Peak Sun Hours in Port Said, Port Said, Egypt
- Solar zone
- Zone 4 (excellent)
- Best month
- June (7.7)
- Worst month
- December (2.8)
- Climate
- Temperate · 21.3°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.07 | 3.74 | 3.49 | 1.41 | 16.1 | 69 |
| Feb | 3.86 | 4.69 | 3.68 | 1.76 | 15.9 | 72 |
| Mar | 5.17 | 5.93 | 4.47 | 2.18 | 16.8 | 75 |
| Apr | 6.30 | 7.01 | 4.96 | 2.58 | 18.3 | 77 |
| May | 7.15 | 7.63 | 5.74 | 2.66 | 21.0 | 80 |
| Jun | 7.68 | 7.89 | 6.82 | 2.41 | 24.0 | 81 |
| Jul | 7.46 | 7.65 | 6.65 | 2.35 | 26.0 | 81 |
| Aug | 6.89 | 7.11 | 6.32 | 2.21 | 26.9 | 79 |
| Sep | 5.91 | 6.17 | 5.76 | 1.98 | 26.3 | 75 |
| Oct | 4.56 | 4.98 | 4.73 | 1.74 | 24.6 | 73 |
| Nov | 3.38 | 3.92 | 3.88 | 1.46 | 21.8 | 69 |
| Dec | 2.79 | 3.40 | 3.39 | 1.28 | 18.4 | 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 2.79 kWh/m²/day, 0.77 system efficiency.
About solar in Port Said
Port Said, Egypt has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 5.35 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Port Said is June (summer) at 7.68 kWh/m²/day, and the weakest is December (winter) at 2.79 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.
Port Said'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 Port Said?
- Port Said averages 5.35 peak sun hours per day annually, ranging from 2.79 in December to 7.68 in June.
- How many solar panels do I need in Port Said?
- Panel count depends on your daily load. At Port Said's annual average of 5.35 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 Port Said?
- Sizing against Port Said's worst month (December, 2.79 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 Port Said's solar resource compare globally?
- Port Said sits in solar zone 4 out of 5 (where 5 is strongest) at 5.35 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 Port Said?
- Port Said's worst month (December) delivers 2.79 kWh/m²/day — about 36% of the summer peak of 7.68. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Port Said's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Port Said's 5.35 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Port Said?
- At Port Said's latitude (31°), a fixed tilt near 31° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.