Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 11h per day, so bright days are a strong part of the month. Rainfall averages 15mm, which is relatively low for holiday planning.
Monthly averages
Temp
29°C
Rain
15mm
Sun
11h
Sea
23°C
Weather score
85
Very good
Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 15mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Izmir, Turkiye with nearby places by weather score, rain, sun, temperature, and swim conditions.
September29°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
September15mm average rain
September is one of Izmir's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsApril to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September11 hours average sun
September sits close to Izmir's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
September23°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJune to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
September85 weather score
September is one of Izmir's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.