Diyarbakır is warmest in July, averaging 40° by day and 22° at night. The wettest month is March with 112 mm, and the year brings about 450 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 8° | -3° | 68 mm | 9.6 h | Cool |
| February | 10° | -2° | 48 mm | 10.5 h | Cool |
| March | 14° | 2° | 112 mm | 11.7 h | Mild |
| April | 21° | 7° | 48 mm | 13.0 h | Sightseeing |
| May | 26° | 12° | 43 mm | 14.0 h | Beach weather |
| June | 35° | 17° | 3 mm | 14.6 h | Beach weather |
| July | 40° | 22° | 3 mm | 14.4 h | Very hot |
| August | 40° | 23° | 0 mm | 13.5 h | Very hot |
| September | 35° | 18° | 6 mm | 12.2 h | Beach weather |
| October | 27° | 12° | 16 mm | 11.0 h | Beach weather |
| November | 17° | 4° | 63 mm | 9.9 h | Sightseeing |
| December | 11° | -1° | 40 mm | 9.4 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: May, June, September and October — highs around 31°, nights no colder than 12°, and at most 43 mm of rain in a month.
Walking the city: April and November — highs of 17–21° and no more than 63 mm of rain a month.
Serious heat: In July and August the average high reaches 40°.