Meteo Fethiye (Oludeniz) in aprile

Forum posters describe April as a genuine transition month - air temperatures typically 25-30C but evenings still a bit chilly, and the famous white travertine pools themselves running in the low 20sC, not quite warm enough for a comfortable outdoor soak unless using one of the indoor thermal pools. Posters note April is when the site's real 'season' begins - more water is let into the natural limestone terraces than during the quieter winter months, restoring the classic look the site is known for. The separate, much warmer Cleopatra Pool (around 38C) stays a reliable warm-water option regardless of the season. Overall, posters describe the site as well-maintained year-round, but April specifically as the point where conditions clearly start improving toward the busier summer season.

Fethiye's forum describes March as genuinely warm in direct sun but noticeably cold in the shade, since the mountains behind town are still snow-capped this time of year - one poster specifically flagged that contrast as catching visitors off guard. It's considered an excellent month for exploring the Lycian ruins under clear blue skies without summer heat or crowds, but the sea itself is still too cold for swimming and pools aren't heated yet. An odd rainstorm can roll through, so pack layers rather than committing to shorts and a t-shirt all day.

Forum posters describe September as lovely and very popular - not as scorching as July/August but still warm, with sea and pools fully warmed up from the summer and ideal for swimming. By late September, posters report daytime highs still reaching the mid-30sC in some years, bearable rather than oppressive, while nights cool down enough that evening layers become worth packing. Brief rain is possible but posters say it typically passes quickly with conditions returning to hot and sunny shortly after. Overall, forum consensus consistently ranks September among the best months to visit Fethiye specifically for the combination of warm beach weather and thinning summer crowds.