Last updated: August 21, 2025
January in San Martin, Argentina presents a tapestry of warm summer weather, characterized by a maximum temperature soaring to 42°C (107°F) and an average of 27°C (82°F), making it perfect for those who relish the heat. Nights cool down to a comfortable minimum of 10°C (49°F), providing a pleasant reprieve from daytime warmth. Rainfall is moderate, with 36 mm (1.4 in) of precipitation spread over 6 days, adding a touch of humidity at around 40%. This dynamic weather creates an inviting atmosphere for visitors to soak in the vibrant summer landscape while enjoying an array of outdoor activities.
In January, San Martín, Argentina, experiences a vibrant blend of summer warmth, with temperatures ranging from a refreshing 10°C (49°F) at night to a scorching 42°C (107°F) during the day, accompanied by an average of 27°C (82°F). This trend of high temperatures is emblematic of the region's summer season, with January often peaking at some of the year's hottest days. Following closely, February continues the warmth with only a slight drop in the average temperature, while nighttime lows shift to a milder 13°C (55°F). As the months march toward autumn, the mercury begins to decline more significantly, emphasizing the transitional nature of San Martín's climate. This rhythm reveals not just the peak summer heat but also the gradual cooling that invites more comfortable temperatures as the seasons change.
In January, San Martin, Argentina experiences a moderate precipitation level of 36 mm (1.4 in), typically spread over 6 days of the month. This rainfall marks the beginning of the year with a balance between dry and wet days, setting the tone for the following months. February sees a slight increase in precipitation to 39 mm (1.6 in), with a bit more consistency as rain falls on 7 days. However, as the season progresses into March, rainfall decreases significantly to 26 mm (1.0 in) over just 5 days, hinting at a transition to drier conditions. The trend continues into April and May, where rainfall drops further, ultimately leading to the driest months of June and July, with only 5 mm (0.2 in) and 4 mm (0.2 in) respectively. This pattern reflects a clear seasonal shift in San Martin, showcasing the region’s characteristic dry spell after a relatively wetter start to the year.
In San Martin, Argentina, January marks the beginning of a humidity trend that gradually rises as the year progresses. Kicking off the season at a comfortable 40%, the humidity begins its steady climb, peaking at 69% in May. As the months unfold, an increase is evident, with February and March recording 46% and 54% respectively, leading into the more humid months of late spring and early summer. June and July maintain a consistent level around 64%-65%, while the numbers gradually decline towards the year’s end. Interestingly, December wraps up the year with the lowest humidity at 35%, creating a refreshing contrast to the sweltering summer months ahead. This progressive shift in humidity highlights the unique climatic pattern of San Martin, showcasing a vibrant seasonal cycle.
In January, San Martin, Argentina, experiences an exceptionally high UV Index of 15, classified as extreme, with a mere 10 minutes of sun exposure enough to cause skin burns. This intensity marks the peak of the summer season, setting the tone for the following month, February, which maintains a similarly extreme UV Index of 14. As the summer transitions into early autumn, the UV levels begin to drop, with March showing a UV Index of 12, yet still within the extreme category. April introduces a slight reprieve with a UV Index of 8, categorized as very high, allowing for 15 minutes of safer exposure. In stark contrast, the UV Index gradually diminishes in the later months, with May and June showing values of 6 and 4 respectively, indicating a high to moderate risk. As spring approaches, September and October see a resurgence of extreme levels, yet still, the overall trend indicates a significant reduction in UV intensity from the sweltering heights of January. For more information on UV ratings throughout the year, check out the San Martin UV Index.
UV Risk Categories
In January, San Martin basks in a remarkable 311 hours of sunshine, setting the tone for an idyllic summer. As the month progresses into February, the sun shines even brighter, peaking at 324 hours, which continues to attract visitors eager to enjoy the outdoors. This trend persists into March, with a slight increase to 327 hours, before the daylight hours begin to taper off in April with 276 hours. From mid-year onwards, the sunshine gradually diminishes, reaching its lowest in June at 263 hours. However, as August approaches, there's a resurgence, restoring the glow to 314 hours, which grows along with the anticipation of springtime. By December, the year culminates with abundant light at 391 hours, highlighting San Martin’s vibrant climate and making each month a delightful experience for those who seek warmth under the Argentine sun.
