İzmir is warmest in August, averaging 35° by day and 22° at night. The wettest month is December with 140 mm, and the year brings about 574 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 13° | 5° | 105 mm | 16° | 9.6 h | Mild |
| February | 14° | 6° | 70 mm | 16° | 10.5 h | Mild |
| March | 16° | 8° | 68 mm | 15° | 11.7 h | Mild |
| April | 20° | 10° | 42 mm | 17° | 13.0 h | Sightseeing |
| May | 25° | 15° | 22 mm | 20° | 14.1 h | Beach weather |
| June | 30° | 19° | 27 mm | 23° | 14.7 h | Beach weather |
| July | 35° | 21° | 3 mm | 25° | 14.4 h | Beach weather |
| August | 35° | 22° | 3 mm | 25° | 13.5 h | Beach weather |
| September | 31° | 19° | 9 mm | 24° | 12.2 h | Beach weather |
| October | 25° | 14° | 16 mm | 21° | 11.0 h | Beach weather |
| November | 20° | 10° | 69 mm | 19° | 9.9 h | Sightseeing |
| December | 16° | 6° | 140 mm | 18° | 9.3 h | Mild |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: May, June, July, August, September and October — highs around 30°, nights no colder than 14°, and at most 27 mm of rain in a month. The sea sits at 20–25° then.
Walking the city: April and November — highs of 20–20° and no more than 69 mm of rain a month.