Phú Quốc Water Temperature
Updated Fri 08:29 (Asia/Ho_Chi_Minh)
Vietnam · Forecast updated Sep 25, 2026, 08:29 UTC
Current Sea Temperature
29.2°C
84.6°F
Very warm water
Valid Sep 25, 2026, 08:29 (Asia/Ho_Chi_Minh). Source: stored Open-Meteo marine forecast. Temperature is not a safety rating or snorkel score.
Versus this month's average
Close to average
The typical September average is 29.3°C (84.7°F) from the historical baseline.
Recent trend
Warming by 0.5°C
Seven-day average: 29.7°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 Phú Quốc, typical monthly averages range from about 28.8°C (83.8°F) in January to 31.8°C (89.2°F) in May.
Over the past 30 days, the average sea temperature in Phú Quốc has been 29.3°C.
Historical baseline (full year)
Northern Hemisphere. Summer is generally June–August; winter is December–February.
Typical monthly sea-surface temperature near Phú Quốc, calculated from hourly observations for 2023–2025. This is not this site's forecast archive.
| Month | Typical range | Average |
|---|---|---|
| January | 28.0–29.7°C | 28.8°C / 83.8°F |
| February | 28.8–29.8°C | 29.3°C / 84.7°F |
| March | 29.4–30.3°C | 30.0°C / 86.0°F |
| April | 31.0–31.6°C | 31.3°C / 88.3°F |
| May | 31.4–32.3°C | 31.8°C / 89.2°F |
| June | 30.0–30.7°C | 30.3°C / 86.5°F |
| July | 29.5–29.6°C | 29.6°C / 85.3°F |
| August | 29.5–30.4°C | 29.9°C / 85.8°F |
| September | 29.3–29.4°C | 29.3°C / 84.7°F |
| October | 29.9–30.2°C | 30.1°C / 86.2°F |
| November | 29.3–30.4°C | 30.0°C / 86.0°F |
| December | 29.2–29.9°C | 29.5°C / 85.1°F |
Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature dataset. Nearest sea grid cell (10.21, 103.96). 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.
Phú Quốc in January
Typical January water temperature near Phú Quốc is 28.8°C (83.8°F), with yearly monthly means from 28.0–29.7°C.
Phú Quốc in February
Typical February water temperature near Phú Quốc is 29.3°C (84.7°F), with yearly monthly means from 28.8–29.8°C.
Phú Quốc in March
Typical March water temperature near Phú Quốc is 30.0°C (86.0°F), with yearly monthly means from 29.4–30.3°C.
Phú Quốc in April
Typical April water temperature near Phú Quốc is 31.3°C (88.3°F), with yearly monthly means from 31.0–31.6°C.
Phú Quốc in May
Typical May water temperature near Phú Quốc is 31.8°C (89.2°F), with yearly monthly means from 31.4–32.3°C.
Phú Quốc in June
Typical June water temperature near Phú Quốc is 30.3°C (86.5°F), with yearly monthly means from 30.0–30.7°C.
Phú Quốc in July
Typical July water temperature near Phú Quốc is 29.6°C (85.3°F), with yearly monthly means from 29.5–29.6°C.
Phú Quốc in August
Typical August water temperature near Phú Quốc is 29.9°C (85.8°F), with yearly monthly means from 29.5–30.4°C.
Phú Quốc in September
Typical September water temperature near Phú Quốc is 29.3°C (84.7°F), with yearly monthly means from 29.3–29.4°C.
Phú Quốc in October
Typical October water temperature near Phú Quốc is 30.1°C (86.2°F), with yearly monthly means from 29.9–30.2°C.
Phú Quốc in November
Typical November water temperature near Phú Quốc is 30.0°C (86.0°F), with yearly monthly means from 29.3–30.4°C.
Phú Quốc in December
Typical December water temperature near Phú Quốc is 29.5°C (85.1°F), with yearly monthly means from 29.2–29.9°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 | 29.9°C / 85.8°F | 30.5°C / 86.8°F | 31.0°C / 87.8°F |
| July | 28.8°C / 83.8°F | 29.7°C / 85.4°F | 30.5°C / 86.9°F |
| August | 29.0°C / 84.2°F | 29.4°C / 84.9°F | 30.0°C / 86.0°F |
| September | 28.8°C / 83.8°F | 29.3°C / 84.8°F | 30.2°C / 86.4°F |
Partial coverage: 4 calendar months with records. Profile calculated from 2801 hourly forecast records across 4 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Phú Quốc
Gulf of Thailand island with An Thoi archipelago coral and clear shallows.
- Area
- Kiên Giang
Phú Quốc Water Temperature: Common Questions
What is the water temperature in Phú Quốc today?
The current sea surface temperature near Phú Quốc is 29.2°C (84.6°F). Over the last 30 days, the average has been 29.3°C.
When is the water warmest in Phú Quốc?
The water is typically warmest in May, at around 31.8°C (89.2°F) in the 2023–2025 historical baseline.
When is the water coldest in Phú Quốc?
The water is typically coldest in January, at around 28.8°C (83.8°F) in the same historical baseline.
Can you swim in Phú Quốc today?
At 29.2°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 Phú Quốc.
View Snorkel Forecast →