Last updated: August 21, 2025
January in San Rafael, Argentina offers a vibrant mix of warmth and occasional rain, making it a dynamic time to explore this picturesque region. With maximum temperatures soaring to 41°C (106°F) and an average of 26°C (79°F), visitors can expect plenty of sun and heat. However, nights can be refreshing, dipping to a minimum of 9°C (48°F). Rainfall is light yet present, totaling around 30 mm (1.2 in) over 6 days, resulting in a humidity level of 42% that enhances the summer atmosphere without being overwhelmingly damp. Whether you're tasting local wines or enjoying outdoor activities, January delivers an enticing blend of summer splendor in San Rafael.
In San Rafael, Argentina, January is characterized by warm, summery temperatures, presenting a contrast of minimums around 9°C (48°F) and soaring max values that can reach up to 41°C (106°F). With an average temperature of 26°C (79°F), the month stands out as one of the hottest, setting the stage for vibrant outdoor activities. As the season transitions to February, there’s a slight dip in average temperature to 24°C (75°F), while maxes remain high at 40°C (104°F), maintaining the warmth. This trend of high temperatures gradually shifts towards cooler months, with March marking the beginning of this decline, as nights get chillier with minimums dropping to 4°C (39°F). As summer fades, January's peak heat gives way to the milder conditions of autumn, showcasing how the climate in San Rafael shifts dramatically yet smoothly from the sweltering heights of January to the cooler embrace of March.
In January, San Rafael experiences a moderate start to the year with 30 mm (1.2 in) of precipitation spread over 6 days. This sets the tone for the month as the region transitions from the dry conditions of the previous months. Compared to February’s 52 mm (2.0 in) - the wettest month - January’s rainfall is relatively light, hinting at a seasonal increase in precipitation as the summer heat intensifies. As the year progresses, the rainfall displays a variable pattern, peaking in late spring and early summer, before tapering off in the colder months. This trend highlights San Rafael's shift from drier to wetter conditions, providing valuable insights for both residents and agriculture alike.
In January, San Rafael experiences a pleasant humidity level of 42%, making it one of the drier months of the year. As the summer transitions into autumn, humidity gradually increases, peaking at 75% in May—the most humid month. Following May, humidity levels begin a slight decline, stabilizing around the mid-70s through July and August before dipping again in the fall months. November sees a notable decrease to 44%, while December closes the year with a refreshing 40%. This rhythmic fluctuation in humidity not only shapes the local climate but also enhances the natural beauty of San Rafael, offering a vibrant palette throughout the seasons.
In January, San Rafael basks in a blistering UV Index of 15, categorizing it as an extreme exposure month with a rapid burn time of just 10 minutes. This intensity extends into February with a UV Index of 13, maintaining the extreme category. As summer transitions into autumn, March sees a slight decline to an Index of 11, while still demanding caution. By April, the Index decreases further to 8, marking a very high exposure level for sunbathers. The trend continues in May and June, where UV levels drop to 5 and 4, respectively, transitioning into a more moderate risk. However, as the year progresses into the higher months, UV levels spike again, reaching 14 in November and back to 15 in December. For residents and visitors alike, understanding these fluctuations is essential for sun safety. For more detailed insights, check out the San Rafael UV Index.
UV Risk Categories
In January, San Rafael basks in a radiant 317 hours of sunshine, setting the tone for a summer filled with warmth and light. As the months progress, the sun seems to shine even brighter, reaching a peak in November with an impressive 372 hours. This trend of increasing sunlight continues into December, where the city enjoys a dazzling 389 hours. The sunniest months are marked by a vibrant atmosphere, inviting locals and visitors alike to revel in outdoor activities. However, the cooler winter months—including June and July—see a dip, with sunlight dropping to 250 and 269 hours, respectively. Despite this seasonal variation, the overall trajectory reveals San Rafael's charm under the sun, steadily brightening as the year unfolds.
In San Rafael, Argentina, January boasts a delightful 71% chance of sunny weather, making it one of the sunniest months of the year. Following closely, February also enjoys ample sunshine at 68%, but the trend begins to shift as we move into March, where the likelihood drops to 59%. However, the warmer months of April and May see a resurgence in sunny days with 70% and 63% respectively. The summer peak returns in July, where an impressive 83% chance of sunshine brightens the days, setting a high bar that is maintained through August and September at 70% and 74%. As the year progresses into the spring and summer months, the sunshine keeps shining through, reaffirming San Rafael's reputation as a sunny getaway throughout the year.
