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 ushering in of September in Phú Quốc brings an average high-temperature of a still hot 31°C (87.8°F), closely mirroring the 31°C (87.8°F) of August. During September, Phú Quốc witnesses a consistent average low-temperature of 24°C (75.2°F).

Rainfall

In September, the rain falls for 21 days. Throughout September, 296mm (11.65") of precipitation is accumulated. In Phú Quốc, during the entire year, the rain falls for 156 days and collects up to 2321mm (91.38") of precipitation.

Sea temperature

In Phú Quốc, Vietnam, in September, the average water temperature is 29°C (84.2°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

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 are July through September, with an average of 5h of sunshine.

UV index

The months with the highest UV index in Phú Quốc are February through October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 12 in September translates into these instructions:
Carry out every crucial safety measure. People with fair skin may sustain burns in fewer than 5 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Broad-spectrum sunscreen with an SPF of 30 or more should be applied liberally every two hours and directly after outdoor activities or swimming. Beware! Reflecting off water and sand, UV rays are much stronger.