Peak Sun Hours in Damietta, Damietta, Egypt
- Solar zone
- Zone 4 (excellent)
- Best month
- June (7.7)
- Worst month
- December (2.8)
- Climate
- Temperate · 21.6°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.04 | 3.75 | 3.36 | 1.45 | 15.4 | 68 |
| Feb | 3.82 | 4.72 | 3.47 | 1.85 | 15.5 | 69 |
| Mar | 5.15 | 5.97 | 4.28 | 2.32 | 16.9 | 69 |
| Apr | 6.26 | 7.04 | 4.72 | 2.78 | 18.9 | 69 |
| May | 7.13 | 7.68 | 5.56 | 2.85 | 22.1 | 69 |
| Jun | 7.71 | 7.98 | 6.73 | 2.58 | 25.1 | 69 |
| Jul | 7.54 | 7.79 | 6.67 | 2.53 | 27.2 | 69 |
| Aug | 6.89 | 7.19 | 6.05 | 2.48 | 27.8 | 69 |
| Sep | 5.87 | 6.23 | 5.33 | 2.28 | 26.6 | 68 |
| Oct | 4.50 | 5.01 | 4.33 | 1.94 | 24.4 | 68 |
| Nov | 3.35 | 3.94 | 3.68 | 1.54 | 21.2 | 66 |
| Dec | 2.76 | 3.41 | 3.22 | 1.34 | 17.5 | 68 |
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 2.76 kWh/m²/day, 0.77 system efficiency.
About solar in Damietta
Damietta, Egypt has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 5.34 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Damietta is June (summer) at 7.71 kWh/m²/day, and the weakest is December (winter) at 2.76 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.
Damietta'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 Damietta?
- Damietta averages 5.34 peak sun hours per day annually, ranging from 2.76 in December to 7.71 in June.
- How many solar panels do I need in Damietta?
- Panel count depends on your daily load. At Damietta's annual average of 5.34 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 Damietta?
- Sizing against Damietta's worst month (December, 2.76 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 Damietta's solar resource compare globally?
- Damietta sits in solar zone 4 out of 5 (where 5 is strongest) at 5.34 kWh/m²/day — excellent 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 Damietta?
- Damietta's worst month (December) delivers 2.76 kWh/m²/day — about 36% of the summer peak of 7.71. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Damietta's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Damietta's 5.34 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Damietta?
- At Damietta's latitude (31°), a fixed tilt near 31° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.