Pohnpei Climate

Last updated: January 18, 2025

Pohnpei, Micronesia, exhibits a tropical rainforest climate classified under the Köppen-Geiger system as Af. This region experiences consistently warm temperatures throughout the year, with a minimum of 24°C (76°F) recorded in May, an average of 27°C (82°F), and a peak maximum of 30°C (87°F) observed in October. Pohnpei's climate not only supports its lush, diverse ecosystems but also influences the lifestyle and culture of its inhabitants, making it a fascinating study in tropical meteorology.

Pohnpei temperature by month

In Pohnpei, Micronesia, temperature patterns demonstrate a consistently warm tropical climate characterized by minimal fluctuations throughout the year. Monthly low temperatures hover around 24°C to 25°C (76°F to 78°F), with a slight dip in May, while average temperatures remain stable at approximately 27°C (82°F). The maximum temperatures typically reach 29°C to 30°C (85°F to 87°F), peaking in October and showing a subtle decline during the mid-year months of July and August. Despite these minor variations, the overall climate retains its humid and tropical essence, creating a stable environment that fosters its rich biodiversity and vibrant local culture.

Monthly Temperatures in Pohnpei, Micronesia

The chart illustrates Pohnpei's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec818181818181818182828181
Data source: Pohnpei temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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The average of daily temperatures (24 hours) calculated across all days in the month.

In Nukuoro, temperatures range from a minimum of 25°C (77°F) in June to a maximum of 30°C (87°F) in September monthly temperatures in Nukuoro. In Kolonia Town and Palikir - National Government Center, the climate remains consistent with minimums of 25°C (77°F) and maximums of 30°C (86°F) during October monthly temperatures in Kolonia Town and monthly temperatures in Palikir - National Government Center.

Precipitation Patterns in Pohnpei

Pohnpei, Micronesia, is characterized by substantial rainfall throughout the year, contributing to its lush tropical landscape. Monthly precipitation averages reveal a pronounced wet season, with March leading the way at 346 mm (13.6 in), followed closely by May at 389 mm (15.3 in), the wettest month. January and April also witness significant rainfall, with totals of 256 mm (10.1 in) and 293 mm (11.5 in) respectively. This persistent precipitation fosters a vibrant ecosystem, evidenced by high rainfall averages of 250 mm or more (9.8 in) across most months, illustrating the region's humid subtropical climate.

The frequency of rainy days further emphasizes Pohnpei's tropical characteristics, with many months featuring upwards of 25 days marked by precipitation. The peak of rainy days occurs in May, with 28 days of rainfall, indicating nearly constant wet conditions. Notably, the month of March sees the highest total rainfall, despite having 26 rainy days, highlighting the intensity of precipitation during this period. This extensive rainfall not only plays a critical role in the local environment but also influences agricultural practices and the daily lives of the island's inhabitants.

Monthly Average Precipitation in Pohnpei, Micronesia

The average monthly precipitation in Pohnpei, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec256187346293389305313238254252297350
Data source: Pohnpei precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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Sunshine Duration in Pohnpei

In Pohnpei, Micronesia, sunshine duration exhibits a clear seasonal trend, with increasing hours of sunlight as the year progresses from winter into summer. January marks the start of the year with 222 hours of sunshine, gradually increasing to 262 hours in February and peaking in the late summer months, particularly in August, where it reaches an impressive 303 hours. This increase highlights the transition toward drier conditions, which typically accompany the warmer months. The spring and summer periods bring not only heightened temperatures but also extended opportunities for sunlight, making these months particularly vibrant for both the environment and local activities.

As the year winds down, sunshine hours experience a gentle decline, with notable fluctuations notably during the autumn months. September and October see substantial sunshine hours at 282 and 286 hours respectively, but November drops to 260 hours, signaling the approach of the wetter season. December follows closely with 273 hours, showcasing the lingering effects of the rainy season. Overall, the steadiness of sunshine in Pohnpei reflects its tropical climate, where longer days during the summer provide a stark contrast to shorter days in the latter part of the year, further influencing local rhythms of life and ecology.

