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Koh Samui in December
Koh Samui, Thailand

Koh Samui in December

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Koh Samui in December

Koh Samui, Thailand

Visiting Koh Samui in December means experiencing the dry season. As a tropical destination, expect warm temperatures year-round with drier conditions and sunny skies.

SeasonDry season
Travel StyleNature's Wonder
Cost$$

Weather in Koh Samui in December

Average highs around 25.6C and lows near 22C. 173.8mm average precipitation and about 18 rainy days. December typically sits between November and January conditions, so it is useful for travelers wanting a balanced window in Koh Samui. Pack quick-dry clothing and a light waterproof layer for December.

Avg High25.6C
Avg Low22C
Rainy Days18
Precipitation173.8mm
Daylight11.6h/day
Sunshine9.6h/day
Wind17.8 km/h
UVmoderate
Humidityhumid

Temperature

December brings dry season conditions in Koh Samui, Thailand. The average temperature is about 23.8C, with lows near 22C and highs around 25.6C.

Sunshine Hours

Koh Samui, Thailand usually gets around 9.6 hours of sunshine per day in December, with roughly 11.6 daylight hours available for sightseeing.

Rain

December sees around 173.8mm of rainfall over about 18 days. Rain can occur for around 8 hours per day on average.

Humidity

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Humidity in December is generally humid for Koh Samui, Thailand, especially when rainfall periods increase.

Additional Information

Average winds are around 17.8 km/h, so pack layers that handle changing conditions. Pack quick-dry clothing and a light waterproof layer for December.

Our December Hotel Picks for Koh Samui

Napasai Samui

Napasai Samui

Airy accommodations in an upscale resort featuring a spa, a private beach & an infinity pool.

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Silavadee Pool Spa Resort

Silavadee Pool Spa Resort

Choice cliffside resort with infinity pools, a spa & a free beach shuttle, plus gulf-view dining.

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Bo Phut Resort

Bo Phut Resort

Upmarket beachfront hotel with an outdoor pool & 2 restaurants, plus a gym & a spa.

View hotel

What to Do in Koh Samui in December

Ban Tai Beach

Ban Tai Beach

Explore activity
Mu Ko Ang Thong National Marine Park

Mu Ko Ang Thong National Marine Park

National park over an island archipelago featuring forested peaks, scenic views & abundant wildlife.

Explore activity
Elephant Jungle Sanctuary Samui (Soi 1 Branch)

Elephant Jungle Sanctuary Samui (Soi 1 Branch)

Explore activity

Travel tips for Koh Samui in December

Pack quick-dry clothing and a light waterproof layer for December. Book accommodation earlier when events overlap with peak weekends, and keep an eye on changing weather windows for day trips.

FAQ: Koh Samui in December

Is December a good month to visit Koh Samui?
December sits in the dry season period, so trip quality depends on your preferred weather, crowd levels, and pace.
What should I pack for Koh Samui in December?
Average highs around 25.6C and lows near 22C. Pack quick-dry clothing and a light waterproof layer for December.
What weather should I expect in Koh Samui during December?
December typically averages around 23.8C, with about 173.8mm of rain across 18 days.

Other Months

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

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