Chiang Saen Weather in September

Chiang Saen in September averages 33°C (91°F) during the day and 24°C (75°F) at night. September is part of the rainy season, so frequent rainfall is typical.

Rainfall in Chiang Saen in September

As part of the rainy season, Chiang Saen sees around 18 days of rain in September, with an average of 295 mm (12 in). The rain this month falls heavily when it arrives. Late afternoons in particular can see strong showers, so waterproofs are worth keeping handy.

Temperature in Chiang Saen in September

Daytime highs in Chiang Saen in September reach 33°C (91°F), with nights around 24°C (75°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Chiang Saen in September

The city usually sees around 145 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).

September in Chiang Saen has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.