In San Martin, Argentina, January boasts a 71% chance of sunny weather, making it one of the brighter months of the year. This trend suggests a delightful start to summer, with a well-deserved break from the cooler months that precede it. As the season progresses, February and March see a slight dip, with sunny days dropping to 65% and 60%, respectively. However, the sun returns in force as autumn approaches, with April's chances rising to 74%. Notably, the likelihood of sunshine peaks in the colder months of July and August, reaching an impressive 87% and 81%. This fascinating pattern highlights the region's unique climate, where warmth and sunlight prevail, especially in mid-year, ensuring that outdoor adventures are often met with beautiful skies.
In January, San Martin basks in an impressive 14 hours of daylight, making it the sunniest month of the year. As the summer progresses into February, daylight decreases slightly to 13 hours, signaling the beginning of a gradual transition toward shorter days. By March, the daylight further narrows to 12 hours, as autumn's embrace takes hold. As the year advances, daylight continues to dwindle, reaching its minimum of just 9 hours in June. However, the trend reverses come July, where daylight begins to stabilize at 10 hours, and gradually increases once more, peaking at 14 hours again in December. This cyclical nature of daylight in San Martin not only marks the seasons but also reflects the vibrant changes in the region's atmosphere throughout the year.
In January, San Martin, Argentina experiences a refreshing average wind speed of 3.4 m/s (8 mph), setting a breezy tone for the summer month. This level of wind is among the higher averages for the year, making it a perfect time for outdoor activities and enjoying the vibrant atmosphere. As the season transitions into February, the winds soften slightly to 2.6 m/s (6 mph), continuing the trend of milder breezes in the approaching autumn months. Interestingly, while the winds fluctuate, San Martin often enjoys peak breeze periods in early fall and late spring, with September and October registering averages of 3.5 m/s (8 mph) and 3.6 m/s (8 mph) respectively. As winter approaches, the gentle winds linger around 2.3 to 2.4 m/s (5 mph), providing a serene contrast to the lively summer gusts. Overall, January's wind serves as a reminder of the region's dynamic climate, where summer's playful breezes gradually give way to calmer days.
Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is characterized by warmer temperatures, with a minimum of 10°C (49°F), an average of 27°C (82°F), and a maximum reaching up to 42°C (107°F). The month experiences an average precipitation of 36 mm (1.4 in) over about 6 days, with humidity levels around 40%. In contrast, February shows slightly cooler weather, with a minimum temperature of 13°C (55°F) and an average of 25°C (78°F), while still peaking at 41°C (107°F). Rainfall increases to 39 mm (1.6 in), occurring over 7 days, and humidity rises to 46%. For more insights on February weather in San Martin, you can visit San Martin weather in February.
In January, the weather is characterized by higher temperatures, with a minimum of 10°C (49°F) and an average of 27°C (82°F), peaking at a scorching 42°C (107°F). The month sees some rainfall, accumulating 36 mm (1.4 in) over approximately six days, while humidity averages around 40%. In contrast, March experiences slightly cooler conditions, with a minimum temperature of 7°C (44°F) and an average of 23°C (73°F), with a maximum of 38°C (101°F). Precipitation decreases to 26 mm (1.0 in) over five days, but humidity rises to 54%. For more details on March weather, you can check San Martin weather in March.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 10°C (49°F) to a scorching maximum of 42°C (107°F) and an average of 27°C (82°F). This month also sees relatively low humidity at 40% and more rainfall, totaling 36 mm (1.4 in) over about six days. In contrast, April experiences much cooler temperatures, with a minimum of 2°C (36°F), an average of 18°C (66°F), and a maximum of 34°C (93°F). Precipitation decreases to 20 mm (0.8 in) over just three days, but the humidity rises to a higher 65%. For more detailed insights into the April weather, you can check out San Martin weather in April.
In January, the weather is characterized by high temperatures, with minimums around 10°C (49°F) and maximums reaching up to 42°C (107°F), making it a hot month overall with an average temperature of 27°C (82°F). Despite this heat, January experiences relatively low precipitation at 36 mm (1.4 in) over 6 days, with humidity levels at 40%. In stark contrast, May presents a much cooler climate, with minimum temperatures dropping to 0°C (32°F) and an average of 13°C (56°F), peaking at 27°C (81°F). Additionally, May has significantly less precipitation, totaling just 17 mm (0.7 in) over 2 days, and a noticeable increase in humidity at 69%. This shift from the heat of January to the cooler and more humid May is quite apparent in the local climate. For more details, you can check San Martin weather in May.
