Last updated: January 18, 2025
Atafu, an atoll in Tokelau, is characterized by a tropical rainforest climate as per the Köppen-Geiger classification (Af). The region experiences consistently warm temperatures throughout the year, with a minimum of 25°C (77°F) in April, an average temperature of 28°C (82°F), and peaking at 30°C (86°F) in December. This stable thermal regime, coupled with high humidity levels, fosters a rich biodiversity, making Atafu a unique environment within the Pacific island landscape.
Temperature patterns in Atafu, Tokelau, exhibit a notable consistency throughout the year, characterized by warm and stable climatic conditions. Monthly minimum temperatures hover around 25°C (77°F to 78°F), while average highs generally range from 27°C (81°F) to 30°C (86°F). The warmest months occur from November to March, where maximum temperatures frequently reach 30°C (86°F), accompanied by an average of around 28°C (82°F). As the year progresses into the cooler months of April to October, average temperatures slightly decline, settling at 27°C (81°F) during the late winter months, yet still maintain a tropical warmth. Overall, the climate remains predominantly warm and humid, reflecting the characteristics typical of a tropical rainforest environment.
Atafu Village experiences a range of temperatures throughout the year, with April featuring a minimum of 25°C (77°F) and December reaching a maximum of 30°C (86°F). This variation is indicative of the tropical climate prevalent in the region, making it an appealing destination for visitors seeking warm weather. For more detailed information, refer to the monthly temperatures in Atafu Village here.
Atafu, Tokelau experiences a significant amount of precipitation throughout the year, with a marked peak typically occurring in February, when average rainfall reaches 350 mm (13.8 in) over 24 days. The wet season is prominent from November to April, delivering consistent rains that contribute to the lush tropical environment. January and April also see substantial rainfall, measuring 203 mm (8.0 in) and 250 mm (9.8 in), respectively, which reinforces the region's wet climate during these months.
As the year progresses towards the drier months, precipitation amounts gradually decline. Notably, July experiences the least rainfall with 122 mm (4.8 in) over 24 days, indicating a brief respite from the heavy rains. Even during the drier months, such as June and August, the precipitation remains noteworthy at around 190 mm (7.5 in) and 168 mm (6.6 in) respectively. This pattern of significant annual rainfall supports a vibrant ecosystem in Atafu, illustrating the dominance of tropical weather influences in the region.
Atafu, Tokelau showcases a distinctive pattern in sunshine duration throughout the year, with hours of sunlight exhibiting a steady rise during the transition from winter to summer. The year begins with 234 hours of sunshine in January, demonstrating a solid, though moderate, amount of sunlight. As the months progress, a notable increase is observed, particularly in March when the island basks in 309 hours. This trend of growing sunshine continues into the late spring and early summer months, peaking in October with a remarkable 312 hours, indicating the height of the sunniest season.
In contrast, the late summer and early autumn months retain a generous amount of sunlight but show a slight decline from their peak. November maintains a strong 306 hours, while December follows closely with 297 hours. However, the period from February to June remains particularly noteworthy, as sunshine hours hover consistently in the upper 200s, illustrating Atafu's tendency for bright and sunny days. Overall, the sunshine trends reflect a vibrant climate, fostering a warm and inviting atmosphere for both residents and visitors alike.
Atafu, Tokelau experiences consistently high UV Index levels, reflecting its tropical climate and proximity to the equator. Throughout the year, the UV Index remains in the extreme category for the majority of months, with values peaking at 16 in both February and March. This elevated UV radiation necessitates caution, as the recommended burn time for unprotected skin is a mere 10 minutes, underscoring the need for effective sun protection measures during these periods. The UV Index gradually decreases in the late spring and summer months, with May and June recording 12 and 11, respectively, though remain firmly in the extreme range.
As the year progresses into late summer and fall, the UV Index remains elevated but begins a gradual decline. July marks the shift to a very high category at 10, with a slightly longer recommended burn time of 15 minutes, offering a brief reprieve in intensity. However, the UV Index bounces back to extreme levels in August, September, and throughout the remainder of the year, sustaining values between 14 and 15. This persistent exposure highlights the importance of year-round sun safety for residents and visitors in Atafu, making preventive measures against UV radiation imperative.
UV Risk Categories
In Atafu, Tokelau, daylight duration exhibits a striking consistency throughout the year, typically averaging around 12 hours daily from January to March. This stable level of daylight is characteristic of tropical regions near the equator, where variations in daylight length are minimal. However, as the year transitions into April, May, and June, daylight duration slightly decreases to 11 hours, marking a brief period of reduced sunlight as the region experiences subtle seasonal changes.
As the latter part of the year approaches, daylight duration returns to its previous balance of 12 hours per day from September onward. This reestablishment mirrors the annual cycle, allowing for ample time to engage in outdoor activities and enjoy the vibrant natural environment of the island. Overall, Atafu's daylight patterns contribute to a climate conducive to growth and life, providing a consistent framework for both the local populace and the ecosystem.
Atafu Village in Tokelau enjoys a tropical climate characterized by warm temperatures year-round, with average highs around 28°C (82°F) and minimal variation in lows, consistently around 25°C (78°F). Rainfall is most abundant during February, reaching up to 350 mm (13.8 in), while July tends to be the driest month with just 122 mm (4.8 in). The village also experiences significant sunshine, particularly in March and October, which together yield over 300 hours of sunlight. For further details on the local climate, visit Atafu Village climate.
In conclusion, Atafu, Tokelau presents a remarkable climate characterized by consistently warm temperatures, high precipitation, abundant sunshine, and significant UV exposure throughout the year. The tropical rainforest climate fosters a lush ecosystem, influenced by substantial rainfall and steady daylight hours that support both the environment and the community's way of life. Seasonal variations in sunshine and UV Index highlight the importance of sun safety, particularly during peak months, while stable daylight duration ensures that residents and visitors can enjoy the island's natural beauty year-round. Collectively, these climatic features illustrate Atafu's unique position in the Pacific, offering a vibrant and welcoming landscape for all who experience it.