Last updated: August 21, 2025
May in La Rioja, Argentina brings a mild climate with temperatures ranging from a maximum of 28°C (83°F) to a minimum of 2°C (36°F), averaging around 15°C (60°F). This transitional month experiences 23 mm (0.9 in) of precipitation over approximately 5 days, contributing to a relatively high humidity level of 82%. Visitors can expect a pleasant atmosphere, ideal for enjoying the scenic beauty of the region while being prepared for occasional rain.
In May, La Rioja, Argentina, marks a significant shift in temperatures as the region transitions into the cooler months. With minimums dipping to around 2°C (36°F) and average highs reaching a comfortable 28°C (83°F), the weather creates a pleasant yet invigorating atmosphere. This month showcases a notable decrease from the warm summer peaks of January, where temperatures soared up to 41°C (107°F). The gradual cooling trend from April, which featured an average of 20°C (69°F), highlights May's crisp air, perfect for outdoor activities while still providing warm afternoons. Overall, May embodies a perfect blend of refreshing mornings and sunny afternoons, making it an appealing time for visitors to experience La Rioja's natural beauty.
In May, La Rioja experiences a noticeable decline in precipitation, with only 23 mm (0.9 in) of rain recorded over the month, the lowest since April. This drop is part of a larger trend, as the region shifts from the wetter months of summer to the aridity of winter. Rainfall occurs on about 5 days, suggesting that while showers are less frequent, they still contribute to the overall moisture. The significant reduction in precipitation from April's 33 mm offers a clear indication that the landscape is gradually gearing up for the drier conditions that come with June and July. As temperatures cool, La Rioja's May serves as a transitional month, setting the stage for the starkly reduced rainfall of the colder season.
In La Rioja, Argentina, the humidity levels exhibit a noticeable trend as the seasons change. Starting the year with a moderate 63% in January, humidity gradually rises, peaking at an impressive 83% in April. As May arrives, the humidity remains relatively high at 82%, indicating a continuation of the dampness from the previous month. However, as the region transitions into the cooler months, a significant drop is observed, with June dipping to 72%. This pattern highlights a distinct seasonal fluctuation; while the onset of autumn brings elevated humidity, the winter months usher in a drier atmosphere, notably seen with July's low of 57%. Overall, the trend reflects La Rioja's shift from humid summer and fall conditions to drier winters.
In May, La Rioja, Argentina experiences a UV Index of 6, categorized as high, which allows for a burn time of about 25 minutes. This marks a noticeable decline from the extreme levels typical of the summer months, where indices soared to 15 and 14 in January and February, respectively. As the seasons transition, the UV Index decreases, indicating a reduction in sun intensity, yet it remains essential for residents and visitors alike to remain vigilant during outdoor activities. The month’s index is higher than the moderate levels seen in June, suggesting a gradual shift towards milder sun exposure. For more insights on UV trends and safety precautions, check out La Rioja UV Index.
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In La Rioja, Argentina, May brings a modest 277 hours of sunshine, marking the onset of cooler months as the year transitions into winter. Although May experiences less sunlight compared to its predecessors—January through April, which all boast over 280 hours—this trend is part of a natural decline that begins late in the autumn season. While May's sunshine hours are lower, they still set the stage for the vibrant colors of winter, contrasting beautifully with the striking landscapes of the region. As the year progresses into the later months, sunshine hours begin to rebound, peaking dramatically in November and December, with an impressive 359 to 372 hours respectively. This cyclical dance of sunlight beautifully underscores the rhythm of the seasons in this captivating Argentine locale.
May in La Rioja, Argentina, offers a promising chance of sunshine, with a 69% likelihood of clear skies. This marks a steady increase from the preceding months, particularly April’s 67%, hinting at a trend of brighter days as autumn progresses. Following May, June continues this trajectory with a slightly higher 70% chance of sun. This upward trend from April to June suggests that outdoor activities in May are likely to be enjoyed under pleasant conditions, making it a wonderful time to experience the region's natural beauty. As we look further into the year, La Rioja shows a remarkable upswing in sunny weather, particularly in the heart of summer, reaching a peak of 93% in August.
