Last updated: January 18, 2025
Namu Atoll, located in the Marshall Islands, is characterized by a tropical rainforest climate as per the Koppen-Geiger classification (Af). The island experiences a temperature range that promotes a consistently warm environment throughout the year, with a minimum temperature of 25°C (77°F) in December and an average temperature of 27°C (81°F). The hottest month is October, when temperatures can reach a maximum of 30°C (86°F). This climatic stability not only influences the local ecosystem but also plays a crucial role in the cultural and economic activities of its inhabitants.
The temperature patterns in Namu Atoll, Marshall Islands, reflect a stable tropical climate throughout the year, characterized by minimal seasonal variation. Monthly minimum temperatures consistently hover around 25°C (78°F), while average temperatures remain steady at 27°C (81°F). Maximum temperatures are relatively uniform, peaking at 29°C (84-86°F) during most months, with a slight increase to 30°C (86°F) in October. A notable trend occurs in late autumn as temperatures tend to shift, with November and December averages moving slightly lower to 82°F (28°C); however, this decrease is marginal and does not disrupt the overall warm climate. Thus, Namu Atoll experiences a tropical warmth that supports its lush ecosystems and vibrant cultures year-round.
Loen experiences a warm climate, with December temperatures dipping to a minimum of 25°C (77°F) and reaching a maximum of 30°C (86°F) in October. For more detailed insights into the monthly temperatures, you can visit monthly temperatures in Loen.
Namu Atoll experiences a pronounced rainy season, with precipitation levels exhibiting significant variability throughout the year. January begins the year with 149 mm (5.9 in) of rain, gradually increasing to 154 mm (6.1 in) in February. The rainfall peaks in the subsequent months, reaching 225 mm (8.9 in) in April, followed by a dramatic rise to 287 mm (11.3 in) in May. June and July witness slightly lower amounts, averaging around 241 mm (9.5 in) and 228 mm (9.0 in), respectively, before resuming the upward trend in August at 244 mm (9.6 in) as the wet season intensifies.
The peak precipitation period occurs from September to November, where both rainfall and the number of rainy days increase significantly. September sees 301 mm (11.9 in), followed closely by October with 299 mm (11.8 in). November is particularly noteworthy, recording the highest monthly total of 315 mm (12.4 in), sustaining 28 rainy days. December experiences a slight decrease to 235 mm (9.2 in), concluding the year with a robust rainfall pattern. This distribution contributes to the region's lush ecosystem and underscores the importance of seasonal rainfall for local agriculture and water resources.
Namu Atoll enjoys a relatively consistent yet notable pattern of sunshine duration throughout the year, with hours peaking during the late spring and summer months. Starting from 231 hours in January, sunlight hours gradually increase as the year progresses, reaching an impressive 296 hours in March. April and May maintain strong totals of 280 hours and 276 hours, respectively, as the island transitions into the sunnier months. The peak sunshine duration occurs from July to August, with maximum hours recorded at 298 hours and 301 hours, illustrating that this period not only offers abundant sunshine but also supports a vibrant outdoor lifestyle for residents and visitors alike.
As the year advances towards autumn, sunshine hours begin to decline slightly, yet remain significant. From September onward, sunlight totals drop to 280 hours in September and further decrease to 254 hours in November, marking the onset of the less sunlit season. December sees a modest uptick to 275 hours, reflecting the island's persistent warm climate. Overall, the sunshine duration pattern highlights Namu Atoll's tropical advantages, offering residents and ecosystems a balanced blend of warmth and light, vital for the lush environment characteristic of the region.
Namu Atoll, Marshall Islands, is characterized by an extreme UV Index throughout the year, making sun safety a crucial consideration for both residents and visitors. The UV Index peaks in March and April at 16, indicating exceptionally high levels of ultraviolet radiation. The exposure category remains classified as extreme, with a rapid burn time of just 10 minutes, emphasizing the need for protective measures such as sunscreen, clothing, and shade during peak sun hours. Even during the less intense months, such as November and December, the UV Index hovers around 11 to 12, still representing significant risk for skin damage if proper precautions are not taken.
The consistent high UV Index across all months underscores Namu Atoll’s tropical climate, where sunlight intensity remains strong year-round. February and August each record a UV Index of 14, while January and the summer months see slightly lower but still extreme values of 13. Notably, the UV Index does not drop dramatically even in the late year, confirming that sun protection is essential irrespective of the season. For individuals enjoying the lush landscapes of Namu Atoll, understanding and mitigating UV exposure is vital to ensure a safe and enjoyable outdoor experience.
UV Risk Categories
Namu Atoll enjoys a relatively consistent daylight duration throughout the year, typical of its equatorial location. From January to February, the days extend to 11 hours, offering ample light for various outdoor activities. As spring approaches, March marks a slight increase to 12 hours, a duration that remains stable from April through September. This consistency allows residents and visitors to engage in sun-soaked adventures without significant seasonal interruptions, benefiting from longer daylight hours during these periods.
As autumn sets in, daylight duration begins to taper off once again, with October, November, and December reverting to 11 hours of daylight. This cyclical pattern indicates a stable climate where drastic changes in sunlight hours are minimal. The uniformity in daylight duration throughout the year not only fosters a predictable rhythm for daily life on the atoll but also supports its lush ecosystems that thrive under the constant exposure to natural light.
Loen, Marshall Islands, experiences a consistently warm tropical climate with average temperatures ranging from 27°C (81°F) throughout the year. The region sees significant rainfall, particularly in the late spring and early winter months, peaking at 315 mm (12.4 in) in November. Sunshine is abundant, particularly from March to August, with over 290 hours of sunshine in several months. This unique climate supports lush vegetation and vibrant ecosystems. For more detailed information, visit Loen climate.
In conclusion, Namu Atoll's climatic and environmental characteristics, including temperature, precipitation, sunshine duration, UV Index, and daylight hours, collectively create a unique tropical ecosystem that supports a vibrant community and rich biodiversity. The consistently warm temperatures, coupled with a pronounced rainy season, ensure the lushness of its landscapes. Meanwhile, extended sunshine hours and a high UV Index highlight the region's need for sun protection, reflecting its tropical nature. The predictable daylight duration further enhances daily life on the atoll, allowing residents and visitors to engage fully with the abundant natural beauty that surrounds them. Understanding these climatic patterns is essential for promoting sustainable living and preserving the delicate balance of this enchanting paradise in the Marshall Islands.