Fethiye vs Istanbul: which is better, month by month
Fethiye beats Istanbul in 10 of 12 months — its lead peaks in July (92 vs 78) — while Istanbul wins May; they are within 3 points in April.
Each place is scored under the lens that suits its type — they are different kinds of destination, so the scores are each place at its own best. Comfort is SeasonMap's 0–100 estimate from ERA5 climate normals, not a forecast.
Fethiye vs Istanbul — all 12 months
A month is a tie when the two are within 3 points. The widest gap is July (92 vs 78). Tap a month for that month's temperature, rain, humidity and air quality side by side.