Last updated: January 18, 2025
Tucuman, Argentina, exhibits a multifaceted climate characterized by its Köppen-Geiger classifications of Cwa, Cwb, and BSk. This diverse climatic framework results in temperature extremes ranging from a chilling minimum of -14°C (6°F) in July to a sweltering maximum of 42°C (108°F) in November. The annual average temperature settles at a comfortable 18°C (65°F), indicating a region that experiences significant seasonal variation. The interplay of these factors contributes to Tucuman's unique climatic identity, shaping its ecological and agricultural landscapes.
In Tucuman, Argentina, temperature patterns reveal a striking seasonal variation, characterized by a shift from cool winter months to hot summers. January and February showcase the peak of summer, with maximum temperatures soaring to 41°C (106°F) and 37°C (99°F), respectively, while average daytime temperatures maintain a warm 24°C (75°F) and 22°C (72°F). As autumn approaches in March and April, temperatures gradually decline, with March still reaching highs of 37°C (99°F) but transitioning to cooler averages of 21°C (69°F) in March and 18°C (65°F) in April. The winter months of May through July exhibit the most significant temperature drop, highlighted by July's chilling minimum of -14°C (6°F) and a meager average of 11°C (52°F). However, as spring returns in August and extends into October, temperatures show a gradual upward trend again, with warm days re-emerging, culminating in November, where averages once more soar to 22°C (71°F) amidst temperatures reaching 42°C (108°F). This cyclical pattern underscores Tucuman's diverse climate, providing a unique backdrop for its rich ecosystem and agricultural practices.
Tafi del Valle experiences a distinct temperature range, with minimums dropping to -14°C (6°F) in July and peaking at 27°C (81°F) in October, making it a cooler destination throughout the year. In contrast, San Miguel de Tucuman sees a wider temperature variation, where it can drop to -2°C (29°F) in June and soar to a maximum of 38°C (100°F) in December, highlighting its hotter climate. For more detailed climate information, visit monthly temperatures in Tafi del Valle and monthly temperatures in San Miguel de Tucuman.
Tucuman, Argentina experiences a pronounced seasonal pattern in precipitation, with the highest rainfall concentrated during the summer months. January and February stand out as the wettest months, accumulating 221 mm (8.7 in) and 250 mm (9.8 in) of rainfall, respectively, often distributed over 17 days each month. As summer wanes into March and April, precipitation begins to decrease, with March receiving 196 mm (7.7 in) over 18 days and April seeing a further decline to 165 mm (6.5 in) across 16 days. This pattern highlights how the region's climate transitions from a summer deluge to more moderate rain levels in the autumn.
Moving into the cooler winter and early spring months, Tucuman experiences significantly reduced precipitation. June records just 41 mm (1.6 in) over 6 days, while July and August bring minimal rain, with 23 mm (0.9 in) and 17 mm (0.7 in), respectively, indicating a dry spell. A slight increase is noted in September with 46 mm (1.8 in), followed by moderate rains in October (98 mm (3.9 in)) and November (153 mm (6.0 in)) as the region gears up for the return of summer. Throughout the year, the distinct rainy periods not only shape the local landscape but also influence agricultural practices, reflecting the interplay between climate dynamics and human activity.
Tucuman, Argentina, experiences a notable trend in sunshine duration that peaks in the summer months, offering residents and visitors ample sunlight throughout the year. January begins the year with a solid 256 hours, but it is February that outshines them all, boasting 271 hours of sunshine, closely followed by March with 269 hours. This trio of months forms the sunniest part of Tucuman’s year, ensuring vibrant days ideal for outdoor activities and agriculture. As autumn unfolds in April and May, the sunshine hours level off at 237 hours each month, signaling a gradual transition as the region moves towards winter.
