Weather in Diyarbakır in July
Turkey · 20-year averages, July
The month to avoid. Of the twelve, July is the one to avoid. Daytime highs average 40.4 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
July ranks 11 of 12 — near the bottom of Diyarbakır's year. October is the month that works, and the swing between the two is 59 points, which is a different holiday rather than a slightly better one.
Rain falls on only 1 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.
What the averages hide
Averages flatten a month, and this one hides a few things: 30 days of the month clear 35 °C — that is not a heatwave, it is the month; the day swings 17.3 °C from low to high, which means one bag has to cover both. Across the twenty years measured, the hottest July day reached 46.3 °C and the coldest night fell to 15.7 °C.
July is dependably dry, and that reliability is the point: across the twenty years measured, the wettest July on record still only managed 7 mm, and the driest managed 0 mm. There is no meaningful variability to plan around, which makes this one of the few months anywhere that you can build a fixed outdoor itinerary against without a fallback. The wettest single day in twenty years of Julys brought 3 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.
Wind is light at 7 km/h, so the temperature on the page is close to the temperature on your skin, and the air is dry at 24% humidity, which makes the heat far more bearable than the same figure somewhere humid — and dehydrates you faster than you expect.
How July sits in the year
Temperatures hold steady either side: 35.2 °C in June, 40.4 here, 40.1 in August. Nothing about the timing within the month matters much.
Daylight in July
July is at or near the longest days of Diyarbakır's year: 14.6 hours of daylight, losing 0.6 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
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 July itself the daily swing is 17.3 °C, so mornings and afternoons need different clothes.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
July in Diyarbakır versus nearby
If Diyarbakır is one option among several, the nearby comparison is worth making. Gaziantep is a better bet in July — 3.2 °C cooler, the same number of rain days. Kayseri is a better bet in July — 8.2 °C cooler, 1 day more rain.
So: July is a compromise. October is 59 points better and is what Diyarbakır is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
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 July.
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