The short answer
When to go to Krabi
The best window is December to February, when rain is lowest and the sea is calmest for Railay and island trips; March is also good though hotter. The wettest months run from August to October, with rainfall above 260 mm a month and rougher seas that can cancel boat days. For older travellers, the dry months also make boat boarding and wet landings safer; book flexible tours if you travel in the shoulder months.
Month by month
Krabi weather by month
| Month | High | Low | Rain | Verdict | What to expect |
|---|---|---|---|---|---|
| January | 33°C | 22°C | 32 mm | Dry and bright; calm seas for boat trips | |
| February | 34°C | 22°C | 43 mm | Driest stretch with warm days | |
| March | 34°C | 23°C | 98 mm | Hot, with rain building late in the month | |
| April | 34°C | 24°C | 147 mm | Hot and increasingly showery | |
| May | 33°C | 24°C | 172 mm | Wet season begins; seas can turn rough | |
| June | 32°C | 23°C | 193 mm | Frequent rain; check boat operations | |
| July | 32°C | 23°C | 201 mm | Wet; some tours cancelled in rough seas | |
| August | 31°C | 23°C | 266 mm | Very wet; rough seas likely | |
| September | 31°C | 23°C | 275 mm | Heavy rain and rough seas | |
| October | 31°C | 22°C | 324 mm | Wettest month; boat trips unreliable | |
| November | 31°C | 23°C | 180 mm | Rain easing; season starts to open up | |
| December | 31°C | 22°C | 68 mm | Drier and calmer; busy over holidays |
Temperatures and rainfall are long-term monthly averages. Check the forecast a few days before you travel.
Seasons at a glance
Krabi seasons for families and seniors
The easiest months: January, February and December
- January: Dry and bright; calm seas for boat trips
- February: Driest stretch with warm days
- December: Drier and calmer; busy over holidays
Good, with small trade-offs: March
- March: Hot, with rain building late in the month
Possible, with planning: April, May, June, July and November
- April: Hot and increasingly showery
- May: Wet season begins; seas can turn rough
- June: Frequent rain; check boat operations
- July: Wet; some tours cancelled in rough seas
- November: Rain easing; season starts to open up
Best avoided with parents or children: August, September and October
- August: Very wet; rough seas likely
- September: Heavy rain and rough seas
- October: Wettest month; boat trips unreliable
Useful answers
Best time to visit Krabi: FAQs
What is the best month to visit Krabi?
January, February and December are the best months to visit Krabi, with March also good. The best window is December to February, when rain is lowest and the sea is calmest for Railay and island trips; March is also good though hotter. The wettest months run from August to October, with rainfall above 260 mm a month and rougher seas that can cancel boat days. For older travellers, the dry months also make boat boarding and wet landings safer; book flexible tours if you travel in the shoulder months.
Which months should I avoid in Krabi with elderly parents?
August, September and October are the months to avoid with older travellers. Very wet; rough seas likely Heavy rain and rough seas
When does it rain most in Krabi?
October is the wettest month, with about 324 mm of rain on average. The hottest month is March, with average highs around 34°C.