Weather in Antalya in September

A hard month. September asks something of you. Go in knowing what. Daytime highs average 34.5 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.

September ranks 10 of 12 — near the bottom of Antalya's year. April is the month that works, and the swing between the two is 56 points, which is a different holiday rather than a slightly better one.

Rain falls on only 3 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.

What the averages hide

Averages flatten a month, and this one hides a few things: 14 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest September day reached 43.1 °C and the coldest night fell to 14.2 °C, and the wettest single day dropped 55 mm — roughly 220% of the month's rain in one day.

This is the volatile part. September rainfall has ranged from 0 mm to 101 mm across the twenty years measured — a 101 mm spread around an average of 25 mm. The average is real but almost no individual September looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 7.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 49%.

How September sits in the year

The month is on the way down: 4.1 °C cooler than August, with October dropping another 6.1 °C. The first week and the last are not the same trip.

Daylight in September

12.5 hours of daylight, losing 1.2 hours across the month. That is between Antalya's extremes of 14.7 and 9.7 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 27.5 °C in September — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Antalya versus nearby

If Antalya is one option among several, the nearby comparison is worth making. Konya is a better bet in September — 6.7 °C cooler, 1 day more rain. Ródos is a better bet in September — 5.6 °C cooler, the same number of rain days.

So: September is a compromise. April is 38 points better and is what Antalya is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Antalya

See all twelve months in Antalya, or where else to go in September.