Last updated: January 18, 2025
Located in the picturesque Merizo, Guam, the climate is classified under the Köppen-Geiger classification as Af, indicative of a tropical rainforest environment. The region experiences consistently warm temperatures throughout the year, with a minimum of 25°C (77°F) in March, an average of 27°C (82°F), and peaking at a maximum of 30°C (86°F) in September. This stable thermal regime supports a vibrant ecosystem and offers year-round opportunities for outdoor activities amidst the lush landscapes.
In Merizo, Guam, temperature patterns exhibit remarkable stability throughout the year, characterized by minimal fluctuations. The region experiences a consistent minimum temperature of around 25°C (77°F), while average temperatures hover between 27°C (81°F) to 28°C (82°F) across the months. Seasonal variation is most noticeable in the maximum temperatures, which peak at 30°C (86°F) in September and August, providing a glimpse into the warmest period of the year. Notably, temperatures show slight increases during the late spring and summer months, particularly in May and June, before stabilizing again as the year transitions into the cooler winter months, where the maximums remain comfortably warm. Overall, Merizo’s climate offers a warm, tropical experience that invites year-round enjoyment.
Merizo Village experiences a tropical climate, with temperatures ranging from a minimum of 25°C (77°F) in March to a maximum of 30°C (86°F) in September. This consistent warmth throughout the year makes it an inviting destination for those who enjoy mild weather. For more detailed monthly temperatures, you can refer to monthly temperatures in Merizo Village.
Merizo, Guam experiences a distinct pattern of precipitation throughout the year, characterized by a wet season that reaches its peak during the summer months. January begins the year with a modest 63 mm (2.5 in) of rainfall, but as the months progress, precipitation increases substantially, culminating in 388 mm (15.3 in) in August. This period is marked by frequent rainfall, with July and August averaging around 30 and 29 rainy days, respectively, indicating a robust tropical climate where rain is common. The rainy season persists into September and October, with both months receiving substantial precipitation, albeit slightly less than the summer peak, at 369 mm (14.5 in) and 358 mm (14.1 in).
As the year advances toward the end, precipitation begins to taper off, leading to drier conditions in the cooler months. November sees a significant drop to 207 mm (8.1 in), followed by 115 mm (4.5 in) in December, as the region transitions to its drier season. Despite the lower totals, rain remains present, with December still averaging 22 rainy days. Overall, Merizo's precipitation pattern not only sustains lush vegetation but also plays a crucial role in the local ecosystem, showcasing the dynamic interplay between wet and dry periods in this tropical paradise.
In Merizo, Guam, sunshine duration exhibits a notable seasonal trend, steadily increasing from the winter months into summer. January kicks off the year with 233 hours of sunshine, gradually rising to 267 hours in February. As spring transitions into summer, sunshine hours peak in May, reaching a remarkable 335 hours. This period represents the sunniest time of the year, contributing to Merizo's reputation as a tropical paradise where outdoor activities thrive amidst radiant weather. March and April also showcase generous sunlight, with 316 hours and 314 hours, respectively, setting the stage for the lush, vibrant landscape that characterizes the summer months.
However, as summer progresses into late August and September, there is a noticeable dip in sunshine hours, with August delivering 267 hours and September dropping slightly to 260 hours. This decrease can be attributed to increased cloud cover and rainfall during these months, as the region experiences its wet season. October and November see a marginal recovery in sunshine duration, with 263 hours and 278 hours, respectively, highlighting a gradual return to clearer skies as the year nears its end. Overall, the sunny climate of Merizo not only underscores the beauty of its surroundings but also influences the lifestyle and ecology of this vibrant tropical location.
The UV Index in Merizo, Guam, underscores the region's exposure to intense ultraviolet radiation throughout the year, necessitating caution for outdoor activities. Starting in January, the UV Index quietly registers at 11, marking the beginning of an extreme exposure category that persists across the months. February sees a slight rise to 13, while March and April peak at 15, indicating that sun exposure can lead to skin damage in just 10 minutes without proper protection. This trend highlights the crucial need for sunscreen, protective clothing, and shade to safeguard against harmful UV rays during this time.
As the year progresses into the summer and fall months, the UV Index remains consistently high, fluctuating between 14 and 15 from June through September. The intensity of ultraviolet radiation showcases the tropical climate's nature, with 10 minutes of unprotected sun exposure continuing to pose a risk throughout these months. Even in November and December, the UV levels remain elevated at 12 and 11, respectively, suggesting that vigilance against UV exposure is essential year-round. Overall, those enjoying the sun's conviviality in Merizo should be mindful of the UV Index and make informed choices to protect their skin while reveling in the island's beauty.
UV Risk Categories
In Merizo, Guam, daylight duration exhibits a remarkable consistency throughout the year, reflecting the island's tropical location near the equator. During the first two months of the year, January and February receive 11 hours of daylight, setting a stable foundation for the months to come. As spring approaches in March, daylight extends slightly to 12 hours, continuing through April, May, and into the summer months, where the duration remains steady at 12 hours. This balance of light creates a conducive environment for outdoor activities and nurtures the island's rich flora and fauna.
As the year progresses into the fall months, daylight once again tapers to 11 hours in October, reflecting the subtle changes that occur as the year comes to a close. November and December maintain this shorter daylight pattern, with 11 hours persisting through the end of the year. This cyclical nature of daylight reinforces Merizo's tropical charm, allowing residents and visitors to enjoy the sun-drenched days that characterize island life. Overall, the consistency of daylight duration in Merizo contributes to its vibrant ecosystem and enhances the quality of life for all who experience its natural beauty.
Merizo Village, Guam, experiences a warm tropical climate characterized by consistently high temperatures ranging from 25°C (77°F) to 30°C (86°F) throughout the year. Rainfall is significant, especially from July to August, where monthly precipitation can exceed 300 mm (11.8 in), contributing to a wet season. Despite the rain, the village enjoys ample sunshine, particularly in the spring months with over 300 hours per month. For more detailed information, visit the Merizo Village climate.
In conclusion, Merizo, Guam, showcases a unique and harmonious climate that combines warm temperatures, abundant sunshine, and high UV exposure throughout the year, making it a tropical paradise for outdoor enthusiasts and nature lovers alike. The consistent daylight duration adds to the island's allure, allowing residents and visitors to engage with its breathtaking landscapes and vibrant ecosystems year-round. However, the extreme UV Index serves as a reminder to prioritize sun safety while enjoying the region's beauty. Overall, Merizo's climate not only enriches its natural environment but also fosters a lifestyle deeply connected to the sun, sea, and surrounding nature.