Last updated: January 18, 2025
The climate of Aysén, Chile, is characterized by its Köppen-Geiger climate classifications of Cfc (Marine West Coast Climate) and Csc (Mediterranean Climate). This region experiences a compelling temperature range, with winter lows plunging to a minimum of -20°C (-4°F) in June, while summer peaks can soar to a maximum of 32°C (90°F) in February. The annual average temperature settles around 7°C (44°F), showcasing Aysén's distinct seasonal contrasts and diverse weather patterns influenced by its unique geographical features.
Aysén, Chile, exhibits distinct seasonal temperature patterns that underline its varied climate. The summer months of January and February showcase relatively mild conditions, with average temperatures rising to 11°C (52°F) and 12°C (55°F), respectively, and maximum highs reaching up to 32°C (90°F). As autumn approaches in March and April, temperatures begin to dip, with averages falling to 10°C (51°F) and 8°C (46°F), while minimums drop into the negative range by early winter. The coldest period occurs in June and July, where temperatures plummet to -20°C (-4°F) and -15°C (6°F), respectively, indicating a harsh winter climate. By late spring and early summer, from October to December, the region gradually warms again, with average temperatures returning to 11°C (52°F) and max temperatures reaching 30°C (85°F), demonstrating Aysén's dynamic seasonal transitions.
Coyhaique experiences a diverse climate, with temperatures ranging from a minimum of -20°C (-4°F) in June to a maximum of 31°C (88°F) in February. This wide variation reflects the region's distinct seasons, making it a unique destination for those who appreciate significant temperature shifts throughout the year. For more detailed insights on the monthly temperatures in Coyhaique, visit monthly temperatures in Coyhaique.
The precipitation patterns in Aysén, Chile, reveal a distinct seasonal rhythm, with monthly totals peaking during the winter and early spring. January starts off relatively wet with 176 mm (6.9 in) of rain, but February sees a drop to 124 mm (4.9 in). However, as the seasons progress into March and April, precipitation begins to increase sharply, reaching 199 mm (7.8 in) and 249 mm (9.8 in), respectively. The late autumn months of May and June mark the climax of rainfall, with June alone accumulating 366 mm (14.4 in), making it the wettest month of the year.
Accompanying the precipitation data, the number of rainy days also reflects Aysén's climate characteristics, with 20 rainy days in June and July, which contribute to the significant monthly totals. From August through October, rainfall remains substantial, with ranges between 237 mm (9.3 in) and 315 mm (12.4 in), while November and December see some tapering off. The combination of high precipitation levels, particularly during winter and early spring, coupled with many rainy days, underscores Aysén's reputation as a region with a dynamic and varied hydrological cycle.
Aysén, Chile, experiences a clear seasonal variation in sunshine duration, reflecting the influence of its geographical location. The peak sunshine months are evident from December to February, with a remarkable 312 hours in December and 285 hours in February, highlighting the region’s vibrant summer days. This impressive span of sunshine gradually declines as autumn approaches, with April and May showing a significant drop to 183 hours and 145 hours, respectively. Notably, June and July, the heart of winter, witness the lowest sunshine totals, with only 128 hours and 133 hours, underscoring the stark contrast between the sunniest and darkest periods of the year.
As the year progresses towards spring, sunshine hours begin to rebound, with August recording a healthy 169 hours, followed by a gradual increase through September and October, reaching 202 hours and 251 hours. The steady rise in sunshine highlights the shift from the gloomy winter months to the more illuminated days of spring and summer. November serves as a transition month with 277 hours of sunshine, paving the way back to peak conditions in December. This cyclical pattern not only emphasizes Aysén's dynamic atmospheric conditions but also enhances its appeal as a destination for those seeking abundant sunlight during the summer months.
The UV Index in Aysén, Chile, exhibits significant seasonal variation, reflecting the region's changing exposure to solar radiation. During the peak summer months of January and February, the UV Index reaches extreme levels of 13 and 12, respectively, indicating a burn time of just 10 minutes. This underscores the need for sun protection during these months, as prolonged sun exposure can quickly lead to skin damage. March continues with a very high UV Index of 9, dropping burn time to 15 minutes but still necessitating caution. As autumn arrives, the UV Index decreases, with April and May exhibiting moderate levels of 6 and 4, allowing for longer exposure times before sunburn occurs.
As winter sets in, Aysén experiences a notable reduction in the UV Index, hitting a low of 2 in June, which translates to a safer burn time of 45 minutes. July and August see a slight increase to moderate levels of 3 and 5, suggesting that while sun strength is diminishing, caution is still warranted. The UV Index begins to rise again in September and October, reaching 7 and 9, respectively, indicating a return to higher sun exposure levels as spring approaches. Notably, November again peaks at 13, mirroring the extreme summer months, showcasing the cyclical nature of UV exposure throughout the year in Aysén. This trend emphasizes the importance of adjusting sun protection strategies seasonally to mitigate health risks associated with UV radiation.
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In Aysén, Chile, daylight duration reflects the striking seasonal contrasts typical of this southern region. During the height of summer in January, residents enjoy 15 hours of daylight, providing ample opportunity for outdoor activities and exploration. As February transitions into March, daylight begins to wane, dropping to 13 hours and then 12 hours, signaling the gradual onset of autumn. This decrease continues through April and May, where daylight dips to 10 hours and 9 hours, respectively, as the region prepares for the shorter, darker days of winter.
The winter months of June and July see the shortest daylight periods, with just 8 hours and 9 hours of light each day, creating a stark contrast to the summer's abundance. However, as spring approaches in August, daylight hours begin to increase once again, returning to 10 hours and slowly extending through September and October with 11 and 13 hours of daylight, respectively. By November and December, daylight peaks again at 14 and 15 hours, respectively, completing the seasonal cycle. This pattern highlights Aysén's dynamic daylight variations, inviting residents and visitors alike to adapt their activities in accordance with the changing length of daylight throughout the year.
Coyhaique, Chile experiences a diverse climate characterized by significant seasonal variations. In summer (December to February), temperatures peak around 31°C (88°F) in February, while winter (June to August) sees minimums dropping to -20°C (-4°F) in June. Precipitation is highest during the colder months, particularly in June with 218 mm (8.6 in), creating a wet environment. Despite the heavy rainfall, sunshine is abundant in the summer months, with December boasting 339 hours. For more detailed information, visit Coyhaique climate.
In conclusion, the climate of Aysén, Chile, is marked by its significant seasonal variability, which shapes temperature, precipitation, sunshine duration, UV Index, and daylight hours. The region experiences extreme temperatures during summer and severe cold in winter, with precipitation peaking in the colder months and showcasing a clear wet-dry seasonal pattern. Additionally, the abundant sunshine in the summer months enhances outdoor activities, while the UV Index warrants careful attention for sun safety. As daylight hours fluctuate dramatically throughout the year, Aysén presents a unique environment that not only highlights the beauty of its natural surroundings but also encourages residents and visitors to engage with its dynamic climate in varying ways. Understanding these climatic patterns is essential for navigating daily life and making the most of what Aysén has to offer throughout the seasons.