Weather in İzmir

İzmir is in Turkey at 38.4°N. The 2001–2020 NASA POWER daily record describes a Mediterranean pattern: dry summers and wetter winters. August is the warmest month (average 27.7°C, high 33.8°C) and January is the coolest (average 8.5°C, low 5.0°C).

Rain is wet season runs from November to February, inside an annual total of 646 mm. The wettest month is January at 130 mm; the driest is July at 3 mm. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are June, July, and September.

Best months to visit İzmir

The three months with the highest comfort score are June, July, and September: June (24.0°C average, 15 mm, 60% humidity); July (27.2°C average, 3 mm, 53% humidity); September (23.8°C average, 19 mm, 58% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the wet season itself — fewer crowds, greener landscape, heavier rain — aim at November–February instead of the score.

How warm İzmir gets

İzmir has a 19.2°C gap between its coolest monthly average (8.5°C in January) and its warmest (27.7°C in August). That is a northern-hemisphere pattern.

Mean high across all twelve months is 22.3°C and mean low is 12.7°C. These are 20-year grid averages, so a city station can read a few degrees warmer or cooler.

When İzmir gets wet

The wet season in İzmir starts in November and ends in February (November, December, January, and February). January is the core of it at 130 mm. July is the other extreme, with 3 mm.

A rainy day here is a day with at least 1 mm in the NASA POWER series. January averages 11 such days; July averages 1.

Distinctive months in İzmir

The year bottoms out in January. Plan for 5.0°C at night and 11.9°C in the afternoon. April brings 46 mm and 7 rainy days; temperatures run from 10.1°C to 19.8°C. May stands apart from the months beside it: 24.6°C / 14.5°C and 29 mm. June: 29.5°C high, 18.6°C low, 15 mm rain, 60% humidity. July is the driest month, averaging only 3 mm across 1 rainy days. Highs sit near 33.2°C.

Peak heat arrives in August: 33.8°C by day, 21.6°C at night, and 52% humidity. September stands apart from the months beside it: 29.4°C / 18.3°C and 19 mm. October stands apart from the months beside it: 23.9°C / 14.0°C and 50 mm. The wet season opens in November. Expect 82 mm and 8 rainy days, with nights around 10.0°C. In December, İzmir averages 13.5°C by day and 6.4°C at night, with 111 mm of rain.

How İzmir compares inside Turkey

Bursa is about 258 km away: İzmir is 3.3°C warmer than Bursa in its hottest month and a similar annual rainfall (642 mm in Bursa). Bursa’s wettest month is December (90 mm) versus January here.

Istanbul is about 328 km away: İzmir is 2.0°C warmer than Istanbul in its hottest month and a similar annual rainfall (625 mm in Istanbul). Istanbul’s wettest month is December (82 mm) versus January here.

Antalya is about 355 km away: İzmir is 1.6°C cooler than Antalya in its hottest month and 181 mm drier over the year than Antalya. Antalya’s wettest month is January (182 mm) versus January here.