September weather forecast
Phú Quốc, Vietnam

September in Phú Quốc observes a slight decrease in rainfall, despite remaining substantially high. Comparing September with August, a similar weather pattern can be detected with a noticeable reduction in rainfall. Moving into October, the rainfall continues to decrease albeit slowly. Throughout the month, the sea temperature appears to be in sync with the air temperature, fostering coastal activities. The key statistics for September include temperatures ranging from 24°C (75.2°F) to 31°C (87.8°F) alongside a 296mm (11.65") rainfall distributed over 21 days.

Temperature

The progression from August to September results in an average high-temperature of a still tropical 31°C (87.8°F), a mirror image of August's readings. Phú Quốc records an average nighttime low of 24°C (75.2°F) in September.

Rainfall

In Phú Quốc, in September, it is raining for 21 days, with typically 296mm (11.65") of accumulated precipitation. Throughout the year, in Phú Quốc, Vietnam, there are 156 rainfall days, and 2321mm (91.38") of precipitation is accumulated.

Sea temperature

In Phú Quốc, in September, the average water temperature is 29°C (84.2°F).
Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 05:54 and sunset at 18:13. On the last day of September, sunrise is at 05:52 and sunset at 17:55 +07.

Sunshine

The months with the least sunshine in Phú Quốc are July through September, with an average of 5h of sunshine.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV radiation for the average person.
Note: In September, the UV index of 12 transforms into the following advice:
Enforce every vital precaution. Those with light skin could endure burns in a matter of minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Even on a cloudy day, sunscreen with a minimum SPF of 30 should be used liberally and reapplied often, especially after a swim or outdoor activity. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.