Destination comparison
Koh Samui is the clearer pick — 74 vs 27 on the Atlas Ranger Score, and it leads all 12 months. Iceland never pulls ahead, with its own best stretch in July (49). On timing alone Koh Samui is the safer bet; Iceland earns the trip on its own character, not its calendar.
Pick a month — the Atlas Ranger Score for each recomputes live, with the winner for that month.
In July, Koh Samui wins — 73 vs 49 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.
Iceland Koh Samui
Iceland leads 0 months · Koh Samui leads 12 months (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec)
🇮🇸 Iceland
Pick Iceland if you want the northern lights with mountains and hiking — its strongest stretch is around July (49).
Iceland full guide →🇹🇭 Koh Samui
Pick Koh Samui if you want beaches and warm water with an easy family trip — it leads all year 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 27 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 19). Weather is the biggest input to the score, but both have strong months and weak months; the month-by-month chart shows exactly when.
Iceland 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.
