Peak Sun Hours in Gaziantep, Gaziantep, Turkey
- Solar zone
- Zone 3 (good)
- Best month
- July (8.1)
- Worst month
- December (2.0)
- Climate
- Temperate · 15.6°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 2.02 | 3.19 | 2.80 | 0.93 | 2.4 | 80 |
| Feb | 2.79 | 4.27 | 3.09 | 1.30 | 4.5 | 78 |
| Mar | 4.20 | 5.71 | 4.06 | 1.82 | 8.9 | 72 |
| Apr | 5.53 | 7.03 | 4.53 | 2.42 | 13.5 | 66 |
| May | 6.73 | 7.92 | 5.71 | 2.56 | 18.9 | 59 |
| Jun | 8.00 | 8.47 | 8.37 | 2.02 | 24.7 | 45 |
| Jul | 8.06 | 8.25 | 8.97 | 1.73 | 29.1 | 35 |
| Aug | 7.14 | 7.35 | 7.98 | 1.68 | 28.9 | 38 |
| Sep | 5.83 | 6.12 | 6.92 | 1.53 | 24.5 | 41 |
| Oct | 3.98 | 4.58 | 4.80 | 1.43 | 18.1 | 50 |
| Nov | 2.73 | 3.43 | 4.12 | 1.01 | 9.7 | 64 |
| Dec | 1.98 | 2.85 | 3.19 | 0.81 | 4.2 | 75 |
GHI, Clear-sky, DNI, DHI in kWh/m²/day. Data: NASA POWER climatology (long-term monthly averages).
Off-grid calculator
Add appliances
- Add an appliance to size a system.
Sizing
- Daily load
- 0.00 kWh
- Panel wattage
- 0 W
- Panel count (400W modules)
- 0
- Battery bank
- 0.0 kWh
Sizing against worst-month PSH of 1.98 kWh/m²/day, 0.77 system efficiency.
About solar in Gaziantep
Gaziantep, Turkey has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 4.92 kWh/m²/day, a good solar resource by global standards.
The strongest month in Gaziantep is July (summer) at 8.06 kWh/m²/day, and the weakest is December (winter) at 1.98 kWh/m²/day. When sizing a year-round off-grid system, it's standard practice to design against the December value rather than the annual average — otherwise the battery bank runs low during the darkest weeks.
Gaziantep's solar conditions are well within the range where off-grid PV is a straightforward engineering exercise with standard-sized arrays and lithium batteries.
FAQ
- What are the peak sun hours in Gaziantep?
- Gaziantep averages 4.92 peak sun hours per day annually, ranging from 1.98 in December to 8.06 in July.
- How many solar panels do I need in Gaziantep?
- Panel count depends on your daily load. At Gaziantep's annual average of 4.92 kWh/m²/day, a 5 kWh/day load needs roughly 4 × 400 W panels. Use the calculator above for your actual load.
- What size battery do I need in Gaziantep?
- Sizing against Gaziantep's worst month (December, 1.98 kWh/m²/day) with 2 days of autonomy at 80% depth of discharge, a 5 kWh/day load needs about a 12.5 kWh battery bank.
- How does Gaziantep's solar resource compare globally?
- Gaziantep sits in solar zone 3 out of 5 (where 5 is strongest) at 4.92 kWh/m²/day — good by global standards. For reference, top-tier desert sites average ~6.5 and high-latitude cities around 2.5 kWh/m²/day.
- How much does winter reduce solar output in Gaziantep?
- Gaziantep's worst month (December) delivers 1.98 kWh/m²/day — about 25% of the summer peak of 8.06. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Gaziantep's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Gaziantep's 4.92 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Gaziantep?
- At Gaziantep's latitude (37°), a fixed tilt near 37° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.