In La Rioja, Argentina, the daylight duration experiences a captivating ebb and flow throughout the year. Starting off strong in January and February with a generous 13 hours of sunlight, the days gradually shorten as March ushers in 12 hours, followed by 11 hours in April. A noticeable change occurs in May, where daylight dips to 10 hours, signaling the approach of winter. This consistent 10-hour threshold is maintained through June and July, creating a sense of stability during the cold months. By August, daylight begins its slow resurgence, climbing back to 11 hours, and steadily increasing to 13 hours by November, just in time for summer's return in December. This cyclical pattern highlights the rhythmic transition between the vibrant energy of long summer days and the more subdued, cozy atmosphere of winter, capturing the essence of La Rioja’s seasonal charm.
In La Rioja, Argentina, May typically presents a mild and gentle breeze, with an average wind speed of 2.2 m/s (5 mph). This subtle uplift in wind compared to the preceding months creates a refreshing atmosphere, ideal for outdoor activities and enjoying nature's beauty. Notably, this marks a slight increase from April's winds, showcasing the area's subtle shift towards a breezier environment as the seasons change. As the year progresses, a trend emerges with wind speeds gradually rising through the late spring and into fall, peaking at 2.7 m/s (6 mph) in September and November. This consistency reveals an underlying rhythm in La Rioja’s climate, where the cool breezes become a cherished companion amidst the region’s vibrant landscape.
Weather in La Rioja varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in La Rioja, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present contrasting weather patterns. In May, temperatures have a minimum of 2°C (36°F) and an average of 15°C (60°F), reaching a maximum of 28°C (83°F), with relatively low precipitation at 23 mm (0.9 in) across 5 days and high humidity at 82%. In contrast, January boasts much warmer temperatures, with minimums of 15°C (58°F), averages of 27°C (82°F), and highs soaring up to 41°C (107°F). Precipitation in January is more significant, measuring at 71 mm (2.8 in) over 8 days, but the humidity is lower at 63%. For more specifics on January conditions, you can check La Rioja weather in January.
May and February present distinctly different weather patterns. In May, temperatures range from a mild minimum of 2°C (36°F) to a comfortable average of 15°C (60°F), peaking at 28°C (83°F), with an average humidity of 82%. Precipitation is relatively low at 23 mm (0.9 in), occurring over about 5 days. In contrast, February experiences much warmer temperatures, with minimums around 14°C (57°F), an average of 25°C (78°F), and maximums soaring up to 40°C (104°F). Additionally, February sees higher rainfall at 72 mm (2.9 in) over 8 days, accompanied by lower humidity at 66%. For more details on February weather, you can check this link: La Rioja weather in February.
In comparing the weather of May and March, May presents a more moderate climate with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 28°C (83°F) and an average of 15°C (60°F). The month experiences relatively low precipitation of 23 mm (0.9 in) over 5 days, combined with a higher humidity rate of 82%. In contrast, March tends to be much warmer, with temperatures soaring between 10°C (51°F) and 38°C (100°F) and an average of 23°C (74°F). However, March also sees significantly more rainfall, totaling 73 mm (2.9 in) spread over 8 days, and a lower humidity level of 68%. For a more detailed look at March weather, visit La Rioja weather in March.
In comparing the weather of April and May, we can see some notable differences. April experiences higher average temperatures, ranging from a minimum of 7°C (45°F) to a maximum of 34°C (93°F), while May is cooler, with temperatures fluctuating between 2°C (36°F) and 28°C (83°F). Despite April’s warmth, it also brings more precipitation, totaling 33 mm (1.3 in) over six days, compared to May’s 23 mm (0.9 in) over five days. Both months have similar levels of humidity, with April at 83% and May slightly lower at 82%. For more detailed information on April weather, you can visit La Rioja weather in April.
May and June present notable differences in weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (83°F), with an average of 15°C (60°F). The month experiences moderate precipitation of 23 mm (0.9 in) over about 5 days, coupled with high humidity levels around 82%. In contrast, June sees cooler temperatures, with a minimum of -1°C (31°F), an average of 11°C (52°F), and a maximum of 24°C (76°F). This month is drier, with only 11 mm (0.4 in) of precipitation over just 2 days, and slightly lower humidity at 72%. Overall, June is characterized by cooler and drier conditions compared to the warmer and wetter May. For more details, check out La Rioja weather in June.