Monthly Sunshine in Pohnpei, Micronesia

Monthly sunshine duration represents the total hours of direct sunlight Pohnpei receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec222h262h282h268h267h284h293h303h282h286h260h273h
Data source: Pohnpei sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Pohnpei UV Index Trends

Pohnpei, Micronesia experiences consistently high UV Index values throughout the year, underscoring the extreme solar exposure characteristic of its tropical climate. During the peak months from January to March, the UV Index escalates, peaking at 17 in both March and April. This level of UV radiation correlates with a burn time of just 10 minutes, necessitating caution for outdoor activities. Even as the year progresses into the summer, relatively high values persist, with readings between 13 and 16 throughout mid to late months, maintaining the extreme exposure classification.

Despite slight fluctuations, the UV Index in Pohnpei remains a significant health concern year-round, with values consistently categorized as extreme. Even during the cooler months of December and January, when UV Index dips to 13 and 15, respectively, the burn time remains critically low at 10 minutes. Such data serves as a crucial reminder for residents and visitors alike to prioritize sun safety measures, including the use of protective clothing, sunscreen, and seeking shade, to mitigate the risks associated with prolonged exposure to intense UV radiation throughout the year.

Monthly Maximum UV Index for Pohnpei, Micronesia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Pohnpei. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec151617171514131414141413
Data source: Pohnpei UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Pohnpei

Daylight duration in Pohnpei, Micronesia, exhibits a remarkable consistency throughout the year, with only slight variations. Both January and February enjoy approximately 11 hours of daylight, creating a steady rhythm that marks the beginning of the year. As spring approaches, daylight lengthens slightly, reaching 12 hours in March and remaining stable at this duration through June. This consistency throughout the warmer months enhances the vibrant tropical environment, providing ample opportunity for both ecological activity and human endeavor.

As the year progresses into the latter half, daylight hours begin to revert to the earlier pattern, with the duration dropping back to 11 hours in October, November, and December. This cyclical return to shorter days aligns with shifts in seasonal weather patterns and reinforces the tropical climate's characteristics. Overall, the relatively even distribution of daylight hours throughout the year highlights Pohnpei's unique position near the equator, fostering a stable environment conducive to diverse flora and fauna, as well as a lifestyle closely attuned to the natural rhythms of light and shadow.

Average Monthly Daylight Hours in Pohnpei, Micronesia

This chart shows the total daylight hours Pohnpei receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec708h715h724h733h741h745h743h736h727h718h710h707h
Data source: Pohnpei daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Pohnpei's Popular Destinations

Kapingamarangi, Micronesia, enjoys a tropical climate with consistent temperatures ranging from a minimum of 25-26°C (78-79°F) to a maximum of 30°C (86°F) throughout the year. The region experiences significant rainfall, particularly in April with 318 mm (12.5 in), while October is relatively drier with only 96 mm (3.8 in) of precipitation. Sunshine hours peak in August with 307 hours, contributing to a warm and inviting atmosphere. Overall, Kapingamarangi showcases a humid tropical environment ideal for biodiversity and natural beauty. For more detailed climate information, visit Kapingamarangi climate.

Kolonia, Micronesia, experiences a tropical climate characterized by consistently warm temperatures ranging from 25°C (78°F) to 30°C (86°F) throughout the year. Rainfall is notable, with the wettest months occurring from March to May, where precipitation can reach up to 386 mm (15.2 in). Kolonia enjoys a healthy amount of sunshine, particularly in August and July, with over 300 hours of sunshine recorded. This combination of warmth and humidity makes it a lush and vibrant location. For more details, visit Kolonia climate.

Kolonia Town, Micronesia, experiences a tropical climate characterized by consistently warm temperatures throughout the year, with average highs around 27°C (81°F) and maximums reaching up to 30°C (86°F) in October. The region receives substantial rainfall, peaking in May with 386 mm (15.2 in) and displaying a wettest period from March to June. Sunshine hours are abundant, especially in July and August, where residents enjoy over 296 hours of sunshine. For more detailed climate data, visit Kolonia Town climate.

