Peak Sun Hours in Idkū, Beheira, Egypt
- Solar zone
- Zone 4 (excellent)
- Best month
- June (7.8)
- Worst month
- December (2.7)
- Climate
- Temperate · 21.1°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.02 | 3.76 | 3.40 | 1.43 | 15.9 | 70 |
| Feb | 3.85 | 4.73 | 3.57 | 1.84 | 15.6 | 71 |
| Mar | 5.25 | 6.00 | 4.57 | 2.26 | 16.5 | 73 |
| Apr | 6.38 | 7.09 | 5.01 | 2.74 | 18.2 | 74 |
| May | 7.23 | 7.75 | 5.85 | 2.82 | 21.0 | 76 |
| Jun | 7.79 | 8.04 | 7.08 | 2.50 | 24.0 | 78 |
| Jul | 7.68 | 7.88 | 7.25 | 2.33 | 26.0 | 78 |
| Aug | 7.01 | 7.24 | 6.57 | 2.30 | 26.9 | 77 |
| Sep | 6.00 | 6.29 | 5.82 | 2.13 | 26.0 | 73 |
| Oct | 4.60 | 5.06 | 4.70 | 1.86 | 23.9 | 72 |
| Nov | 3.40 | 3.97 | 3.89 | 1.50 | 21.1 | 70 |
| Dec | 2.74 | 3.43 | 3.24 | 1.32 | 17.9 | 70 |
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 2.74 kWh/m²/day, 0.77 system efficiency.
About solar in Idkū
Idkū, Egypt has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 5.41 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Idkū is June (summer) at 7.79 kWh/m²/day, and the weakest is December (winter) at 2.74 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.
Idkū'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 Idkū?
- Idkū averages 5.41 peak sun hours per day annually, ranging from 2.74 in December to 7.79 in June.
- How many solar panels do I need in Idkū?
- Panel count depends on your daily load. At Idkū's annual average of 5.41 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 Idkū?
- Sizing against Idkū's worst month (December, 2.74 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 Idkū's solar resource compare globally?
- Idkū sits in solar zone 4 out of 5 (where 5 is strongest) at 5.41 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 Idkū?
- Idkū's worst month (December) delivers 2.74 kWh/m²/day — about 35% of the summer peak of 7.79. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Idkū's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Idkū's 5.41 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Idkū?
- At Idkū's latitude (31°), a fixed tilt near 31° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.