Thailand's west coast faces the Andaman Sea and follows a seasonal pattern that is the reverse of the Gulf coast — the best riding months are November through April, and the monsoon arrives from May onward. Phuket and Krabi are two of Thailand's most visited destinations — the coastal roads, limestone karst scenery and turquoise water make for some of the most visually spectacular riding in the country.
The Two Seasons of the Andaman Coast
Dry Season — November to April
The dry season is when the Andaman coast is at its absolute finest. Skies are clear, roads are dry, and the coastal roads are bathed in warm sunshine. Temperatures range from 28 to 34°C. November through February are the coolest and most comfortable months.
Monsoon Season — May to October
The southwest monsoon arrives from May onward, bringing the heaviest and most sustained rainfall in Thailand. Unlike the Gulf coast where rain typically arrives in the afternoon, the Andaman monsoon can bring rain at any time of day — requiring more flexibility and patience from riders. The west coast in the monsoon season has a wild, dramatic beauty — the limestone karsts of Krabi look extraordinary under storm clouds, the roads are quiet and accommodation prices drop significantly.
Month by Month
| Month | Conditions for Riding |
|---|---|
| January | Peak dry season. Outstanding riding conditions. One of the best months of the year on the Andaman coast. |
| February | Excellent conditions continuing. Warm, clear and dry. |
| March | Still very good. Temperatures climbing but sea breeze keeps coastal riding comfortable. Crowds thinning. |
| April | Hot and dry. Songkran brings celebrations to the coastal towns. Early morning riding is most comfortable. |
| May | Monsoon arriving. Conditions becoming unpredictable. Rain can arrive at any time — flexibility is key. |
| June | Monsoon in full swing. Heavy rain possible throughout the day. Roads quiet and scenery dramatic. |
| July | Peak monsoon. Heaviest rainfall of the year. Riding possible but requires flexibility and good waterproofs. |
| August | Monsoon continuing. Landscapes lush and dramatic. Quietest time of year on the coast. |
| September | Rain continuing but beginning to ease toward month's end. |
| October | Monsoon tapering off. Conditions improving noticeably toward month's end. |
| November | Dry season returning. Conditions improving rapidly. Excellent month to ride as crowds haven't yet fully returned. |
| December | Peak dry season. Outstanding riding conditions across Phuket and Krabi. |
Best Months to Ride on the West Coast
November through February are the standout months. March and early November are excellent shoulder season options — fewer crowds, still excellent conditions, noticeably better accommodation prices.
Making the Most of the Monsoon Season
The Andaman monsoon requires a different mindset — rain can arrive at any time rather than following a predictable afternoon pattern. Start each day early, check the sky before you ride, and always carry a waterproof jacket within easy reach. The rewards are real — accommodation prices drop significantly, the famous beaches and viewpoints are quiet, and the limestone karst scenery of Krabi under monsoon clouds is genuinely dramatic and beautiful. On heavier rain days, embrace the slower pace — Krabi Town and Phuket's old town are excellent places to spend a morning or afternoon when riding is not the priority.
Planning The Beach Run from Phuket to Krabi via Koh Samui?
Check our route guide for the full details on southern Thailand's finest coastal loop.
The Beach Run Route Guide →