Last updated: January 18, 2025
Rotuma, Fiji, experiences a tropical rainforest climate classified as Am under the Köppen-Geiger system. The island's temperatures remain consistently warm, with a minimum of 25°C (77°F) in October, an average of 27°C (81°F) throughout the year, and a peak of 30°C (86°F) in April. This delightful climate, characterized by high humidity and plentiful rainfall, supports a rich variety of flora and fauna, making Rotuma a unique ecological haven within the South Pacific.
In Rotuma, Fiji, temperature patterns display a remarkable consistency throughout the year, with minimums typically hovering around 25°C (78°F), creating a warm tropical atmosphere. Both January and February maintain an average of 27°C (82°F), complemented by maximum temperatures peaking at 30°C (86°F). As the months progress into March and April, a slight increase is observed, with April marking the highest average of 28°C (82°F). From May through October, temperatures stabilize, maintaining a similar average of 27°C (81°F) and maximums around 29°C (85°F), before slightly cooling off in August and September. The climatic consistency is evident, underscoring Rotuma’s status as a perpetually warm island paradise.
In Ahau, temperatures range from a minimum of 25°C (77°F) in October to a maximum of 30°C (86°F) in April, offering a warm and pleasant climate throughout the year. For more detailed information, visit monthly temperatures in Ahau.
Rotuma, Fiji, experiences significant seasonal variations in precipitation, characterized by a pronounced wet season typically seen from January to April. January begins the year with 328 mm (12.9 in) of rainfall over 22 days, while February peaks dramatically at 493 mm (19.4 in) across 26 days, delineating it as the wettest month. The rainfall gradually decreases in March and April, with recorded totals of 268 mm (10.5 in) and 290 mm (11.4 in), respectively, before heading into the drier months of May and June, which see averages of 261 mm (10.3 in) and 206 mm (8.1 in).
As the calendar turns towards mid-year, the precipitation levels continue to decline, with July and August experiencing the lowest rainfall of 202 mm (7.9 in) and 175 mm (6.9 in), respectively. However, the trend shifts again as September brings a slight increase with 227 mm (8.9 in), leading into October with 249 mm (9.8 in). The month of November sees a resurgence in rainfall with 369 mm (14.5 in) before the year concludes in December with 414 mm (16.3 in), making it one of the wettest months. Overall, Rotuma's weather exhibits a rich hydrological cycle, vital for its lush tropical environment and biodiversity.
In Rotuma, Fiji, sunshine duration reveals a fascinating seasonal trend characterized by a gradual increase from the cooler months into the warmer summer season. January starts the year with 230 hours of sunlight, which ebbs slightly in February to 213 hours. However, as the island moves into March, there is a noticeable shift, with sunshine hours rising to 288 hours. This upward trend continues throughout April and May, where the averages are 261 hours and 273 hours, respectively, indicating a steady approach towards the sunniest period of the year.
The true zenith of sunshine occurs in October, where Rotuma basks under the sun for an impressive 300 hours. Following this peak, the duration starts to decrease slightly leading into November and December, but remains relatively high, recording 268 hours and 282 hours, respectively. Notably, the consistent availability of sunlight during the drier months contributes significantly to the island's vibrant ecosystem, offering an inviting climate for both residents and visitors alike. This seasonal variability illustrates how Rotuma experiences a balanced tropical climate, with ample sunshine fueling the lush landscapes and rich biodiversity that the island is known for.
The UV Index in Rotuma, Fiji, illustrates a consistent pattern of extreme solar radiation exposure throughout the year, with January through March reporting a peak UV Index of 16. This extreme rating necessitates caution, with an essential burn time of merely 10 minutes before skin damage can occur. As the year progresses into April, the UV Index slightly decreases to 15 but remains in the extreme category, while May experiences a further drop to 12. Notably, even during this reduction, the burn time stays at 10 minutes, emphasizing the persistent intensity of sunlight.
From June onward, there are slight fluctuations in the UV Index, with values dropping to 9 (very high) in June, allowing for a longer burn time of 15 minutes. However, the index climbs again to 11 in July and continues to hover around 12 in August, indicating sustained high levels of UV radiation. The autumn months see a return to an extreme category, with the UV Index reaching 14 in September and fluctuating between 15 from October to December. This consistent prevalence of high UV levels underscores the importance of sun protection for both residents and visitors in Rotuma, particularly during peak sunshine hours.
UV Risk Categories
In Rotuma, Fiji, daylight duration exhibits a remarkable consistency throughout the year, typically ranging from 11 to 12 hours each day. The beginning of the year, encompassing January through March, offers a steady 12 hours of daylight, ideal for enjoying the island's stunning natural beauty and outdoor activities. As April approaches, there is a slight reduction in daylight hours to 11 hours, a trend that continues through the mid-year months of May, June, July, and August, creating a stable but slightly shorter day length during this period.
However, as the calendar transitions back to September, daylight duration begins to increase once more, returning to 12 hours by the end of the year in October. November also retains this daylight length, which seamlessly extends into December. This cyclical pattern reinforces Rotuma’s tropical climate, allowing for ample opportunities to bask in the sun and appreciate the vibrant environment throughout the year while maintaining a relatively uniform experience of daylight across seasons.
Ahau, Fiji experiences a tropical climate characterized by warm temperatures and significant rainfall throughout the year. Average monthly temperatures hover around 27°C (82°F), with a consistent minimum of 25°C (78°F) and maximums peaking at 30°C (86°F) during the warmest months. January and February receive the highest precipitation, exceeding 400 mm, while drier months like August and July see around 175 mm. The sunshine is plentiful, particularly in October, with approximately 300 hours, providing a bright contrast to the wetter periods. For more detailed information, visit Ahau climate.
In conclusion, Rotuma, Fiji, presents a unique climate characterized by tropical warmth, consistent temperatures, and remarkable sunshine. With significant rainfall during the wet season and a steady presence of UV radiation, residents and visitors are encouraged to embrace sun safety while enjoying the island’s natural beauty. The relatively stable daylight duration throughout the year enhances outdoor experiences, fostering a vibrant and accessible environment. This interplay of climatic features not only supports the diverse ecosystems of Rotuma but also makes the island an attractive destination for tourists seeking both adventure and tranquility amid stunning landscapes.