In San Rafael, Argentina, January greets residents with a generous 14 hours of daylight, setting the tone for a vibrant summer. As the month of February rolls in, daylight hours gently wane to 13, signaling the gradual transition towards autumn. This trend continues, with March offering 12 hours, and April dipping further to 11 hours. By the time May arrives, daylight reaches a modest 10 hours, marking the onset of the colder months. Interestingly, June sees the shortest days with just 9 hours of light, before the patterns reverse in July and August, where daylight stabilizes at 10 hours. The cycle continues into September with 11 hours, then October and November increase to 12 and 13 hours, respectively. Finally, December wraps up the year with 14 hours of daylight once again, illustrating a rhythmic ebb and flow of sunshine that characterizes the seasons in this picturesque region.
In January, San Rafael enjoys a refreshing average wind speed of 3.7 m/s (8 mph), which sets the tone for a breezy summer month. This windier spell contrasts with the slower winds of February, settling at 2.7 m/s (6 mph), and signifies a trend towards gentler breezes as summer progresses. However, there's a slight uptick in March and throughout the fall months, where average speeds hover around 3.0-3.5 m/s (7-8 mph). Interestingly, as the year nears completion, average wind speeds remain relatively steady at around 3.3 m/s (7 mph) in December, maintaining a consistent and enjoyable climate. This gentle fluctuation showcases the region's delightful breezy characteristic, perfect for outdoor adventures throughout the year.
Weather in San Rafael varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Rafael, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures in San Rafael range from a minimum of 9°C (48°F) to a maximum of 41°C (106°F), with an average temperature of 26°C (79°F). The month sees about 30 mm (1.2 in) of precipitation over 6 days and boasts a humidity level of 42%. In contrast, February experiences slightly cooler average temperatures, peaking at 40°C (104°F) and averaging 24°C (75°F), while maintaining the same minimum of 9°C (49°F). Precipitation increases to 52 mm (2.0 in) over 6 days, and humidity rises to 46%. For a more detailed look at February's weather, you can refer to San Rafael weather in February.
In January, the weather is significantly warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 41°C (106°F), while March experiences cooler conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 38°C (100°F). January sees slightly more precipitation totaling 30 mm (1.2 in) over about 6 days, compared to March's 26 mm (1.0 in) over just 4 days. Additionally, humidity levels are lower in January at 42%, while March tends to be more humid at 58%. For a detailed look at the conditions, you can visit San Rafael weather in March.
In comparing the weather between January and April, we see notable differences in temperature and humidity. January boasts a warm average temperature of 26°C (79°F) and can reach highs of 41°C (106°F), while April experiences a cooler average of 17°C (63°F) with maximum temperatures of 34°C (94°F). January has relatively low humidity at 42%, but April's humidity rises significantly to 69%, contributing to a different feel in the air. Precipitation is slightly higher in April at 38 mm (1.5 inches) over 5 days, compared to January's 30 mm (1.2 inches) over 6 days. For more detailed insights, check out San Rafael weather in April.
In January, the weather is characterized by higher temperatures, with a minimum of 9°C (48°F) and an average maximum reaching a scorching 41°C (106°F). The humidity is relatively low at 42%, and the month generally sees about 30 mm (1.2 in) of precipitation over 6 days. In contrast, May presents a much cooler atmosphere, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 32°C (90°F), averaging only 12°C (54°F). This month experiences increased humidity at 75% and slightly higher precipitation, amounting to 39 mm (1.5 in) across just 4 days. For more insights on the weather in May, check out San Rafael weather in May.
In January, the weather in San Rafael is characterized by warm temperatures, with minimums around 9°C (48°F) and maximums reaching a scorching 41°C (106°F). This summer month experiences an average temperature of 26°C (79°F) and a relatively low humidity level of 42%, along with 30 mm (1.2 in) of precipitation over six days. In contrast, June brings a significant shift, with temperatures dropping to a minimum of -5°C (24°F) and a maximum of 25°C (77°F). The average temperature in June is only 8°C (47°F), accompanied by higher humidity at 72% and less precipitation at 16 mm (0.6 in) over just three days. For more details about the June weather, you can visit San Rafael weather in June.
