Raja Ampat Water Temperature
Updated Tue 14:52 (Asia/Makassar)
Indonesia · Forecast updated Sep 22, 2026, 14:52 UTC
Current Sea Temperature
29.1°C
84.4°F
Very warm water
Valid Sep 22, 2026, 14:52 (Asia/Makassar). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
0.6°C below
The typical September average is 29.7°C (85.5°F) from the historical baseline.
Recent trend
Holding fairly steady
Seven-day average: 29.1°C, versus 29.2°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions or replace the snorkel forecast.
Typical Sea Temperature Over the Year
In the historical baseline for Raja Ampat, typical monthly averages range from about 29.6°C (85.3°F) in February to 30.3°C (86.5°F) in November.
Over the past 30 days, the average sea temperature in Raja Ampat has been 29.1°C.
Historical baseline (full year)
Southern Hemisphere. Summer is generally December–February; winter is June–August.
Typical monthly sea-surface temperature near Raja Ampat, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 29.8–30.4°C | 30.0°C / 86.0°F |
| February | 29.6–29.6°C | 29.6°C / 85.3°F |
| March | 29.8–30.2°C | 30.0°C / 86.0°F |
| April | 30.0–30.3°C | 30.1°C / 86.2°F |
| May | 30.1–30.3°C | 30.2°C / 86.4°F |
| June | 29.8–30.0°C | 29.9°C / 85.8°F |
| July | 29.4–29.8°C | 29.6°C / 85.3°F |
| August | 29.3–29.7°C | 29.6°C / 85.3°F |
| September | 29.3–29.9°C | 29.7°C / 85.5°F |
| October | 29.7–30.3°C | 30.0°C / 86.0°F |
| November | 30.2–30.4°C | 30.3°C / 86.5°F |
| December | 30.1–30.5°C | 30.3°C / 86.5°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (-0.21, 130.54). Each month is the mean of yearly monthly means; the range is the lowest and highest of those yearly monthly means. Open-Meteo methodology.
Water temperature by month
Each month uses the 2023–2025 baseline. The range is the lowest and highest yearly monthly mean, not an hourly extreme.
Raja Ampat in January
Typical January water temperature near Raja Ampat is 30.0°C (86.0°F), with yearly monthly means from 29.8–30.4°C.
Raja Ampat in February
Typical February water temperature near Raja Ampat is 29.6°C (85.3°F), with yearly monthly means from 29.6–29.6°C.
Raja Ampat in March
Typical March water temperature near Raja Ampat is 30.0°C (86.0°F), with yearly monthly means from 29.8–30.2°C.
Raja Ampat in April
Typical April water temperature near Raja Ampat is 30.1°C (86.2°F), with yearly monthly means from 30.0–30.3°C.
Raja Ampat in May
Typical May water temperature near Raja Ampat is 30.2°C (86.4°F), with yearly monthly means from 30.1–30.3°C.
Raja Ampat in June
Typical June water temperature near Raja Ampat is 29.9°C (85.8°F), with yearly monthly means from 29.8–30.0°C.
Raja Ampat in July
Typical July water temperature near Raja Ampat is 29.6°C (85.3°F), with yearly monthly means from 29.4–29.8°C.
Raja Ampat in August
Typical August water temperature near Raja Ampat is 29.6°C (85.3°F), with yearly monthly means from 29.3–29.7°C.
Raja Ampat in September
Typical September water temperature near Raja Ampat is 29.7°C (85.5°F), with yearly monthly means from 29.3–29.9°C.
Raja Ampat in October
Typical October water temperature near Raja Ampat is 30.0°C (86.0°F), with yearly monthly means from 29.7–30.3°C.
Raja Ampat in November
Typical November water temperature near Raja Ampat is 30.3°C (86.5°F), with yearly monthly means from 30.2–30.4°C.
Raja Ampat in December
Typical December water temperature near Raja Ampat is 30.3°C (86.5°F), with yearly monthly means from 30.1–30.5°C.
Forecast archive (growing)
These values come from hourly forecasts SnorkelForecast has stored. They cover only months with records and do not replace the historical baseline.
| Month | Min | Average | Max |
|---|---|---|---|
| June | 29.2°C / 84.6°F | 29.7°C / 85.4°F | 30.2°C / 86.4°F |
| July | 28.9°C / 84.0°F | 29.4°C / 84.9°F | 30.0°C / 86.0°F |
| August | 28.7°C / 83.7°F | 29.0°C / 84.2°F | 29.4°C / 84.9°F |
| September | 28.7°C / 83.7°F | 29.2°C / 84.6°F | 29.8°C / 85.6°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2734 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Raja Ampat
The planet's richest marine biodiversity, with electric coral reefs in clear shallow water.
- Area
- West Papua
Raja Ampat Water Temperature: Common Questions
What is the water temperature in Raja Ampat today?
The current sea surface temperature near Raja Ampat is 29.1°C (84.4°F). Over the last 30 days, the average has been 29.1°C.
When is the water warmest in Raja Ampat?
The water is typically warmest in November, at around 30.3°C (86.5°F) in the 2023–2025 historical baseline.
When is the water coldest in Raja Ampat?
The water is typically coldest in February, at around 29.6°C (85.3°F) in the same historical baseline.
Can you swim in Raja Ampat today?
At 29.1°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Raja Ampat.
View Snorkel Forecast →