Cat Ba Weather in September

September in Cat Ba typically sees daytime highs of 31°C (88°F) and nighttime lows of 27°C (81°F). September falls within the rainy season, so heavy rainfall is to be expected.

Rainfall in Cat Ba in September

As part of the rainy season, Cat Ba sees around 14 days of rain in September, with an average of 330 mm (13 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Cat Ba in September

In September, Cat Ba gets very high temperatures, with highs of 31°C (88°F). Nights cool to around 27°C (81°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Cat Ba in September

There are approximately 190 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.

September in Cat Ba can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.