21 Day Weather Antalya
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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Leeds Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Antalya’s 21-day outlook shows generally warm, sunny weather with a slight cooling trend in the second week. The live forecast above gives the day-by-day picture, but across the full three weeks you can expect highs around 28°C in late September, dropping to 24–26°C by mid-October. Nights remain mild, around 15–18°C.
How reliable is a 21-day Antalya forecast?
Long-range forecasts for 21 days give a broad trend rather than exact daily conditions. The Met Office suggests that beyond 10–15 days confidence drops. For the most accurate planning, check the 15-day detail in the live forecast above, then revisit closer to your travel date. The pattern for Antalya in autumn is typically stable: plenty of sun, low rain risk and a gentle drop in temperature after the first week.
What should I pack for a three-week trip to Antalya?
Daytime temperatures stay warm enough for shorts and T‑shirts in the first two weeks, but you’ll want a light jacket or jumper for evenings from the second week onward. Even in the third week, the sea is still swimmable at around 22–24°C. A couple of long-sleeve tops and a waterproof layer for any stray shower cover you for all 21 days.
Is the 21‑day forecast from the Met Office accurate?
The Met Office’s long‑range outlook for Antalya is good for spotting general trends, but day‑specific accuracy drops beyond two weeks. For a 21‑day window, treat it as a reliable guide to temperature bands and weather type, not exact daily rain slots. Use the live forecast above as your baseline.
Does the 21‑day forecast include night temperatures?
Yes, most 21‑day forecasts show both daytime highs and overnight lows. In Antalya during September–October expect lows of 15–18°C, so you’ll need a light layer for evenings. The live forecast above displays this for each day.
How does AccuWeather’s 21‑day forecast compare?
AccuWeather uses a proprietary “minute‑cast” model that often gives more granular hour‑by‑hour detail. For the 21‑day Antalya outlook, the Met Office and BBC both provide a solid broad picture. We recommend cross‑referencing the live forecast above with the Met Office’s 21‑day chart for confidence.
Sources
For more on Turkey’s coast, see our Antalya Weather page. If you’re comparing other Mediterranean spots, check Cyprus Weather or Crete Weather. For wider UK coverage, visit the Leeds Wire weather hub.
