May Weather in Santa Rosa, Argentina

Last updated: August 21, 2025

In May, Santa Rosa, Argentina experiences a fascinating blend of temperatures, with a maximum reaching 29°C (84°F) and a minimum dipping to -3°C (28°F). The average temperature hovers around a comfortable 12°C (54°F), making it a transitional month as autumn settles in. During this period, the region receives 44 mm (1.7 in) of precipitation over approximately 5 days, contributing to the 72% humidity that characterizes the month. This combination of mild conditions and occasional rainfall paints a picturesque scene, perfect for those seeking to experience the unique charm of Santa Rosa in late autumn.

May Temperature in Santa Rosa

In May, temperatures in Santa Rosa, Argentina experience a notable drop as autumn sets in, contrasting sharply with the summer months. The average temperature falls to a cool 12°C (54°F), with nighttime lows plunging to a chilly -3°C (28°F). This month also marks the transition to milder days, where maximum temperatures can still reach a pleasant 29°C (84°F), offering a blend of crisp mornings and comfortable afternoons. As the city shifts from the warmth of April, the cooler May climate signals the onset of winter's approach, compelling residents and visitors alike to embrace cozy layers and warm beverages.

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).
JanFebMarAprMayJunJulAugSepOctNovDec757368625347465055616773
Data source: Temperature data for Santa Rosa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 moderate decline in precipitation, with 44 mm (1.7 in) of rain falling over 5 days. This marks a significant dip from the wetter months of March and April, which saw 70 mm (2.7 in) and 84 mm (3.3 in) respectively. Despite this reduction, May remains significantly wetter than the upcoming months, particularly June, where only 24 mm (1.0 in) of rain is expected over just 3 days. This trend highlights a transition towards the drier winter season, making May a pivotal month as the city shifts away from its rainier spring 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 {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec365070844425181150448769
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Santa Rosa

In Santa Rosa, Argentina, May marks a significant transition in humidity levels, with the average rising to 72%—an increase from the previous month's 71%. This upward trend is part of a broader pattern where humidity steadily climbs from the drier months of January and February, which see averages of 44% and 49%, respectively. As autumn progresses into winter, the humidity begins to decline, dropping to 65% by June. Overall, after reaching its peak in May, a gradual decrease occurs, suggesting a seasonal rhythm that contrasts with the preceding summer months, when humidity remains notably lower. The shift in moisture content not only influences the local climate but also impacts the natural landscape, making May a pivotal month for experiencing the evolving atmosphere of Santa Rosa.

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.
JanFebMarAprMayJunJulAugSepOctNovDec44%49%60%71%72%65%61%56%59%50%45%40%
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 experiences a moderate UV Index of 5, indicating a more manageable level of sun exposure compared to the extreme readings seen in the peak summer months. With a burn time of 30 minutes, residents and visitors can enjoy the milder sunlight while still taking necessary precautions, especially on sunny days. This shift from April’s high index of 7 not only signifies a gradual decline in UV intensity as the seasons transition, but also underscores the importance of sun safety as the weather warms up. As you prepare for outdoor activities, remember to stay informed about the UV levels to protect your skin—check out the latest data at 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.
JanFebMarAprMayJunJulAugSepOctNovDec141311753457101314
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 May, Santa Rosa, Argentina, experiences a notable transition as the days begin to shorten, bringing an average of 227 hours of sunshine. This is a slight dip from the vibrant months of January and February, which bask in 313 and 333 hours of sunlight respectively. As autumn settles in, the sun’s embrace lessens, yet the city's charm remains intact. With April wrapping up with 246 hours, May's sunshine feels like a gentle reminder of the brighter days ahead. The trend continues into the winter months, with June and July providing even less sunlight, at 211 and 229 hours respectively. However, as the year progresses towards spring, there’s an uptick in brightness, hinting at renewal and the delightful return of longer days. This pattern of sunshine reflects both the cycling seasons and the hopeful transition towards the sunnier months ahead.

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.
JanFebMarAprMayJunJulAugSepOctNovDec313h333h322h246h227h211h229h280h278h328h349h388h
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

As May approaches in Santa Rosa, Argentina, the likelihood of sunny weather dips to 55%, marking a notable reduction compared to the sunnier earlier months like February, which boasts a 70% chance. This month stands out as a transitional period; while April enjoys a 71% sunshine probability, May's forecast hints at the onset of cooler, cloudier conditions typical of winter. The trend shows a steady decline from the late summer months, with June reflecting the lowest chance of 45%. However, residents and visitors can still enjoy a fair share of sunny days, particularly compared to the clouds that often gather in the subsequent winter months.

