Main image

Peter Minton from EVS-Islands CC BY-SA 4.0 Wikimedia Commons

Olimarao

Island

Olimarao Atoll in Yap State: an uninhabited coral atoll and marine reserve prized for remote snorkeling, diving and seabird colonies; access requires boat or liveaboard arrangements.

Olimarao PohnpeiChuuk LagoonYapOlimarao

Olimarao essentials

Address: Olimarao Atoll, Yap State, Federated States of Micronesia
Hours: Open access (no set hours)
Admission: Free

About Olimarao

Olimarao is a small, uninhabited atoll in Yap State of the Federated States of Micronesia. It is valued for its intact marine habitats and bird colonies.

The atoll comprises a coral rim with a central lagoon and largely undeveloped islets that provide nesting habitat for seabirds and important reef and lagoon environments for marine life. Visitors generally encounter no infrastructure and should expect natural, undeveloped conditions.

Like other remote atolls in the Caroline Islands, Olimarao has been used intermittently by local islanders for fishing and resource gathering but has no permanent settlement. It is recognised for its ecological importance rather than built heritage.

Olimarao lies in Yap State within the Caroline Islands of the western Pacific Ocean and is administered as part of the Federated States of Micronesia. It is one of the outer islands associated with Yap island.

  • Access and facilities: Uninhabited and remote, access typically requires private boat passage and permission from local authorities; there are no visitor facilities on the atoll.
When to Go

Best Time to Visit Olimarao

Best visited in the dry season (roughly December-April) for calmer seas and clearer conditions around the atoll.

Dry season (best for visiting)
Dec-Apr · 26-30°C
Drier weather, calmer seas and better conditions for boat access and snorkeling around the atoll.
Wet season
May-Nov · 26-30°C
More frequent heavy showers and rougher seas; travel can be disrupted by storms and heavier rainfall.

Weather & Climate near Olimarao

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 25°C to 33°C. Heavy rainfall (2982 mm/year), wettest in August.

Air Quality: AQI 12 Good
Temperature & Rainfall
Temperature Range
33°
Warmest Month
25°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 26° - 32° 29° 180 mm - - 4.1 m/s - -
February - 26° - 32° 29° 150 mm - - 3.7 m/s - -
March - 26° - 32° 29° 160 mm - - 3.9 m/s - -
April - 26° - 32° 29° 222 mm - - 4.0 m/s - -
May - 26° - 32° 29° 251 mm - - 3.6 m/s - -
June - 26° - 32° 29° 278 mm - - 3.0 m/s - -
July - 25° - 32° 29° 318 mm - - 3.0 m/s - -
August - 25° - 32° 29° 348 mm - - 3.6 m/s - -
September - 25° - 32° 29° 275 mm - - 3.2 m/s - -
October - 25° - 33° 29° 285 mm - - 3.1 m/s - -
November - 26° - 33° 29° 270 mm - - 3.2 m/s - -
December - 26° - 32° 29° 245 mm - - 3.6 m/s - -
Getting There & Around

How to Get to Olimarao

Olimarao is a small atoll in Yap State and is reached only by sea from Yap’s main island (Colonia) or other nearby islands. Travelers normally arrange boat transfers through local operators in Colonia; there are no regular commercial flights to tiny outer atolls, so plan transport and timing with local boat services in advance.