Last updated: August 21, 2025
In May, the charming town of San Martin, Argentina experiences a delightful blend of temperatures, with daily highs reaching up to 27°C (81°F) and cool nighttime lows dropping to 0°C (32°F). The average temperature remains a comfortable 13°C (56°F), perfect for exploring the picturesque landscapes. Despite an average precipitation of 17 mm (0.7 in) over just 2 days, the humidity levels hover around a pleasant 69%, creating a refreshing atmosphere ideal for outdoor activities. Visitors can enjoy the beauty of autumn in San Martin while reveling in its unique weather dynamics.
In May, temperatures in San Martin, Argentina begin to dip as autumn settles in. The month boasts a minimum temperature of 0°C (32°F), marking a noticeable drop from the more moderate conditions of previous months. The average temperature hovers around 13°C (56°F), providing a crisp, refreshing atmosphere ideal for outdoor activities. While daytime highs can reach a pleasant 27°C (81°F), the transition to colder evenings creates a cozy vibe, encouraging locals and visitors alike to enjoy warm drinks and comfortable wear. This month signals the start of cooler seasons, contrasting sharply with the summer highs experienced just a few months earlier.
In May, San Martin experiences a notable decline in rainfall, with only 17 mm (0.7 in) of precipitation recorded over just two days. This marks a shift from the more substantial rains of earlier months, such as January and February, when precipitation levels were significantly higher at 36 mm (1.4 in) and 39 mm (1.6 in), respectively. As spring progresses towards winter, the trend continues downward with a stark contrast to April's 20 mm (0.8 in). With June bringing an even lower average of 5 mm (0.2 in), it's clear that May signals the beginning of a dry spell in the region, preparing residents for the drier months to come.
In May, San Martin, Argentina, experiences a noticeable increase in humidity, reaching 69%—the highest level so far this year. This rise continues a pattern observed from April, where humidity climbed from 65%, reflecting the gradual transition into the wetter months. As the seasons progress, the trend reveals a steady increase from the relatively dry beginning of the year, with January's low of 40% giving way to increasingly humid conditions. The peak in May marks a shift, often bringing a lush vibrancy to the region as nature responds to the moisture in the air, while also setting the stage for the slightly cooler, albeit still humid, months ahead in June and July.
In May, San Martin, Argentina experiences a UV Index of 6, categorizing it as high with a burn time of 25 minutes—a notable shift from the peak of summer when values soared to 15 in January. This trend reflects a gradual decrease in UV exposure as autumn progresses, making May a more manageable month for outdoor activities compared to the extreme levels earlier in the year. However, sun safety remains essential, as even moderate levels can cause skin damage with prolonged exposure. For more details on UV levels and to plan your sun protection strategies, visit San Martin UV Index.
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In San Martin, Argentina, May brings a subtle shift as the hours of sunshine decrease to 267 hours, marking a transition into the cooler months. This decline follows a peak in late summer, with January basking in 311 hours and April holding strong at 276 hours. Despite the reduced daylight, May still captures the essence of autumn with its vibrant landscapes. As the year progresses, the sunshine hours gradually dip further into June and July, only to rebound in the spring months of August and beyond, where the skies cleared once again, revealing the warm, radiant glow of a South American sun. Notably, November and December shine the brightest, showcasing a remarkable resurgence, as the region prepares to embrace the warmth of summer once more.
In San Martin, Argentina, the month of May presents a 66% chance of sunny weather, reflecting a moderate likelihood of enjoying bright days. This slight dip from the 74% seen in April suggests that while spring blooms continue to grace the landscape, the onset of winter is beginning to temper the sunshine. Looking at the broader trends, May’s sunshine probability is lower than the summer peaks, such as July’s impressive 87% and August's 81%, but still holds its own against a backdrop of June’s 64%. As spring transitions to early winter, the weather in May manages to strike a balance, retaining a good potential for sunshine amidst the gradual shift toward cooler days.