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.
JanFebMarAprMayJunJulAugSepOctNovDec66%70%63%72%55%45%68%66%57%74%63%62%
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

In Santa Rosa, Argentina, May marks a transition into the cooler months, with daylight lasting 10 hours. This reflects a gradual decline from January's 14 hours, as the city progresses through the autumn season. Each month sees a steady decrease in daylight, peaking in the summer and dipping as winter approaches. Interestingly, May serves as a pivot point, with the gradual reduction giving way to a brief resurgence in daylight during August, which also sees 10 hours before the days lengthen again in the spring. This rhythmic dance of daylight encapsulates Santa Rosa's seasonal changes, shaping the community's outdoor activities and daily rhythms.

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.
JanFebMarAprMayJunJulAugSepOctNovDec14h 18m13h 24m12h 15m11h 5m10h 8m9h 40m9h 55m10h 46m11h 52m13h 2m14h 4m14h 36m
Data source: Santa Rosa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Santa Rosa

In May, Santa Rosa experiences a gentle breeze, with an average wind speed of 2.9 m/s (7 mph). This slightly lower wind speed compared to April's 3.3 m/s marks the transition into the cooler months, as the city's winds gradually ease into winter. Interestingly, the overall pattern shows that wind speeds tend to be milder during the late summer and early autumn months, peaking again in spring and early fall. As the year progresses, wind speeds fluctuate between 3.0 m/s and 3.7 m/s, hinting at a refreshing consistency that accompanies the seasonal shifts, enhancing the region's charm and providing a delightful backdrop for outdoor activities.

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.
JanFebMarAprMayJunJulAugSepOctNovDec3.72.83.13.32.9 m/s3.03.03.13.73.53.43.0
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 strikingly different weather conditions. In May, temperatures range from a chilly minimum of -3°C (28°F) to a pleasant average of 12°C (54°F), peaking at a maximum of 29°C (84°F). The month experiences about 44 mm (1.7 in) of precipitation over approximately 5 days, alongside a relatively high humidity level of 72%. In contrast, January boasts milder temperatures with minima around 8°C (48°F) and a significantly warmer average of 24°C (76°F), rising up to a sweltering maximum of 40°C (104°F). Despite slightly less precipitation at 36 mm (1.4 in) over 6 days, January's humidity is notably lower at 44%. For more detailed weather insights, you can visit Santa Rosa weather in January.

May and February present contrasting weather patterns. In May, temperatures range from a chilly minimum of -3°C (28°F) to a pleasant average of 12°C (54°F), with highs reaching up to 29°C (84°F). The month experiences about 44 mm (1.7 in) of precipitation over five days and a relative humidity of 72%. In contrast, February boasts warmer temperatures, with a minimum of 6°C (44°F), an average of 23°C (73°F), and highs soaring to 37°C (99°F). Although February has slightly higher precipitation at 50 mm (2.0 in) over the same five days, it enjoys lower humidity at 49%. For more details on February weather, check out Santa Rosa weather in February.

In comparing the weather between May and March, we can see distinct differences in temperature and precipitation patterns. March generally offers warmer conditions with average temperatures reaching 20°C (68°F), peaking at a maximum of 36°C (96°F), while May experiences cooler averages around 12°C (54°F), with highs of up to 29°C (84°F). Additionally, March has higher precipitation levels, with 70 mm (2.7 in) recorded over 7 days, compared to May's 44 mm (1.7 in) across 5 days. Interestingly, March also has lower humidity at 60%, while May sees a higher humidity rate of 72%. For more details on March's weather, you can visit Santa Rosa weather in March.

May's weather shows a wider temperature range with minimums dropping to -3°C (28°F) and maximums reaching 29°C (84°F), resulting in an average of 12°C (54°F). In contrast, April experiences milder temperatures, with a minimum of 1°C (33°F) and a maximum of 31°C (89°F), averaging 17°C (62°F). While May has lower precipitation at 44 mm (1.7 in) over 5 days, April sees higher levels at 84 mm (3.3 in) across 6 days. Humidity levels remain similar, with May at 72% and April at 71%. For more detailed insights, you can check Santa Rosa weather in April.

