Climatology for Chuuk International Airport (PTKK)

Located in the deep tropics of the Western Pacific at 7 N and 151 E, Chuuk's climate is influenced by the persistent northwest trade winds and the monsoon trough/ITCZ.

Temperature

    Chuuk is surrounded by consistently warm ocean water, whose temperature change is only on the order of one or two degrees C throughout the year. Since it is located about 3000 miles southeast of the Asian Continent, cold air masses undergo nearly complete moderation before reaching the islands.  

Winds

Chuuk Wind gust History, July 1994 - June 2002 [27 Kb]    [Source: NOAA: WMO Resolution 40]

Rainfall

Chuuk receives approximately 142" of rain per year, mostly from frequent showers and squalls, typically dropping less than 2" per day. Daily rainfalls over 5" are rare, and tend to occur when organized tropical systems are in the vicinity. 

Chuuk Rainfall History, July 1994 - June 2002 [25 Kb]    [Source: NOAA: WMO Resolution 40]

Severe Events

February 2002    Flooding from Tropical Storm Mitang                               

July 2, 2002        Flooding and landslides from Tropical Storm Chata'an