As winter gives way to spring, sunshine availability begins to rise again, peaking towards the end of the year. June sees 257 hours, but the standout months are clearly July (272 hours) and August (304 hours), indicating that the winter skies often provide bright, sunny days despite cooler temperatures. This momentum continues into the latter months, with September receiving 282 hours and October reaching 293 hours. Notably, December closes out the year with a flourish, accumulating 324 hours of sunshine, making it the sunniest month in Tucuman. This annual progression illustrates how the variation in sunshine duration supports the region's rich agricultural landscape while enhancing the quality of life for its inhabitants.
Tucuman, Argentina, experiences significant variations in UV Index levels throughout the year, with peak values occurring during the summer months. January, February, and March all report dangerously high UV Index values, reaching 16, 15, and 14, respectively, all categorized as "extreme." With a burn time of only 10 minutes, these months require diligent sun protection to avoid harmful effects from UV radiation. Even as autumn arrives in April, the UV Index remains high at 11, indicating that sun exposure risks remain prevalent during this transitional period.
As the region shifts into winter, there is a noticeable decrease in the UV Index, with May registering 8 and June dropping further to 6. Although June and July see moderate UV levels categorized as "high," with burn times extended to 25 minutes, some caution is still warranted. By late winter and early spring, as temperatures begin to rise, August sees a rebound with an index of 8, followed by September's return to 11, and the approach of summer heralds yet another increase. Notably, October and November once again reach extreme levels of 14 and 16, making sun safety a year-round consideration in Tucuman, especially for those spending time outdoors.
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In Tucuman, Argentina, daylight duration exhibits a characteristic seasonal rhythm, reflecting the region's latitude and time of year. January stands out as the month with the longest daylight, offering approximately 13 hours of sunlight, which encourages outdoor activities and agricultural tasks. As the summer sun wanes into February and March, daylight remains steady at 12 hours, providing ample time for sunlit adventures. By April, a noticeable shift occurs as daylight decreases to 11 hours, signaling the onset of autumn and the gradual approach of winter.
The trend toward shorter days continues through May, June, and July, where daylight persists at around 10 hours each month, creating a more subdued light environment. As winter gives way to spring, there is a slight increase in daylight duration in August and September, both returning to 11 hours. October sees a resurgence to 12 hours, while November and December once again feature 13 hours of daylight, reflecting the cyclical nature of daylight hours in Tucuman. This oscillation not only influences daily routines but also highlights the region's diverse climatic conditions throughout the year.
San Miguel de Tucuman, Argentina experiences a subtropical climate characterized by warm temperatures and significant rainfall, particularly in the summer months. January sees average highs of 37°C (99°F) and substantial precipitation at 232 mm (9.1 in), while July is cooler with average temperatures around 11°C (52°F) and minimal rainfall of just 27 mm (1.1 in). The region enjoys a good amount of sunshine, peaking at 324 hours in December. For more detailed climate information, visit San Miguel de Tucuman climate.
Tafi del Valle, Argentina, experiences a marked variation in temperature throughout the year, with January being the warmest month, peaking at 25°C (77°F), while July sees the lowest temperatures, dropping to -14°C (6°F). The region has a distinct wet season, with January recording the highest precipitation at 331 mm (13.0 in), gradually decreasing towards the drier months of June and July. Sunshine hours are plentiful, especially in the second half of the year, peaking in August with 317 hours. For more detailed information, visit Tafi del Valle climate.
In conclusion, Tucuman, Argentina, presents a dynamic climate characterized by significant seasonal variations in temperature, precipitation, sunshine duration, UV index, and daylight hours. The region's hot summers, with extreme temperatures and ample rainfall, support rich biodiversity and agricultural productivity, while the cooler months offer a contrasting climate that affects both local ecosystems and human activities. The nuances of sunlight exposure and UV index throughout the year underscore the importance of sun safety and the need for adaptive measures to mitigate health risks. Overall, Tucuman’s climate presents both challenges and opportunities, shaping the social, economic, and environmental landscape of this vibrant Argentine province.