In San Martin, Argentina, daylight duration follows a rhythmic ebb and flow throughout the year, showcasing a captivating seasonal pattern. The year kicks off with the longest days in January, bathing the landscape in 14 hours of sunlight. As summer transitions into autumn, daylight gradually diminishes, reaching its lowest point with just 10 hours in May. Interestingly, this decline is punctuated by a brief revival in July and August, which also enjoy 10 hours of light. As the year progresses, the days gradually lengthen again from September onward, culminating in a return to 14 hours by December. This cyclical dance of light not only highlights the beauty of changing seasons but also shapes the lifestyles and activities of those living in this vibrant region.
In May, San Martin experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), similar to the preceding month of April. This tranquil airflow marks a transition from the slightly brisk winds of earlier months, such as January with its 3.4 m/s, and the more robust 3.5 m/s gusts seen in September and October. As summer fades into winter, the wind speeds begin to stabilize, reflecting a characteristic calmness in the region. Overall, May's winds embody a soothing permanence, inviting both residents and visitors to enjoy the serene landscapes without the disruption of stronger gusts.
Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of May and January, notable differences emerge in temperature and precipitation. May sees a milder range, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 27°C (81°F) and an average of 13°C (56°F). This month experiences about 17 mm (0.7 in) of precipitation over just 2 days and maintains a higher humidity level of 69%. In contrast, January is considerably warmer, with temperatures spanning from a minimum of 10°C (49°F) to a scorching maximum of 42°C (107°F), averaging 27°C (82°F). This month also has more rainfall, totaling 36 mm (1.4 in) spread across 6 days, but with lower humidity at 40%. For a more detailed look at January weather specifics, you can visit San Martin weather in January.
In May, temperatures tend to be milder, ranging from a minimum of 0°C (32°F) to a maximum of 27°C (81°F), with an average of 13°C (56°F). The month experiences relatively low precipitation at 17 mm (0.7 in) over only 2 days, and humidity levels are higher at 69%. In contrast, February sees much warmer conditions, with temperatures varying from a minimum of 13°C (55°F) to a sweltering maximum of 41°C (107°F), averaging 25°C (78°F). February also has increased precipitation at 39 mm (1.6 in) over 7 days, but the humidity is lower at 46%. For more details about February weather, check out San Martin weather in February.
In comparing the weather in May and March, we notice significant differences in temperature and humidity. May experiences cooler temperatures, with a minimum of 0°C and an average of 13°C, while March boasts warmer temperatures, including a high of 38°C and an average of 23°C. Additionally, May has lower precipitation at 17 mm over just 2 days, compared to March, which receives 26 mm throughout 5 days. Humidity also varies, with May at 69% and March at a more comfortable 54%. For a more detailed look at March weather in the region, you can check out San Martin weather in March.
In comparing the weather of May and April, we observe notable differences in temperature and precipitation. May experiences a lower minimum temperature of 0°C (32°F) and a cooler average of 13°C (56°F), compared to April's minimum of 2°C (36°F) and average of 18°C (66°F). While April can reach a high of 34°C (93°F), May is milder with a maximum of 27°C (81°F). Precipitation is slightly less in May at 17 mm (0.7 in) over 2 days, while April has slightly more at 20 mm (0.8 in) over 3 days. Humidity levels are relatively similar, with May at 69% and April at 65%. For more detailed information on April weather, you can visit San Martin weather in April.
May and June exhibit notable differences in weather patterns. May tends to be warmer, with average temperatures ranging from a minimum of 0°C (32°F) to a maximum of 27°C (81°F), while June presents cooler conditions, with temperatures dropping to a minimum of -4°C (26°F) and an average high of 26°C (79°F). May also experiences more precipitation, with 17 mm (0.7 in) over 2 days, compared to June's lighter rainfall of just 5 mm (0.2 in) spread over 1 day. Additionally, humidity levels are slightly higher in May at 69%, compared to June's 64%. For a detailed look at June weather conditions in a specific area, visit San Martin weather in June.
