Koror Climate

Last updated: January 18, 2025

Koror, Palau, exhibits a tropical rainforest climate classified under the Köppen-Geiger system as Af. Characterized by a minimum temperature of 25°C (77°F) in February, the region maintains a consistent average of 27°C (82°F) throughout the year. The conditions peak during October with maximum temperatures reaching 30°C (86°F), indicating a warm, humid environment that supports diverse ecosystems and vibrant biodiversity. This climatic consistency not only shapes the local environment but also influences the daily lives and cultural practices of Koror's residents.

Koror temperature by month

In Koror, Palau, temperature patterns reveal a warm and relatively stable climate throughout the year. Minimum temperatures typically hover around 25°C (78°F) to 26°C (79°F), while average temperatures consistently maintain between 27°C (81°F) and 28°C (82°F). The region experiences slight warming as it transitions from the cooler months of January to March, where maximum temperatures reach about 29°C (84°F), to the warmer months of September through October with peaks of 30°C (86°F). Overall, the mild seasonal variations contribute to an inviting tropical environment that fosters lush vegetation and biodiversity.

Monthly Temperatures in Koror, Palau

The chart illustrates Koror'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.
JanFebMarAprMayJunJulAugSepOctNovDec818181818281818182828282
Data source: Koror temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

In both Koror and Koror Town, the climate remains consistently warm throughout the year, with minimum temperatures around 25°C (77°F) in February and maximum temperatures reaching 30°C (86°F) in October. For a detailed overview of the monthly temperatures in these locations, you can check the links: monthly temperatures in Koror and monthly temperatures in Koror Town.

Precipitation Patterns in Koror

Koror, Palau, experiences significant precipitation throughout the year, with monthly rainfall varying dramatically. The wettest months typically occur from May to July, with May recording a peak of 389 mm (15.3 in) over 26 days, followed closely by July at 365 mm (14.4 in) across 28 days. February also stands out as a particularly rainy month, accumulating 337 mm (13.3 in) in 22 days. This abundant rainfall contributes to the region's lush tropical rainforest environment, supporting diverse ecosystems.

In contrast, March tends to be the driest month, with total precipitation falling to 188 mm (7.4 in) over 21 days. The overall rainy season lasts from January to December, maintaining a relatively high frequency of rainfall days, often ranging from 21 to 28 days each month. This consistent moisture reinforces Koror's humid tropical climate, shaping both its landscape and the daily lives of its residents.

Monthly Average Precipitation in Koror, Palau

The average monthly precipitation in Koror, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec235337188225389302365299284278278310
Data source: Koror precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in Koror

In Koror, Palau, the annual sunshine duration reveals a notable seasonal trend characterized by varying levels of sunlight throughout the year. Notably, the months of March to May experience the highest sunshine hours, with March peaking at 294 hours and closely followed by both April and May, registering 290 and 296 hours, respectively. This increase reflects the transition into drier, sunnier conditions leading into the summer months, creating an ideal atmosphere for outdoor activities and tourism, as the region basks in warmth and light.

As the year progresses into the later months, a gentle decline in sunshine hours is observed, particularly from June to November. While the overall hours remain relatively stable, July through October sees a slight dip, hovering just below 280 hours per month. The trailing months of November and December mark the year's close with 271 hours, indicating a shift toward more overcast days as humidity rises and rainfall increases. This pattern underscores the unique tropical climate of Koror, where sunshine alternates with periods of cloudiness and precipitation, shaping the rich biodiversity and vibrant landscapes of the island.

Monthly Sunshine in Koror, Palau

Monthly sunshine duration represents the total hours of direct sunlight Koror receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec225h260h294h290h296h279h278h288h278h277h271h271h
Data source: Koror sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Koror UV Index Trends

In Koror, Palau, the UV Index consistently ranks within the extreme category throughout the year, underscoring the region's potent sun exposure. The highest UV Index measurements occur from February to April, with values peaking at 16 in both March and April, indicating an urgent need for protective measures against sunburn, as the recommended burn time is a mere 10 minutes. This period represents a critical time for outdoor enthusiasts and residents alike, highlighting the importance of sunscreen, protective clothing, and shade when engaging in outdoor activities.

As the year transitions toward the end, the UV Index shows a slight decline, tapering from 14 in October to 12 in December. Despite this decrease, the values remain significantly high, sustaining an extreme exposure risk. Even in January, the UV Index starts strong at 13, emphasizing that awareness of sun safety remains paramount year-round in Koror. Overall, the consistent intensity of UV radiation in this tropical paradise serves as a vital reminder to prioritize skin protection and health while enjoying its beautiful outdoors.

Monthly Maximum UV Index for Koror, Palau

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Koror. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec131516161513141515141312
Data source: Koror 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 Koror

In Koror, Palau, daylight duration remains fairly stable throughout the year, with only slight fluctuations. From January through February, residents enjoy around 11 hours of daylight, setting a consistent baseline for the early months of the year. As spring arrives in March, the duration increases to 12 hours and maintains this length through the summer months until September. This extended daylight offers ample opportunity for outdoor activities, exploration, and the enjoyment of the region's lush landscapes.

As the year transitions into October, daylight begins to taper back to 11 hours, continuing this trend through November and December. This cyclical pattern highlights the tropical climate’s consistency, with minor variations that are typical of the region's equatorial location. The steady daylight hours throughout the year enhance both the appeal of Koror as a travel destination and the daily lives of its inhabitants, fostering a strong connection with the vibrant natural environment.

Average Monthly Daylight Hours in Koror, Palau

This chart shows the total daylight hours Koror receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec704h712h724h736h746h751h749h740h728h716h706h701h
Data source: Koror daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Koror's Popular Destinations

Koror, Palau has a warm tropical climate characterized by consistently high temperatures ranging from a minimum of 25°C (78°F) to a maximum of 30°C (86°F) throughout the year. The region experiences significant rainfall, with May being the wettest month at 389 mm (15.3 in), while January and March have lower precipitation levels. On average, Koror enjoys substantial sunshine, peaking in March with 294 hours. This combination of warmth, humidity, and rainfall contributes to its lush biodiversity. For more detailed information, visit Koror climate.

Koror Town, Palau, enjoys a tropical climate characterized by warm temperatures year-round, with averages ranging from 27°C (81°F) to 28°C (82°F). The maximum daily temperatures hover around 29°C (85°F) to 30°C (86°F) during the warmer months. Precipitation varies significantly, peaking in May with 389 mm (15.3 in), while sunshine hours reach their highest in March with 294 hours. This vibrant island climate makes Koror Town a unique destination for both locals and visitors alike. For more detailed information, visit Koror Town climate.

Conclusion

In conclusion, Koror, Palau, exemplifies a remarkable tropical climate characterized by consistent warmth, abundant rainfall, and intense sunlight throughout the year. The interplay of high temperatures and frequent precipitation creates a lush environment teeming with biodiversity. With an extreme UV Index necessitating sun protection and stable daylight duration that ensures ample time for outdoor endeavors, residents and visitors alike are afforded a vibrant and engaging experience. Understanding these climatic elements is vital for both the preservation of Koror's unique ecosystems and the well-being of those who call this beautiful island paradise home.

Discover the Climate of Koror's Places

K