December on Phu Quoc in Numbers: Heat, Rain and Sea
If you like to plan a trip around hard figures rather than vague promises, December on Phu Quoc gives you plenty to work with. This is the month when the island leaves the wet season behind and settles into the dry months, and the shift shows up clearly in the data.
Air temperature through the day
The average sits around 27 to 28°C. Afternoons usually climb to about 30°C, while evenings ease back to somewhere between 22 and 25°C. That spread matters: midday is warm enough for swimming, and the cooler evening is pleasant for eating outdoors or walking along the sand.
- Daily range: roughly 22 to 30°C
- Average: about 27 to 28°C
- Sunshine: around 7 hours a day
Rain and humidity
Total rainfall for the month is roughly 104mm, far lower than the months before it. Short showers can still pass over, but they rarely cancel a plan for long. Humidity drops to about 72 to 74 percent, which you will notice the moment you step off the plane if you have visited during the wet season.
The sea
Minh hoạ: phu quoc december weather
Water temperature averages close to 28°C and the surface is generally calm. Underwater visibility often reaches 15 to 20 meters, which is why snorkel boats get busy this month.
Conclusion
Put together, the figures describe a month of warm days, cooler nights, little rain and a quiet sea. Treat the numbers as averages, since any single week can vary, and keep a light layer for evenings. If you want the full month profile with activity ideas attached, it is worth a look. Further reading: a full December climate guide for the island.
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