August continues to see elevated rainfall and occasional storm systems; travel between islands can be affected. Visitor numbers are generally lower and prices may drop.
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Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Federated States of Micronesia in August.
September typically remains humid and unsettled with more frequent squalls and occasional storm systems tracking through the region; reef clearances can drop and currents strengthen around passes. Fishing communities may reduce long-distance trips, so liveaboards and dive schedules can change at short notice. For travellers, this is a shoulder time for cheaper accommodation but greater uncertainty-pack waterproofs, flexible plans and patience for rebooked boats.
September is frequently among the wettest and most changeable months, with storms producing strong rain bands and sometimes higher winds that muddy shallow reefs and force cancelations of island-hopping services. For history-focused travellers the fewer visitors mean quieter wreck sites if weather permits entry, but safety and flexibility are paramount. Pack sturdy waterproof luggage, a strong raincoat and patience for sudden plan changes.
September remains within the higher-risk months for tropical systems; Kolonia can see intermittent heavy downpours and gusty winds that impact small-plane flights and boat schedules to outer islets. For trekkers, muddy conditions persist and route-finding becomes harder in cloud-enshrouded highlands; hire a local guide and wear waterproof socks. Underwater visibility nearshore can decline after large rain events, so plan dives conservatively.
September often sees continued instability with a higher chance of storm bands and resultant heavy downpours; rivers can swell quickly and some remote guesthouses may be temporarily cut off by flooded roads. This is a low-visitor period and dive operators may consolidate trips; pack waterproof gear and accept that itineraries can shift. Safety-first policies mean that some remote treks may be postponed after sustained rain.
There are no major festivals or events in Federated States of Micronesia during August to be aware of.
See how August compares with the rest of the year, then read the full guide.