradual easing of sun intensity as the year progresses, paving the way for a more moderate summer transition. For more detailed information on UV exposure in Santa Rosa, visit Santa Rosa UV Index.

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 {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15131210655710121414
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.

May Sunshine in Santa Rosa

In Santa Rosa, Argentina, the month of May brings a gentle transition as the sunshine hours begin to wane, offering 233 hours of bright daylight. While this is a noticeable dip from the vibrant February and March, which bask in over 300 hours, it still maintains a cozy glow compared to the chillier months of June and April. The trend showcases a landscape where summer's exuberance gradually fades into the cooler, softer light of late autumn, yet the sunshine in May continues to outshine the darker days of July. This seasonal shift not only marks a change in the weather but also invites residents and visitors alike to embrace the beauty of Santa Rosa's delicate fall ambiance.

Monthly Sunshine Duration in Santa Rosa: May Highlighted

The May sunshine duration represents the total number of hours Santa Rosa 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.
JanFebMarAprMayJunJulAugSepOctNovDec274h313h314h272h233h223h241h288h278h298h324h376h
Data source: Santa Rosa May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santa Rosa During May

In Santa Rosa, Argentina, the likelihood of enjoying sunny weather in May stands at a promising 63%. This positions May among the months with good chances for sunshine, following the trend of increasing brightness from the cooler seasons. After a notably sunny February with a peak of 67%, the chances fluctuate but tend to hover around the 60% mark in springtime, making May a favorable option for outdoor enthusiasts. As the year progresses, this sunny momentum takes a slight dip in June, dropping to 45%, and highlights May as a delightful window for basking in the autumn sun before the onset of winter clouds.

Percentage of Sunny Days in May in Santa Rosa

The chart illustrates the percentage of sunny days in Santa Rosa 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 Santa Rosa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%67%52%64%63%45%62%71%55%64%66%74%
Data source: Santa Rosa May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santa Rosa in May

As the vibrant summer months of January and February grace Santa Rosa, Argentina, residents enjoy a generous 13 hours of daylight, perfect for outdoor activities and social gatherings. However, as the seasons shift toward autumn, daylight gradually wanes, dipping to 12 hours in March and 11 hours in April. By May, the trend continues, providing 10 hours of daylight, a mark of the approaching winter. This duration remains steady through June and July, before gradually returning to 11 hours in August and September, signaling the onset of spring. The cycle concludes with longer days returning in October and November, ultimately regaining their summer splendor with 13 hours of daylight by December. This rhythmic ebb and flow of light not only influences the local lifestyle but also showcases the enchanting seasonal transitions of Santa Rosa.

Average Daylight Hours in Santa Rosa for May

The chart illustrates the variation in daylight duration in Santa Rosa throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 41m13h 2m12h 12m11h 22m10h 41m10h 21m10h 32m11h 8m11h 55m12h 46m13h 30m13h 53m
Data source: Santa Rosa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Santa Rosa

As May unfolds in Santa Rosa, Argentina, the winds pick up slightly, averaging 3.5 m/s (8 mph), a gentle yet noticeable increase from the preceding months. This trend signals a gradual shift towards stronger breezes, laying the foundation for what will become a windier winter. Notably, May's wind speed is an uptick from April's 3.3 m/s (7 mph), hinting at nature's impending transition. The city experiences this subtle escalation as it moves from the milder early months of the year, paving the way for the invigorating gusts that characterize the region’s winters, especially as it approaches September, when winds soar to an average of 4.3 m/s (10 mph). Overall, May serves as a bridge between the calmer autumn winds and the more robust gusts on the horizon, inviting residents and visitors alike to embrace the refreshing change in the air.

Average May Wind Speed in Santa Rosa

The chart displays monthly wind speed patterns in Santa Rosa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.73.13.13.33.5 m/s3.63.63.94.33.93.93.8
Data source: Santa Rosa May wind data, generated using information from the Copernicus Climate Change Service.

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.

May and January present contrasting weather patterns, highlighting the seasonal transition. In May, temperatures range from a cool 5°C (41°F) at night to a mild 32°C (89°F) during the day, with an average of 18°C (64°F). The month experiences significant rainfall, with about 129 mm (5.1 inches) over 10 days and a high humidity level of 84%. In contrast, January boasts much warmer conditions, with nighttime lows of 15°C (58°F) and daytime highs soaring up to 43°C (109°F), averaging 28°C (82°F). Precipitation in January is slightly higher at 169 mm (6.6 inches), also spread over 10 days, but the humidity is notably lower at 66%. For more detailed information about weather conditions in January, you can check Santa Rosa weather in January.

In comparing the weather of May and February, we can see notable differences. May experiences a minimum temperature of 5°C (41°F) and an average of 18°C (64°F), with occasional highs reaching 32°C (89°F). It is characterized by higher humidity at 84% and more precipitation, totaling 129 mm (5.1 in) over about 10 days. In contrast, February boasts warmer temperatures with a minimum of 13°C (55°F), an average of 26°C (80°F), and peaks as high as 42°C (107°F). February also sees less rainfall, with only 71 mm (2.8 in) across 8 days, and lower humidity at 61%. These contrasts highlight how February can feel significantly hotter and drier compared to the cooler, wetter conditions of May. For more details, you can check Santa Rosa weather in February.

In comparing the weather between March and May, we observe notable differences in temperature and precipitation. March tends to be warmer overall, with minimum temperatures starting at 12°C (53°F) and average highs reaching up to 40°C (104°F). In contrast, May features cooler minimum temperatures at 5°C (41°F) and an average high of 32°C (89°F). Precipitation levels are fairly similar, with March receiving 144 mm (5.7 in) over 9 days and May receiving 129 mm (5.1 in) over 10 days. Additionally, March has lower humidity at 71%, compared to 84% in May. For a more detailed look at March weather, you can refer to Santa Rosa weather in March.

