Chuuk weather by month
The best time to visit Chuuk is February to April — 77/100 in February, 30°C and 12 rainy days. The best season is the dry season, January to April (74/100 on average).
The worst month is December at 63/100 — sweltering, soaked, clean air. See December →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Micronesia →
Best season: January to April (74/100 on average) · worst December (63/100)
- Days
- 30°C
- Nights
- 26°C
- Wet days
- 12
- Sun
- 10.1 h
- Humidity
- 80%
- Daylight
- 12 h

Chuuk, month by month
Comfort score out of 100 for the kind of trip Chuuk is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Chuuk through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Chuuk in February
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyone of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Traveller notes on Chuuk
What people who have been say about the place — the year-round notes first, then month by month.
Forum posters name the last few months of the year as Chuuk's rainy season, with murkier underwater visibility than the drier months, and December through February averaging around 83F alongside genuinely heavy annual rainfall - Chuuk sits within the same wet tropical Micronesian pattern as neighboring Pohnpei. Posters are direct that being technically in a 'dry season' window is no guarantee, though - one visitor specifically reported days of constant rain during a February dive trip despite the seasonal label. Posters consistently rate Chuuk's wreck-diving as world-class regardless of surface weather, with underwater visibility the more relevant variable than rainfall for most visitors' actual itinerary.
Forum posters describing diving conditions across Micronesia note the final months of the year bring the rainier season with murkier underwater visibility, implying mid-year months like August offer relatively better diving conditions at Chuuk's famous Truk Lagoon wreck sites. Posters are direct that even during heavier rain, underwater visibility on the wrecks typically still holds at 25 meters or more, with water temperature a consistently pleasant 82F (about 28C) year-round. Posters consistently rate the wreck diving here among the best in the world, with several specifically saying it's worth visiting even if a rainier month is the only time available. Posters generally rate August as reliably rainy but among the better months for diving-focused visits to Chuuk, the underwater experience holding up well regardless of surface weather.
Add your own note from Chuuk's card on the map.