The climate in Madolenihm Municipality, Micronesia, is characterized by warm temperatures year-round, with averages around 27°C (81°F) and maximums typically peaking at 30°C (86°F) in October. Precipitation is significant, particularly in May, which receives the highest average monthly rainfall at 406 mm (16.0 in). Despite varying rainfall, the area enjoys ample sunshine, peaking in hours during August with 303 hours of sun. This tropical climate ensures lush landscapes and a vibrant ecosystem, making it a unique destination. For more details, visit the Madolenihm Municipality Government climate.

Mokil, Micronesia experiences a tropical maritime climate characterized by consistently warm temperatures throughout the year, with averages around 27°C (82°F) and maximums peaking at 30°C (86°F) in October. The region receives substantial rainfall, particularly in May (406 mm) and November (334 mm), contributing to an overall wet climate; January typically sees the highest monthly precipitation (249 mm). Sunshine is abundant, with the sunniest months being July and August, registering over 290 hours. For more detailed information, visit Mokil climate.

Ngatik, Micronesia experiences a warm tropical climate characterized by consistent temperatures throughout the year, ranging from a minimum of 25°C (77°F) to a maximum of 30°C (87°F) during its warmest months. The region receives substantial rainfall, peaking in May at 439 mm (17.3 in) and maintaining high monthly averages above 300 mm (11.8 in) during several months. Sunshine hours are abundant, particularly from July to August, with over 290 hours of sun, enhancing the tropical experience. For more detailed information, visit Ngatik climate.

Nukuoro, Micronesia, experiences a warm tropical climate with consistent temperatures throughout the year, typically ranging from a minimum of 25°C (78°F) to a maximum of 30°C (86°F). The wettest months are January and March, with precipitation exceeding 400 mm (15.8 in), while October is the driest month, receiving only 170 mm (6.7 in). Sunshine is abundant, particularly in August and October, with over 300 hours of sunlight. This combination of warmth, humidity, and rainfall supports rich biodiversity and a lush landscape. For more detailed information, visit Nukuoro climate.

The climate in Palikir - National Government Center, Micronesia, is characterized by consistently warm temperatures throughout the year, with averages around 27°C (81°F) and maximums rarely exceeding 30°C (86°F). Rainfall is significant, particularly in May (386 mm) and December (393 mm), contributing to an annual total that supports lush vegetation. The region enjoys ample sunshine, especially during the summer months, with July and August seeing around 296 to 303 hours of sunlight. Overall, Palikir's climate is tropical, offering warm weather mingled with substantial rainfall. For more details, visit Palikir - National Government Center climate.

Pingelap, Micronesia experiences a tropical climate characterized by consistently warm temperatures averaging around 27°C (81°F) year-round, with maximums typically reaching 29°C (84°F-87°F). The region receives substantial rainfall, peaking in May with 446 mm (17.6 in), contributing to its lush vegetation. Sunshine is plentiful, particularly from July to August, when it averages over 289 hours per month. This combination of warmth and precipitation supports a rich ecosystem, making it an intriguing destination for nature enthusiasts. For more details, visit Pingelap climate.

Conclusion

In conclusion, Pohnpei, Micronesia, presents a captivating example of a tropical climate marked by stable temperature patterns, substantial precipitation, high UV exposure, consistent daylight duration, and ample sunshine. Characterized by warm temperatures year-round, the island's climate fosters rich biodiversity and supports local lifestyles deeply connected to the environment. The extreme UV Index and significant rainfall patterns highlight the necessity for sun safety and awareness of seasonal shifts, while the steady daylight duration underscores Pohnpei's equatorial nature. Collectively, these climatic features not only shape the ecological landscape of Pohnpei but also influence the daily lives and cultural practices of its inhabitants, making it a unique island within the Pacific region.

Discover the Climate of Pohnpei's Places

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