In comparing the weather between April and May, it's clear that both months experience high temperatures and significant precipitation. April has slightly higher average and maximum temperatures, with an average of 22°C (71°F) and a maximum of 35°C (95°F). In contrast, May's temperatures are cooler, averaging 18°C (64°F) and reaching a maximum of 32°C (89°F). Precipitation levels are quite similar, with April receiving 130 mm (5.1 in) over 7 days, and May slightly less at 129 mm (5.1 in) over 10 days. Interestingly, May also has a higher average humidity at 84%, compared to April's 81%. For a closer look at April's climate, you can visit Santa Rosa weather in April.

In May, the weather exhibits a broader temperature range with a minimum of 5°C (41°F) and an average of 18°C (64°F), reaching up to a maximum of 32°C (89°F). This month also sees higher precipitation levels, with 129 mm (5.1 in) of rainfall over approximately 10 days and an increased humidity of 84%. In contrast, June experiences slightly cooler temperatures, with a minimum of 2°C (35°F), an average of 16°C (61°F), and a maximum that remains the same at 32°C (89°F). Rainfall decreases significantly to 66 mm (2.6 in) over just 8 days, accompanied by lower humidity at 76%. For more details on the weather in June, you can visit Santa Rosa weather in June.

In comparing the weather between May and July, we see distinct differences in temperature and precipitation patterns. May experiences a broader range of temperatures, with a minimum of 5°C (41°F) and an average of 18°C (64°F), peaking at a warm 32°C (89°F). The month is marked by significant rainfall, accumulating 129 mm (5.1 in) over approximately 10 days, and higher humidity levels at 84%. In contrast, July offers cooler conditions with a minimum temperature of 0°C (32°F) and a lower average of 15°C (60°F), while still reaching a maximum of 32°C (91°F). Notably, July is much drier, with only 40 mm (1.6 in) of precipitation over about 5 days and a decrease in humidity to 64%. For more detailed insights, you can check out Santa Rosa weather in July.

In May, temperatures range from a chilly 5°C (41°F) at night to a warm 32°C (89°F) during the day, with an average of 18°C (64°F). This month is characterized by significant precipitation, receiving about 129 mm (5.1 in) over roughly 10 days, alongside high humidity at 84%. Conversely, August sees a broader temperature spectrum, with lows dropping to 0°C (32°F) and highs reaching up to 37°C (99°F), averaging 17°C (63°F). Precipitation is much lower in August at 47 mm (1.9 in) over about 5 days, and the humidity drops to a more moderate 46%. For more details on August weather, you can check Santa Rosa weather in August.

May and September present distinct weather characteristics, showcasing a shift from spring to late winter conditions. In May, temperatures range from a minimum of 5°C (41°F) to a warm average of 18°C (64°F), peaking at a maximum of 32°C (89°F). This month is marked by higher humidity at 84% and substantial precipitation of 129 mm (5.1 in) over approximately 10 days. In contrast, September enjoys milder temperatures, with a minimum of 7°C (44°F) and an average of 20°C (68°F), soaring to a maximum of 39°C (102°F). This month experiences lesser rainfall, totaling 104 mm (4.1 in) across 9 days, and significantly lower humidity at 55%. For more detailed information, you can visit Santa Rosa weather in September.

In May, temperatures in Santa Rosa range from a minimum of 5°C (41°F) to a maximum of 32°C (89°F), with an average of 18°C (64°F). The month sees significant rainfall, with 129 mm (5.1 in) spread over 10 days and a high humidity level of 84%. In contrast, October offers warmer conditions, with temperatures starting at a minimum of 10°C (50°F) and reaching highs of 41°C (107°F), and an average of 22°C (72°F). Despite slightly lower precipitation of 106 mm (4.2 in) also over 10 days, the humidity drops to 57%. For more detailed information on October weather, you can check Santa Rosa weather in October.

In comparing the weather between May and November, it's clear that November tends to be warmer and drier. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (89°F), with an average of 18°C (64°F), while November sees milder temperatures, with a minimum of 11°C (52°F) and a maximum of 40°C (104°F), averaging 25°C (76°F). Precipitation is slightly higher in May at 129 mm (5.1 in) over 10 days, compared to November's 136 mm (5.4 in) spread over just 8 days. Additionally, humidity is significantly higher in May at 84%, whereas November experiences a drier climate with humidity around 59%. For more detailed insights, you can check Santa Rosa weather in November.

In comparing the weather of May and December, it is evident that December tends to be warmer and more humid. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 32°C (89°F), with an average of 18°C (64°F). The month also sees considerable rainfall, accumulating 129 mm (5.1 in) over 10 days, alongside a high humidity level of 84%. In contrast, December boasts a higher temperature range, with minimums of 13°C (55°F) and maximums reaching 40°C (104°F), while averaging at 26°C (80°F). Precipitation is slightly lower at 113 mm (4.5 in) over just 7 days, and humidity is reduced to 75%. For more detailed information about December weather, you can visit Santa Rosa weather in December.

Compare Santa Rosa's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Santa Rosa

As May unfolds in Santa Rosa, it brings a delightful shift in weather dynamics. The transition from warmer days to cooler nights is notable, with temperatures ranging comfortably from mild to warm, creating an engaging atmosphere for outdoor activities. While the average temperatures provide a pleasant backdrop, the increased humidity at 84% paired with occasional rainfall—spanning around 10 days and totaling approximately 129 mm—invigorates the lush surroundings. This month stands in contrast to the drier, hotter summer months, offering a refreshing respite that enhances the vibrant local flora. For a more in-depth look at how these weather patterns influence the region throughout the year, visit Santa Rosa Climate.