September weather forecast
Con Son, Vietnam

The weather in September in Con Son, Vietnam sees a continuation of the rainy season, with the highest recorded rainfall volume of 285mm (11.22"). The trend of warm temperatures persists, creating a steamy atmosphere typical of tropical climates. Meanwhile, the sea temperature shows a slight rise from August, providing warm seawater ideal for swimming and water sports. September's unique blend of warm temperatures and heavy rainfall shapes the climatic conditions within the city, seamlessly merging the sphere of land and water.

Temperature

As August turns into September, the average high-temperatures rest at a still hot 31°C (87.8°F), without variation from the prior month. In September, Con Son experiences an average nighttime temperature of 24°C (75.2°F).

Rainfall

In Con Son, during September, the rain falls for 21 days and regularly aggregates up to 285mm (11.22") of precipitation. Throughout the year, in Con Son, there are 166 rainfall days, and 2040mm (80.31") of precipitation is accumulated.

Sea temperature

In Con Son, in September, the average water temperature is 28.8°C (83.8°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

In Con Son, the average length of the day in September is 12h and 10min.
On the first day of September in Con Son, sunrise is at 05:44 and sunset at 18:01. On the last day of the month, sunrise is at 05:41 and sunset at 17:44 +07.

Sunshine

June through December, with an average of 5h of sunshine, are months with the least sunshine in Con Son.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 12 translates into these guidelines:
Enforce every key safety measure. Those with light skin might get burns in a matter of minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Despite the cloud cover, sunscreen with an SPF of at least 30 should be generously applied and reapplied, particularly after a swim or an outdoor workout. Caution! Sand and water surfaces escalate the UV intensity from the Sun.