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 →

Chuuk🇫🇲 Micronesia · Micronesia · Island77
  1. 72Jan
  2. 77Feb
  3. 73Mar
  4. 73Apr
  5. 67May
  6. 69Jun
  7. 68Jul
  8. 71Aug
  9. 65Sep
  10. 69Oct
  11. 66Nov
  12. 63Dec

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, Micronesia
Photo: Aotearoa at Polish Wikipedia · Public domain

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.

MonthScoreTierHighRainSunCrowdsOn
Jan72B30°C16 d10 hShoulder1
Feb77B30°C12 d10 hBusy1
Mar73B31°C16 d10 hBusy1
Apr73B31°C17 d10 hBusy1
May67C31°C20 d10 hShoulder—
Jun69C31°C21 d10 hShoulder—
Jul68C31°C21 d10 hShoulder1
Aug71B31°C19 d10 hShoulder1
Sep65C31°C20 d9 hQuiet1
Oct69C31°C19 d9 hBusy2
Nov66C31°C21 d9 hBusy2
Dec63C31°C21 d9 hQuiet1

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.

July
  • Tropical storm months1 Jul – 30 Nov (usually)Hazard
October
  • Chuuk State Constitution Day1 OctHoliday
November
  • FSM Independence Day3 NovHoliday
December
  • Calm months on the wrecks1 Dec – 30 Apr (usually)Season

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)

JFMAMJJASOND

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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Chuuk's card on the map.