In comparing the weather between May and July, May typically experiences a wider temperature range, with minimums around 0°C (32°F) and maximums reaching up to 27°C (81°F), leading to an average temperature of 13°C (56°F). It also sees more rainfall, with 17 mm (0.7 in) over 2 days and a humidity level of 69%. In contrast, July has cooler temperatures, with minimums dropping to -3°C (27°F) and maximums peaking at 23°C (74°F), resulting in a lower average of 8°C (47°F). Precipitation is minimal in July, with only 4 mm (0.2 in) falling over just one day and humidity at 65%. For a more detailed look at July's conditions, check out San Martin weather in July.
In comparing the weather between May and August, May typically features a milder range of temperatures, with a minimum of 0°C (32°F), an average of 13°C (56°F), and a maximum reaching 27°C (81°F). This month experiences about 17 mm (0.7 in) of precipitation over 2 days, contributing to a higher humidity level of 69%. In contrast, August showcases a slightly cooler climate with a minimum temperature of -2°C (28°F), an average of 12°C (54°F), and a maximum that can rise to 32°C (90°F). Remarkably, precipitation is minimal in August, totaling only 2 mm (0.1 in) over 0 days, which results in a lower humidity of 60%. For more detailed information, you can check out San Martin weather in August.
May and September present distinct weather patterns. In May, temperatures range from a chilly 0°C (32°F) to a pleasant max of 27°C (81°F), averaging around 13°C (56°F), accompanied by 17 mm of precipitation over just 2 days and a humidity level of 69%. Conversely, September experiences warmer conditions, with temperatures fluctuating from a low of -1°C (31°F) to a high of 36°C (97°F), averaging 16°C (62°F). Precipitation decreases significantly to only 6 mm over one day, and humidity drops to a more comfortable 51%. For a detailed look at September weather, you can check out San Martin weather in September.
May and October present distinct weather patterns, showcasing the transition from spring to autumn. In May, temperatures range from a cool 0°C (32°F) at night to a pleasant 27°C (81°F) during the day, with an average temperature of around 13°C (56°F). The month experiences about 17 mm (0.7 in) of precipitation over just 2 days, while humidity levels hover at 69%.
In contrast, October’s weather is warmer and more variable, with minimum temperatures starting at 2°C (35°F) and peaking at an impressive 39°C (103°F), averaging around 20°C (68°F). Precipitation is slightly less, totaling 13 mm (0.5 in) over 3 days, but with significantly lower humidity at 49%. This makes October a distinctly drier and warmer month compared to May. For more details on October's climate, refer to San Martin weather in October.
May and November showcase contrasting weather patterns. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 27°C (81°F), with an average of 13°C (56°F). This month experiences low precipitation at 17 mm (0.7 in) over just 2 days and a notable humidity level of 69%. By contrast, November brings significantly warmer temperatures, with a minimum of 9°C (48°F), an average of 24°C (75°F), and a peak of 40°C (105°F). Precipitation in November increases to 27 mm (1.1 in) spread over 5 days, while the humidity drops to a comfortable 44%. For more information, check out San Martin weather in November.
May and December present contrasting weather patterns. In May, temperatures range from a chilly minimum of 0°C (32°F) to a pleasant maximum of 27°C (81°F), with an average of 13°C (56°F). The month sees a modest 17 mm (0.7 in) of precipitation over just 2 days, accompanied by relatively high humidity at 69%.
In stark contrast, December experiences much warmer temperatures, with a minimum of 12°C (54°F) and a scorching maximum of 42°C (108°F), averaging 26°C (80°F). This month receives 24 mm (1.0 in) of precipitation across 5 days, and the humidity drops significantly to 35%. For more detailed information on the conditions in December, you can visit San Martin weather in December.
May in San Martin is a delightful transition from the warm, sun-soaked days of summer to the crispness of autumn. With maximum temperatures reaching a comfortable 27°C and a cooler average of 13°C, this month offers a refreshing balance that invites outdoor activities without the sweltering heat of peak summer. The low humidity levels of 69% make the days pleasant, while occasional rain—just 2 days of light precipitation totaling 17 mm—ensures that the landscape remains lush and vibrant. As this month gently nudges the region toward winter, it presents a unique charm that sets it apart from the preceding months. To explore more about the climate in San Martin, visit San Martin Climate.