Island in Krabi, Thailand
Koh Lanta weather by month and the best time to visit
When to go to Koh Lanta
Nov–Apr is dry with calm seas. Dec–Jan is busiest. May–Oct is monsoon: rough seas and many restaurants and resorts close.
Koh Lanta weather by month
Average daily high, rainfall and conditions.
- Jan28°83 mm
- Feb29°22 mm
- Mar29°101 mm
- Apr29°138 mm
- May29°230 mm
- Jun29°241 mm
- Jul29°244 mm
- Aug28°271 mm
- Sep28°307 mm
- Oct28°304 mm
- Nov28°212 mm
- Dec28°134 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 28°C82°F | 26°C79°F | 83 mm | 80% | Pleasant |
| February | 29°C84°F | 26°C79°F | 22 mm | 76% | Pleasant |
| March | 29°C85°F | 27°C81°F | 101 mm | 76% | Pleasant |
| April | 29°C85°F | 28°C83°F | 138 mm | 78% | Pleasant |
| May | 29°C85°F | 28°C83°F | 230 mm | 79% | Rainy |
| June | 29°C84°F | 28°C83°F | 241 mm | 79% | Rainy |
| July | 29°C83°F | 28°C82°F | 244 mm | 79% | Rainy |
| August | 28°C83°F | 28°C82°F | 271 mm | 80% | Rainy |
| September | 28°C83°F | 27°C81°F | 307 mm | 81% | Very wet |
| October | 28°C82°F | 27°C80°F | 304 mm | 82% | Very wet |
| November | 28°C83°F | 27°C80°F | 212 mm | 82% | Rainy |
| December | 28°C82°F | 26°C79°F | 134 mm | 81% | Pleasant |
Best months across Thailand
| Place | Best months | Warmest month |
|---|---|---|
| Bangkok | Nov–Feb | Mar (36°C) |
| Phuket | Nov–Mar | Mar (30°C) |
| Chiang Mai | Nov–Jan | Apr (37°C) |
| Koh Samui | Jan–Apr, Jul–Aug | May (30°C) |
| Krabi | Nov–Mar | Mar (31°C) |
| Koh Phi Phi | Nov–Mar | Apr (30°C) |
| Koh Phangan | Jan–Apr, Jul–Aug | May (27°C) |
| Pai | Nov–Feb | Apr (35°C) |
| Pattaya | Nov–Feb | Apr (31°C) |
| Koh Tao | Feb–Aug | May (29°C) |
| Patong | Nov–Apr | Mar (30°C) |
| Hua Hin | Nov–Mar | Apr (33°C) |
| Chiang Rai | Nov–Feb | Apr (35°C) |
| Ayutthaya | Nov–Feb | Mar (37°C) |
| Koh Lanta | Nov–Apr | Apr (29°C) |
| Railay | Nov–Mar | Mar (31°C) |
| Kanchanaburi | Nov–Feb | Apr (37°C) |
| Koh Chang | Nov–Feb | Apr (30°C) |
| Khao Lak | Nov–Mar | Mar (31°C) |
| Koh Samet | Nov–Mar | Apr (30°C) |
| Koh Lipe | Nov–Mar | Apr (30°C) |
| Khao Yai | Nov–Feb | Apr (34°C) |
| Khao Sok | Dec–Apr | Apr (32°C) |
| Sukhothai | Nov–Feb | Apr (38°C) |
| Hat Yai | Jan–Apr | Apr (31°C) |
| Kata Beach | Nov–Mar | Mar (30°C) |
| Jomtien | Nov–Feb | Apr (31°C) |
| Rawai | Nov–Mar | Mar (30°C) |
| Udon Thani | Nov–Feb | Apr (37°C) |
| Koh Kood | Nov–Mar | May (30°C) |
Quick answers
What is the best month to visit Koh Lanta?
Nov–Apr. Nov–Apr is dry with calm seas. Dec–Jan is busiest. May–Oct is monsoon: rough seas and many restaurants and resorts close.
When is the rainy season in Koh Lanta?
Rain peaks in September with about 307 mm. Months with 150 mm or more: May–Nov.
What is the hottest month in Koh Lanta?
April, with average highs of 29°C (85°F).
How cold does Koh Lanta get?
The coolest nights are in January, averaging 26°C (79°F).
More about Koh Lanta
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.