Marmaris is warmest in July, averaging 37° by day and 23° at night. The wettest month is December with 239 mm, and the year brings about 795 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 13° | 6° | 167 mm | 18° | 9.7 h | Mild |
| February | 14° | 7° | 87 mm | 17° | 10.6 h | Mild |
| March | 15° | 8° | 78 mm | 17° | 11.7 h | Mild |
| April | 20° | 11° | 27 mm | 18° | 13.0 h | Sightseeing |
| May | 26° | 15° | 25 mm | 20° | 14.0 h | Beach weather |
| June | 31° | 19° | 15 mm | 23° | 14.5 h | Beach weather |
| July | 37° | 23° | 3 mm | 26° | 14.3 h | Very hot |
| August | 36° | 24° | 6 mm | 27° | 13.4 h | Beach weather |
| September | 32° | 20° | 15 mm | 26° | 12.2 h | Beach weather |
| October | 27° | 16° | 31 mm | 24° | 11.0 h | Beach weather |
| November | 21° | 12° | 102 mm | 22° | 10.0 h | Sightseeing |
| December | 15° | 8° | 239 mm | 20° | 9.5 h | Rainy season |
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, August, September and October — highs around 30°, nights no colder than 15°, and at most 31 mm of rain in a month. The sea sits at 20–27° then.
Walking the city: April and November — highs of 20–21° and no more than 102 mm of rain a month.
Wet season: December — up to 239 mm in a single month.
Serious heat: In July the average high reaches 37°.