Destination comparison
Koh Samui is the clearer pick — 74 vs 55 on the Atlas Ranger Score, and it leads in 12 of 12 months. Krabi never pulls ahead — it trails in every month. If you're choosing on timing alone, Koh Samui is the safer bet; Krabi makes sense mainly for its own strengths or its short strong window (best in January, 69).
Pick a month — the Atlas Ranger Score for each recomputes live, with the winner for that month.
In June, Koh Samui wins — 75 vs 55 on the Atlas Ranger Score.
Each line is a destination's Atlas Ranger Score across all twelve months — higher is a better time to visit. Where the lines cross is where the better choice flips.
Koh Samui Krabi
Koh Samui leads 12 months (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec) · Krabi leads 0 months
🇹🇭 Koh Samui
Pick Koh Samui if you want beaches and warm water with an easy family trip — it scores highest Jan–Dec and peaks in January (88).
Koh Samui full guide →🇹🇭 Krabi
Pick Krabi if you want beaches and warm water with mountains and hiking — it scores highest around January and peaks in January (69).
Krabi full guide →Compare live hotel prices for either, or open each guide for current flight fares.
🇹🇭 Koh Samui
Hotel links are affiliate links — they cost you nothing and help fund the Atlas Ranger Score.
Krabi (Andaman coast) has the dramatic limestone karsts and is the launchpad for Phi Phi Islands. Samui has the Gulf-coast beaches and easier ferry connections to Koh Phangan and Koh Tao. Pick Krabi for adventure and scenery; pick Samui for relaxation and boutique resorts.
Score it yourself with the month picker above, then dig into each destination's full guide: Koh Samui · Krabi.
Koh Samui is the clearer pick — 74 vs 55 on the Atlas Ranger Score, our 0–100 measure of weather, crowds, value, and timing across the year. It leads most of the year, though the month-by-month chart still shows the other's stronger windows.
Koh Samui averages a higher weather score (70 vs 49). Weather is the biggest input to the score, but both have strong months and weak months; the month-by-month chart shows exactly when.
Krabi has more shoulder- and low-season months, which is where the best value and the fewest crowds are. Travelling outside each destination's peak months is the single biggest way to cut costs.
Often yes — many travellers pair them. The smart move is to time each leg to its own best months. Check each destination's full guide (linked below) for the month-by-month detail, then sequence your trip so each stop lands in its strong window.
Scores come from the Atlas Ranger Score — our transparent 0–100 measure of how good a destination is to visit each month.
