Ko Yao Yai Weather in September

September in Ko Yao Yai sees daytime temperatures around 30°C (86°F) and lows of 26°C (79°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Ko Yao Yai in September

As part of the rainy season, Ko Yao Yai sees around 23 days of rain in September, with an average of 322 mm (13 in). Rain during the rainy season is significant rather than just light drizzle. Expect proper showers on most rainy days.

Temperature in Ko Yao Yai in September

In September, Ko Yao Yai gets high temperatures, with highs of 30°C (86°F). Nights cool to around 26°C (79°F). This kind of day-to-night contrast is typical for this time of year. With lows of 26°C (79°F), it stays warm throughout the night. A cold shower before going to sleep is one of the easiest ways to cool down before bed.

Sunshine in Ko Yao Yai in September

The month has fewer sunny days, with around 0 hours of sunshine.

September in Ko Yao Yai 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.

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For a detailed overview over the year and the best time to visit Thailand, check out our Ko Yao Yai's climate page.

Ko Yao Yai Temperature in September

Min Temperature 26°C (79°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 75%  

Precipitation 322 mm (13 in)  

Rainy days 23 days  

Sunshine 0 hours *  

Percentage Sunshine *  

* Data from: Ao Phang Nga Marine national park, Thailand (25 KM, 15 Miles).

What to Wear in Ko Yao Yai in September

Warm but pleasant conditions in Ko Yao Yai in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Ko Yao Yai in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

7/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Thailand, check out our Ko Yao Yai's climate page.

More climate data for Ko Yao Yai

Temperature Rainfall Sunshine

See the full Ko Yao Yai climate overview or explore weather in Thailand.