SeasonMapThailand in December
December is one of Thailand's best months (rank 3 of 12): its 19 destinations average 84/100, led by Hua Hin at 94 — 29°C and 3 rainy days — while Krabi is warmer at 34°C and scores 82.
#3 of 12 months for Thailand · 19 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Thailand in December
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Hua Hin | Beach | 29°C | 13 mm · 3 days | 94 tier S | Yes |
| 2 | Ko Chang | Island | 30°C | 21 mm · 4 days | 94 tier S | Yes |
| 3 | Pattaya | Beach | 33°C | 11 mm · 2 days | 94 tier S | Yes |
| 4 | Chiang Rai | City | 26°C | 15 mm · 3 days | 91 tier S | Yes |
| 5 | Chiang Mai | City | 30°C | 3 mm · 1 day | 88 tier A | Yes |
| 6 | Khao Lak | Beach | 29°C | 92 mm · 14 days | 85 tier A | — |
| 7 | Pai | Trekking hub | 29°C | 11 mm · 3 days | 85 tier A | Yes |
| 8 | Ayutthaya | City | 31°C | 4 mm · 2 days | 84 tier A | Yes |
| 9 | Kanchanaburi | City | 30°C | 6 mm · 2 days | 84 tier A | Yes |
| 10 | Phuket | Beach | 32°C | 87 mm · 10 days | 84 tier A | — |
| 11 | Ko Phi Phi | Island | 28°C | 88 mm · 11 days | 83 tier A | — |
| 12 | Ko Lanta | Island | 29°C | 113 mm · 11 days | 82 tier A | — |
| 13 | Krabi | Beach | 34°C | 119 mm · 13 days | 82 tier A | — |
| 14 | Bangkok | City | 33°C | 6 mm · 1 day | 81 tier A | Yes |
| 15 | Ko Pha Ngan | Island | 27°C | 125 mm · 13 days | 80 tier A | — |
| 16 | Ko Tao | Island | 26°C | 115 mm · 11 days | 80 tier A | — |
| 17 | Ko Samui | Island | 31°C | 141 mm · 14 days | 76 tier B | — |
| 18 | Ko Lipe | Island | 29°C | 152 mm · 14 days | 75 tier B | — |
| 19 | Khao Sok | National park | 30°C | 90 mm · 13 days | 72 tier B | Yes |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means December is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.
What's on in Thailand in December
- Christmas and New Year peak · Pattaya and 7 more places · 18 Dec – 5 Jan
- Wild Himalayan cherry on the hills · Chiang Mai · 20 Dec – 31 Jan (usually)
- Phuket King's Cup Regatta · Phuket · 5–12 Dec
- Full Moon Party · Ko Pha Ngan · 1 Jan – 31 Dec
- Morning mist on Cheow Lan · Khao Sok · 1 Nov – 15 Feb (usually)
- Wreck and reef diving season · Ko Chang · 1 Nov – 30 Apr (usually)
- Sea of mist at Phu Chi Fa · Chiang Rai · 1 Nov – 15 Feb (usually)
- Wild Himalayan cherry · Chiang Rai · 20 Dec – 15 Feb (usually)
Seasons in force
Peak crowds at 6 of Thailand's 12 well-known places this month.