The weather in January and July presents a stark contrast in San Rafael. January experiences significantly warmer temperatures, with averages soaring between a minimum of 9°C (48°F) and a maximum of 41°C (106°F), while July brings much cooler conditions, ranging from a chilling -3°C (26°F) to a pleasant maximum of 25°C (77°F). Additionally, January is relatively dry with 30 mm of precipitation spread over 6 days, whereas July sees a lower amount of 17 mm over just 2 days, resulting in higher humidity levels of 73% compared to January's 42%. For more detailed insights, you can check San Rafael weather in July.
In January, the weather is characterized by hot temperatures, with a minimum of 9°C (48°F), an average of 26°C (79°F), and a maximum reaching up to 41°C (106°F). This month experiences relatively low precipitation, totaling 30 mm (1.2 in) over approximately 6 days, and a humidity level of 42%. In contrast, August brings much cooler conditions, where the temperatures range from a minimum of -3°C (26°F) to a maximum of 33°C (92°F) with an average of 11°C (52°F). Precipitation is lighter at just 10 mm (0.4 in) over 2 days, while humidity rises significantly to 70%. For a more detailed look at August weather, you can check San Rafael weather in August.
January and September showcase a stark contrast in weather conditions. In January, temperatures soar with a minimum of 9°C (48°F) and can reach a scorching maximum of 41°C (106°F), along with an average temperature of 26°C (79°F). The month experiences moderate rainfall of 30 mm (1.2 in) across about 6 days, paired with a relatively low humidity level of 42%.
In contrast, September introduces a much cooler climate, with minimum temperatures dropping to -4°C (25°F), an average of 14°C (58°F), and a maximum of 33°C (91°F). Precipitation is lighter, totaling 21 mm (0.8 in) over roughly 4 days, and humidity increases to 59%. For more details, visit San Rafael weather in September.
When comparing the weather in January and October, there's a notable shift in temperature and humidity levels. January experiences higher temperatures, with an average of 26°C (79°F) and maximums reaching up to 41°C (106°F), while October sees much cooler averages of 17°C (64°F) and maximums of 38°C (101°F). Additionally, January has lower humidity at 42%, compared to October's 57%, which contributes to a colder feel in the latter month. Precipitation wise, January receives about 30 mm (1.2 in) over 6 days, while October has slightly more rain at 40 mm (1.6 in) over just 5 days. For further details, you can check San Rafael weather in October.
In January, the weather is typically hotter, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 41°C (106°F), making it one of the warmest months of the year. In contrast, November sees slightly cooler conditions, with temperatures averaging between 5°C (41°F) and 39°C (103°F). Additionally, January experiences lower precipitation levels at 30 mm (1.2 in) over about 6 days, while November has a higher total of 52 mm (2.1 in) spread across roughly 8 days, indicating a wetter month. Humidity levels are relatively similar, with January at 42% and November slightly higher at 44%. For more detailed insights into weather conditions, you can check San Rafael weather in November.
In January, the temperatures in San Rafael soar slightly higher than in December, with an average of 26°C (79°F) compared to December's 24°C (76°F). The maximum temperature peaks at 41°C (106°F) in January, just surpassing December's maximum of 40°C (105°F). January also sees slightly less precipitation, totaling 30 mm (1.2 in) over 6 days, while December experiences 45 mm (1.8 in) across 7 days. The humidity remains relatively comparable, with January at 42% and December at 40%. For more details, you can check San Rafael weather in December.
January in San Rafael brings a vibrant mix of warm temperatures and low humidity, setting it apart from the cooler months. With the mercury occasionally soaring up to 41°C, the warmth invites outdoor activities and exploration, while the average temperature maintains a pleasant 26°C. While the city does experience some rainfall—typically around 30 mm over about six days—the overall climate remains rather dry. This contrasts sharply with the chillier winter months, making January a prime time for those seeking to bask in the sunshine of this beautiful region. For more detailed insights on the year-round weather patterns, visit San Rafael Climate.