In January, temperatures in San Martin soar with a minimum of 10°C (49°F) and an average of 27°C (82°F), reaching a high of 42°C (107°F). The month experiences relatively low precipitation of 36 mm (1.4 in) over six days, with humidity hovering around 40%. In stark contrast, June brings a much cooler climate, with temperatures ranging from a chilly minimum of -4°C (26°F) to an average of 9°C (48°F) and a maximum of 26°C (79°F). Precipitation decreases significantly to just 5 mm (0.2 in) over a single day, and humidity rises to 64%. For more details on June weather, check San Martin weather in June.
January and July present strikingly different weather conditions. In January, temperatures soar, with minimums around 10°C (49°F) and maximums reaching up to 42°C (107°F), accompanied by a relatively low humidity of 40%, making it a hot summer month with some precipitation occurring on about 6 days. In contrast, July brings much cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 23°C (74°F). The average temperature hovers around a chilly 8°C (47°F), and the increased humidity of 65% contributes to a different feel altogether. Notably, July experiences significantly less precipitation, averaging just 4 mm (0.2 in) over one day. For a detailed look at weather conditions during this month, check out San Martin weather in July.
January and August present stark contrasts in weather conditions. In January, temperatures soar with a minimum of 10°C (49°F) and can peak at a scorching 42°C (107°F), resulting in an average of 27°C (82°F). This month also sees some precipitation, totaling 36 mm (1.4 in) over about 6 days, alongside relatively low humidity at 40%. In contrast, August remains much cooler, with minimum temperatures dropping to -2°C (28°F) and a maximum of 32°C (90°F), yielding an average temperature of just 12°C (54°F). Interestingly, August experiences minimal precipitation at only 2 mm (0.1 in) and no rainy days, while humidity increases to a higher level of 60%. For more detailed insights on the weather during this month, you can check San Martin weather in August.
In January, the weather is characterized by high temperatures, ranging from a minimum of 10°C (49°F) to a scorching maximum of 42°C (107°F), with an average of 27°C (82°F). This month also sees a moderate level of precipitation at 36 mm (1.4 in) over about 6 days, alongside relatively low humidity at 40%. In contrast, September presents a much cooler climate with temperatures dipping to a minimum of -1°C (31°F) and peaking at 36°C (97°F), averaging only 16°C (62°F). The month is notably drier, with just 6 mm (0.2 in) of precipitation falling over a single day, and humidity levels are higher at 51%. For a detailed look at weather patterns during September, you can visit San Martin weather in September.
In January, the weather is characterized by significantly higher temperatures, with a minimum of 10°C (49°F) and an average of 27°C (82°F), peaking at a scorching maximum of 42°C (107°F). This month also experiences more rainfall, totaling 36 mm (1.4 in) across about six days, with humidity at 40%. In contrast, October brings much cooler temperatures, ranging from a minimum of 2°C (35°F) to an average of 20°C (68°F) and a maximum of 39°C (103°F). The precipitation drops to 13 mm (0.5 in) over just three days, with humidity slightly higher at 49%. For more detailed information, you can explore San Martin weather in October.
In January, the weather tends to be hotter, with maximum temperatures reaching up to 42°C (107°F) compared to November's peak of 40°C (105°F). January's average temperature is also higher, at 27°C (82°F) versus November's 24°C (75°F). Both months experience relatively low precipitation, with January receiving 36 mm (1.4 in) over 6 days and November reporting 27 mm (1.1 in) over 5 days. Humidity levels are slightly lower in January at 40%, while November sees a modest increase to 44%. For more details on November weather, visit San Martin weather in November.
In comparing the weather between January and December, we see some notable differences. January experiences slightly higher average temperatures, with a minimum of 10°C (49°F) and a maximum of 42°C (107°F), while December's minimum is a bit warmer at 12°C (54°F) and has a slightly lower average of 26°C (80°F). Both months reach the same maximum temperature of 42°C (108°F), but January has more precipitation at 36 mm (1.4 in) over about six days, compared to December's 24 mm (1.0 in) over five days. Additionally, January has a higher humidity level of 40%, while December maintains a comfortable 35%. For a detailed look at December's climate, check out San Martin weather in December.
In January, San Martin stands out with its sweltering temperatures, peaking at an impressive 42°C (107°F), making it one of the hottest months of the year. The average temperature sits comfortably around 27°C (82°F), providing a warm respite from the cooler winter months. This month also experiences a modest amount of precipitation, with around 36 mm (1.4 in) falling over just 6 days, allowing for occasional relief from the heat. With humidity hovering at 40%, the air feels relatively dry compared to the more humid summer months that follow. For those curious about the overall climate trends throughout the year, explore more at San Martin Climate.