SeasonMapRaja Ampat (Waisai) weather in April
Indonesia
April in Raja Ampat: sweltering, soaked, with clean air — fine if you can take 27 rainy days.
#9 of 12 months in Raja Ampat · #1130 of 1383 destinations to visit in April · comfort 67/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Raja Ampat in April
Other months in Raja Ampat
Raja Ampat's forum rates the October-through-April window as the best overall, with October itself a genuine transition month — the strong south winds of July-September starting to calm, though rain can still turn up as the wet season approaches. Regulars flag October as a good stretch for marine life, with bait-fish schools and manta activity drawing divers to the sites.
Add your own note from Raja Ampat's card on the map.
Raja Ampat climate normals — April
| Daytime high | 29°C / 84°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 35°C / 95°F | |
| Sea temperature | 30°C / 86°F | ♨️ bath-warm |
| Rainfall | 336 mm / 13.2 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 12.1 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 21 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Raja Ampat in April
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.
Peak crowdsLebaran domestic peak, Calm season on the straits, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Raja Ampat's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherRaja Ampat's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Raja Ampat in April
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Marine park entry permit
1 Jan – 31 DecEvery visitor buys an entry tag valid for a calendar year, either online beforehand or at the authority office in Waisai. It funds the patrols, and it is checked on the boats. Source ↗
- Holiday
Lebaran domestic peak
5 Mar – 15 Apr · usuallyRamadan & EidCrowdedBook earlyFlights into Sorong and the ferry to Waisai fill with Indonesian holidaymakers for about ten days, and the homestays that stay open are booked out well before it. Source ↗
- Season
Calm season on the straits
15 Oct – 30 Apr · usuallyDry seasonCrowdedThe settled months for both liveaboards and homestays, when the crossings between the big islands are comfortable and the currents are workable. Book the boats a year out for the peak weeks.
- Nature
Manta season
1 Nov – 30 Apr · usuallyDive seasonPlankton in the straits brings reef mantas onto the cleaning stations around Dampier and Arborek, densest in the first months of the year. The same water that feeds them cuts the visibility.
- Season
Wet season
MonsoonRisk27 rainy days and about 336 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is Raja Ampat?
Raja Ampat in April — FAQ
- Is April a good time to visit Raja Ampat?
- April in Raja Ampat: sweltering, soaked, with clean air — fine if you can take 27 rainy days. It ranks #9 of 12 months for Raja Ampat on SeasonMap's comfort score (67/100).
- What is the weather like in Raja Ampat in April?
- In April, Raja Ampat averages a daily high of 28.8°C and a low of 25.9°C, with about 336.4 mm of rain over roughly 27.3 rainy days.
- What is the air quality in Raja Ampat in April?
- Raja Ampat has a mean US Air Quality Index of about 21 in April.