May and July present distinct weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (83°F), with an average temperature of 15°C (60°F). The month sees relatively high humidity at 82% and experiences around 23 mm (0.9 in) of precipitation over five days. In contrast, July features cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 25°C (78°F), leading to a lower average of 11°C (51°F). Additionally, July has significantly less humidity at 57% and only records 5 mm (0.2 in) of precipitation over just one day. For more detailed information, you can visit La Rioja weather in July.
In May, the weather is characterized by a wider temperature range, with minimums dropping to 2°C (36°F) and maximums reaching up to 28°C (83°F), resulting in an average of 15°C (60°F). This month experiences more humidity at 82% and has some precipitation, totaling 23 mm (0.9 in) across about 5 days. In contrast, August sees a narrower temperature span, with a minimum of 0°C (33°F) and a maximum of 35°C (95°F), while the average temperature is slightly lower at 14°C (58°F). Notably, August is much drier, receiving only 2 mm (0.1 in) of precipitation over 0 days and a significantly lower humidity level of 42%. For further details on the weather in La Rioja during August, check out La Rioja weather in August.
In May, the weather features cooler temperatures, with averages around 15°C (60°F) and a maximum of 28°C (83°F), while September offers a slightly warmer experience with an average of 18°C (65°F) and a maximum reaching 38°C (100°F). Both months see minimal precipitation, with May receiving 23 mm across 5 days, compared to September's 20 mm over just 3 days. Additionally, May has higher humidity at 82%, whereas September enjoys a much drier atmosphere with humidity levels around 51%. For more details on September weather, you can visit La Rioja weather in September.
May and October present contrasting weather conditions. In May, temperatures range from a chilly 2°C (36°F) at night to a comfortable average of 15°C (60°F) during the day, occasionally reaching up to 28°C (83°F). This month is characterized by higher humidity at 82% and relatively low precipitation of 23 mm (0.9 in) over five days. In comparison, October sees a warmer temperature spectrum with minimums around 7°C (45°F) and averages rising to 22°C (72°F), peaking at a striking 40°C (104°F). Although October has a slightly higher total precipitation of 34 mm (1.3 in) over the same number of rainy days, its humidity is significantly lower at 47%. For a more detailed look at October weather, check out La Rioja weather in October.
May and November present notably different weather patterns. In May, temperatures range from a cool minimum of 2°C (36°F) to a comfortable average of 15°C (60°F), peaking at a warm 28°C (83°F). This month experiences relatively low precipitation of 23 mm (0.9 in) over 5 days and high humidity at 82%. In contrast, November brings much warmer conditions with a minimum temperature of 11°C (52°F) and an average of 25°C (77°F), soaring up to a high of 41°C (106°F). Precipitation in November is higher, totaling 46 mm (1.8 in) over 6 days, but the humidity is lower at 58%. For more detailed insights on November weather, you can check out La Rioja weather in November.
May and December exhibit notable contrasts in weather conditions. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 28°C (83°F), with an average of 15°C (60°F). The month sees relatively low precipitation at 23 mm (0.9 in) over about five days, coupled with high humidity of 82%. In contrast, December experiences significantly warmer temperatures, with a minimum of 12°C (54°F), an average of 27°C (80°F), and a maximum soaring to 42°C (108°F). It also has more precipitation, totaling 77 mm (3.0 in) across seven days, but the humidity is lower at 61%. For more details on the weather specifics in December, check out La Rioja weather in December.
As May unfolds in La Rioja, the weather presents a captivating transition, with refreshing temperatures typically ranging from cool to pleasantly warm days. Unlike the scorching heat of the summer months, May offers a more moderate average temperature that invites outdoor activities, while still bearing a hint of crispness in the evenings. The humidity tends to linger, almost creating a cozy atmosphere, but the expected precipitation remains relatively low, with only a few rainy days to refresh the landscape. This combination makes May a unique time to experience the beauty and charm of La Rioja without the sweltering heat. For a deeper dive into the climatic nuances of this region, explore La Rioja Climate.