Weather in Diyarbakır in May
Turkey · 20-year averages, May
Prime time. May is about as good as Diyarbakır gets. Highs average 26.9 °C, lows 12.5 °C, and rain falls on 8 days — nothing in the month is working against you.
May ranks 2 of 12 in Diyarbakır. Only October scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: 8 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest May day reached 38 °C and the coldest night fell to 4.7 °C, and the wettest single day dropped 34 mm — roughly 71% of the month's rain in one day.
May is moderately variable: 12 mm in the driest year against 109 mm in the wettest, around an average of 48 mm. Roughly two Mays in three land near that average, and the third does something else entirely.
Wind is light at 5.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 57%.
How May sits in the year
The month is on the way up: 6.3 °C warmer than April, and June adds another 8.3 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short. Rain is the thing that moves: June brings 5 days less of it, so pushing the dates later buys drier weather.
Daylight in May
14.2 hours of daylight, gaining 0.9 hours across the month. That is between Diyarbakır's extremes of 14.8 and 9.6 hours, so days are long enough not to constrain the plan.
An inland climate
Diyarbakır has no sea to moderate it, and it shows: 42.5 °C separates the hottest afternoon of the year from the coldest night. That is a genuinely continental range, and it means summer and winter here are barely the same place. Within May itself the daily swing is 14.4 °C, so mornings and afternoons need different clothes.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
May in Diyarbakır versus nearby
If Diyarbakır is one option among several, the nearby comparison is worth making. Gaziantep is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Kayseri is close enough to be a coin toss — 4.3 °C cooler, 3 days more rain.
So: May is effectively as good as it gets here — 3 points behind October, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Diyarbakır
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 7.4 | -2.1 | 11 | 66 | 79 | 9.8 | 36 |
| February | 10.1 | -0.6 | 10 | 70 | 77 | 10.8 | 49 |
| March | 15.5 | 3.2 | 10 | 65 | 71 | 11.9 | 67 |
| April | 20.6 | 7.5 | 11 | 65 | 66 | 13.1 | 80 |
| May | 26.9 | 12.5 | 8 | 48 | 57 | 14.2 | 86 |
| June | 35.2 | 18.1 | 3 | 11 | 37 | 14.8 | 48 |
| July | 40.4 | 23.1 | 1 | 2 | 24 | 14.6 | 30 |
| August | 40.1 | 23.4 | 0 | 1 | 23 | 13.7 | 30 |
| September | 34.6 | 18.7 | 1 | 9 | 27 | 12.5 | 48 |
| October | 26.5 | 12.7 | 6 | 39 | 44 | 11.3 | 89 |
| November | 17 | 4.7 | 7 | 51 | 62 | 10.2 | 76 |
| December | 10 | -0.2 | 10 | 74 | 75 | 9.6 | 48 |
See all twelve months in Diyarbakır, or where else to go in May.
Planning the rest of the trip
- Flight time to Diyarbakır how long you are actually in the air
- Diyarbakır time zone and the difference from home
- Days until your trip count down to the departure date