Weather in Diyarbakır in August
Turkey · 20-year averages, August
The month to avoid. August is the month most people should skip in Diyarbakır. Daytime highs average 40.1 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.
August ranks 12 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 is not a factor worth planning around this month. 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: 31 days of the month clear 35 °C — that is not a heatwave, it is the month; the day swings 16.8 °C from low to high, which means one bag has to cover both. Across the twenty years measured, the hottest August day reached 45.5 °C and the coldest night fell to 17.1 °C.
August is dependably dry, and that reliability is the point: across the twenty years measured, the wettest August on record still only managed 2 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 Augusts brought 2 mm. Rain simply is not the variable that decides this trip — heat, crowds and cost are.
Wind is light at 6.5 km/h, so the temperature on the page is close to the temperature on your skin, and the air is dry at 23% humidity, which makes the heat far more bearable than the same figure somewhere humid — and dehydrates you faster than you expect.
How August sits in the year
Temperatures hold steady either side: 40.4 °C in July, 40.1 here, 34.6 in September. Nothing about the timing within the month matters much.
Daylight in August
13.7 hours of daylight, losing 1 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 August itself the daily swing is 16.8 °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.
August in Diyarbakır versus nearby
If Diyarbakır is one option among several, the nearby comparison is worth making. Gaziantep is a better bet in August — 3.1 °C cooler, 1 day more rain. Kayseri is a better bet in August — 7.2 °C cooler, 1 day more rain.
So: August 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 August.
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