Last updated: January 18, 2025
Aileu, Timor-Leste, is classified under the Koppen-Geiger climate class Aw, characterized by a distinct tropical savanna climate. The region experiences a minimum temperature of 13°C (56°F) in July, reflecting its cooler season, while the average annual temperature hovers around 23°C (73°F). The maximum temperature peaks at 33°C (92°F) in October, marking the warmest period of the year. This combination of temperatures underscores Aileu's climate variability and highlights its overall tropical nature, making it an area of interest for climate studies.
Aileu, Timor-Leste, exhibits a distinct seasonal temperature pattern throughout the year, with warm conditions prevailing. The coolest months are from June to August, where minimum temperatures fall to 13°C (56°F) and average around 21-22°C (71-72°F), while maximums reach up to 31°C (87°F). As the year progresses into September and October, a gradual warming trend is observed, peaking in October with maximum temperatures of 33°C (92°F) and average temperatures around 25°C (77°F). The transition to the rainy season is marked by increased humidity and slightly cooler averages from November to December, where temperatures stabilize between 19°C (66°F) as the minimum and 32°C (89°F) as the maximum. Overall, Aileu's climate showcases marked variations influenced by seasonal shifts, characterized by a mix of cooler dry periods followed by warmer and wetter months.
Aileu experiences a varied climate throughout the year, with a minimum temperature of 13°C (56°F) in July and rising to a maximum of 33°C (92°F) in October. For more detailed information on monthly temperatures, visit monthly temperatures in Aileu.
Aileu, Timor-Leste, experiences a pronounced wet season from January to March, characterized by substantial precipitation levels. January and February contribute significant rainfall, averaging 312 mm (12.3 in) and 308 mm (12.1 in) respectively, with March peaking at 398 mm (15.7 in). These months are marked by frequent rainfall days, with March alone recording 29 rainy days. As the wet season progresses, however, precipitation begins to decline dramatically, with April seeing a noticeable drop to 167 mm (6.6 in), and May reducing further to 89 mm (3.5 in).
As the dry season settles in from June to August, Aileu witnesses a significant decrease in precipitation, reaching a low of just 9 mm (0.4 in) in August, with only 2 rainy days recorded. This relatively dry period extends into early September, before again rising to 11 mm (0.4 in) in the latter part of that month. Precipitation totals rise again in November, with 201 mm (7.9 in) recorded over 21 days, and December returns to heavier rainfall with 349 mm (13.7 in) and 30 rainy days, fully reinstating the patterns of the wet season. Overall, Aileu’s precipitation patterns showcase a clear divide between wet and dry seasons, significantly influencing the region's climate and ecological dynamics.
In Aileu, Timor-Leste, sunshine duration showcases a clear seasonal pattern that reflects the transition from the wetter to drier months. Starting the year with 225 hours of sunlight in January, there is a steady increase as the months progress, culminating in significant peaks during the drier season. February sees an increase to 266 hours, followed by March at 277 hours, and April reaching 290 hours. By May, sunshine hours further increase to 298 hours, indicating a trend toward longer, sunnier days as the region approaches its peak dry season.
The period from June to October marks the most sunlit months, with sunshine durations consistently exceeding 290 hours. Notably, October shines the brightest, offering an impressive 328 hours, making it the peak month for sunlight in Aileu. This period of ample sunshine coincides with the dry season, illustrating the correlation between reduced rainfall and increased sunlight. As the year concludes, sunshine durations remain high, with 309 hours in November and 296 hours in December, reaffirming the trend of extended daylight in the dry months. Overall, Aileu’s sunshine patterns not only emphasize the region's climatic shifts but also highlight the abundant sunlight that accompanies its dry season.
The UV Index in Aileu, Timor-Leste, presents a consistent and concerning trend throughout the year, reflecting the region's high exposure to ultraviolet radiation. From January to March, the UV Index remains at a striking 16, classified as extreme, which indicates that unprotected skin can burn in as little as 10 minutes of direct sunlight. This level of UV exposure continues into April, where it slightly decreases to 15 but still maintains an extreme category. The criticality remains high during these months, signaling the need for effective sun protection measures for both residents and visitors engaging in outdoor activities.
As the year progresses, while the UV Index shows some fluctuations, it remains predominantly within the extreme range. From May to July, it ranges from 11 to 12, signaling a slight decrease yet still warranting caution. Notably, September and October experience another surge back to 16, indicative of peak UV exposure as the dry season sets in. The index stays elevated throughout November and December at 15, highlighting that even towards the end of the year, UV risk remains significant. Thus, the data underscores the importance of sun safety practices year-round in Aileu, as residents and visitors alike face potential health risks from prolonged sun exposure.
UV Risk Categories
In Aileu, Timor-Leste, daylight duration displays a remarkable consistency throughout the year, with most months offering around 12 hours of sunlight. This consistency is particularly evident from January to March, where daylight remains steady at 12 hours, providing ample time for outdoor activities and agriculture. As the region transitions into April through August, daylight hours decrease slightly to 11 hours, marking the only significant dip in sunlight. This period characterizes the transition toward the drier season, yet the fewer daylight hours do not severely impact the overall brightness, thanks to high UV exposure.
As the year nears its end, daylight duration rebounds, returning to 12 hours from September to December, reinstating the longer days typical of the preceding months. The consistent availability of daylight across the seasons contributes to Aileu's favorable climate for various activities, from farming to tourism. The return to 12 hours of daylight in the latter months ensures that daily routines remain largely unaffected by seasonal changes, while also highlighting the region's stable equatorial characteristics. This consistent daylight duration enhances both the ecological and social dynamics of Aileu, making it a region of interest for those studying tropical climates.
Aileu, Timor-Leste experiences a tropical climate characterized by warm temperatures and significant seasonal rainfall. Average temperatures range from about 21°C (71°F) in July to 25°C (77°F) in October, with maximums peaking at 33°C (92°F) in October and November. The wet season spans from December to March, with January being the wettest month, receiving 312 mm (12.3 in) of rain, while June to August sees much less precipitation, with July receiving only 22 mm (0.9 in). Despite the heavy rains, Aileu enjoys ample sunshine, particularly from July to October, offering between 306 to 328 hours of sunshine per month. For more details, visit Aileu climate.
In conclusion, Aileu, Timor-Leste, exemplifies a unique blend of climatic and environmental characteristics that shape its ecological landscape and influence daily life. With a pronounced tropical savanna climate, the region experiences marked seasonal variations in temperature, precipitation, sunshine duration, and UV exposure. The long daylight hours coupled with the seasonal abundance of sunlight provide a supportive environment for agriculture and outdoor activities, while the extreme UV Index underscores the importance of sun protection measures. Understanding these climatic patterns is essential for residents and visitors alike, as it fosters greater awareness of the region's environmental dynamics and the necessary precautions to take under varying conditions. Overall, Aileu stands as a vibrant testament to the complexities of tropical climates and their direct impact on human and ecological interactions.