Destination comparison
Koh Samui is the stronger pick overall — 74 vs 59 on the Atlas Ranger Score — leading 10 of 12 months. But Hoi An keeps a window, pulling ahead in Feb (peaking February, 88) — so if those are your dates, it's the better call. Otherwise Koh Samui, peaking January (88).
Pick a month — the Atlas Ranger Score for each recomputes live, with the winner for that month.
In July, Koh Samui wins — 73 vs 51 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.
Hoi An Koh Samui
Hoi An leads 1 month (Feb) · Koh Samui leads 10 months (Jan, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec) · 1 too close to call
🇻🇳 Hoi An
Pick Hoi An if you want temples, history and festivals with beaches and warm water — it leads in Feb and peaks in February (88).
Hoi An full guide →🇹🇭 Koh Samui
Pick Koh Samui if you want beaches and warm water with an easy family trip — it leads in Jan and Apr–Dec and peaks in January (88).
Koh Samui full guide →Compare live hotel prices for either, or open each guide for current flight fares.
🇹🇭 Koh Samui
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Koh Samui is the clearer pick — 74 vs 59 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 53). Weather is the biggest input to the score, but both have strong months and weak months; the month-by-month chart shows exactly when.
Both have similar off-peak windows. The cheapest time for either is its shoulder/low season — outside the peak-weather months when prices spike.
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.
