Island in Surat Thani, Thailand
Koh Phangan weather by month and the best time to visit
When to go to Koh Phangan
Jan–Apr and Jul–Aug are driest. Oct–Dec has heavy rain and flooding. Full Moon Parties and holidays bring huge crowds to Haad Rin.
Koh Phangan weather by month
Average daily high, rainfall and conditions.
- Jan25°135 mm
- Feb25°38 mm
- Mar26°114 mm
- Apr27°90 mm
- May27°170 mm
- Jun27°167 mm
- Jul26°166 mm
- Aug26°144 mm
- Sep26°181 mm
- Oct26°246 mm
- Nov26°375 mm
- Dec25°262 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 25°C76°F | 23°C74°F | 135 mm | 80% | Pleasant |
| February | 25°C77°F | 24°C74°F | 38 mm | 79% | Pleasant |
| March | 26°C79°F | 24°C76°F | 114 mm | 78% | Pleasant |
| April | 27°C81°F | 26°C78°F | 90 mm | 77% | Pleasant |
| May | 27°C81°F | 26°C78°F | 170 mm | 78% | Rainy |
| June | 27°C80°F | 25°C77°F | 167 mm | 80% | Rainy |
| July | 26°C80°F | 25°C77°F | 166 mm | 80% | Rainy |
| August | 26°C79°F | 25°C76°F | 144 mm | 81% | Pleasant |
| September | 26°C79°F | 24°C76°F | 181 mm | 81% | Rainy |
| October | 26°C78°F | 24°C76°F | 246 mm | 81% | Rainy |
| November | 26°C78°F | 24°C76°F | 375 mm | 81% | Very wet |
| December | 25°C77°F | 24°C75°F | 262 mm | 80% | Rainy |
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 Phangan?
Jan–Apr, Jul–Aug. Jan–Apr and Jul–Aug are driest. Oct–Dec has heavy rain and flooding. Full Moon Parties and holidays bring huge crowds to Haad Rin.
When is the rainy season in Koh Phangan?
Rain peaks in November with about 375 mm. Months with 150 mm or more: May–Jul, Sep–Dec.
What is the hottest month in Koh Phangan?
May, with average highs of 27°C (81°F).
How cold does Koh Phangan get?
The coolest nights are in January, averaging 23°C (74°F).
More about Koh Phangan
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Sources
- NASA POWER climatology (2001–2020)
- Tourism Authority of Thailand
- Lomprayah ferries
- Seatran Discovery ferries
- Bangkok Hospital Samui
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. Temperatures are adjusted by 2.7°C for the city's elevation. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.