In comparing the weather of May and June, May generally experiences warmer temperatures, with an average of 12°C (54°F) and a maximum reaching 29°C (84°F). In contrast, June sees cooler conditions, with an average temperature of just 8°C (47°F) and a maximum of 22°C (72°F). While May has more precipitation at 44 mm (1.7 in) over five days, June is drier with only 24 mm (1.0 in) falling over three days. Additionally, June's humidity is slightly lower at 65%, compared to May's 72%. For more detailed information, you can check Santa Rosa weather in June.

In May, temperatures can range significantly, with a minimum of -3°C (28°F) and an average of 12°C (54°F), peaking at a maximum of 29°C (84°F). The month experiences moderate precipitation, totaling 44 mm (1.7 in) over about 5 days, coupled with a humidity level of 72%. In contrast, July’s weather is cooler, with a minimum temperature of -4°C (24°F), an average of 8°C (46°F), and a maximum of 23°C (73°F). This month sees significantly lower precipitation at 18 mm (0.7 in) across just 4 days, and humidity drops to 61%. For more detailed information, check Santa Rosa weather in July.

In comparing the weather between May and August, we find distinct differences in temperature and humidity. May has a warmer average temperature of 12°C (54°F), with a minimum of -3°C (28°F) and a maximum reaching 29°C (84°F). In contrast, August experiences a slightly cooler average of 10°C (50°F), with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 29°C (84°F). Additionally, May sees more precipitation, accumulating 44 mm (1.7 in) over 5 days, while August is much drier, recording only 11 mm (0.4 in) across just 2 days. Humidity levels in May are higher at 72%, compared to a comfortable 56% in August. For more details, you can check Santa Rosa weather in August.

May and September present unique weather characteristics, each with its own charm. In May, temperatures range from a chilly minimum of -3°C (28°F) to a pleasant average of 12°C (54°F), peaking at a warm 29°C (84°F). During this month, rainfall amounts to about 44 mm (1.7 in) over roughly five days, accompanied by a higher humidity level of 72%. In contrast, September brings slightly cooler temperatures, with a minimum of -5°C (23°F) and an average of 13°C (56°F), while the maximum can reach up to 32°C (91°F). Rainfall increases to 50 mm (2.0 in) over the same five days, but the humidity drops to a more comfortable 59%. For a detailed look at September weather conditions, you can check Santa Rosa weather in September.

May and October showcase notable differences in weather patterns. In May, temperatures can dip as low as -3°C (28°F), with an average of 12°C (54°F) and a maximum of 29°C (84°F). The month experiences around 44 mm (1.7 in) of precipitation over about 5 days, along with higher humidity levels at 72%. In contrast, October offers a milder experience, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 35°C (96°F) and an average of 16°C (61°F). While October also sees about 44 mm (1.7 in) of rainfall, it has more rainy days—approximately 7—and a significantly lower humidity of 50%. For more information, you can check Santa Rosa weather in October.

May and November present notably different weather profiles. In May, temperatures can drop to a chilly minimum of -3°C (28°F), with an average of 12°C (54°F) and a maximum reaching 29°C (84°F). The month typically sees around 44 mm (1.7 in) of precipitation over 5 days, combined with a humidity level of 72%. In contrast, November features milder temperatures, with a minimum of 5°C (41°F), an average of 20°C (68°F), and a much warmer maximum of 36°C (97°F). Precipitation increases to 87 mm (3.4 in) over 9 days, but humidity drops significantly to 45%, making it feel drier. For more details on November weather, visit Santa Rosa weather in November.

When comparing the weather in May and December, there are notable differences in temperature and humidity. May experiences a broader temperature range with a minimum of -3°C (28°F) and a maximum of 29°C (84°F), averaging around 12°C (54°F). In contrast, December offers much warmer conditions, with temperatures ranging from 8°C (47°F) to 38°C (101°F), averaging 23°C (73°F). Additionally, May sees higher humidity levels at 72%, while December's humidity drops to 40%. Precipitation also varies, with May receiving 44 mm (1.7 in) over about 5 days, compared to December's 69 mm (2.7 in) spread across 8 days. For a more detailed look into December's weather, 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, temperatures become more moderate, creating a pleasant contrast to the extremes of previous months. With a comfortable average hovering around 12°C, it marks a gentle transition into the cooler season, making outdoor activities enjoyable. While occasional rain falls across approximately five days, contributing to a total of 44 mm, the overall humidity remains at a notable 72%, adding a refreshing touch to the air. This month stands out for its milder climate, a stark deviation from the heat of summer and the chillier temperatures that follow, making it an ideal time to experience the natural beauty of Santa Rosa. For more details on the climatic patterns, visit Santa Rosa Climate.