Peak Sun Hours in Al Fayyum, Faiyum, Egypt
- Solar zone
- Zone 5 (exceptional)
- Best month
- June (8.2)
- Worst month
- December (3.5)
- Climate
- Tropical · 22.0°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.79 | 4.11 | 4.61 | 1.45 | 12.1 | 61 |
| Feb | 4.67 | 5.09 | 4.79 | 1.82 | 13.9 | 54 |
| Mar | 5.99 | 6.34 | 5.45 | 2.21 | 17.4 | 48 |
| Apr | 7.02 | 7.41 | 5.71 | 2.62 | 21.4 | 41 |
| May | 7.69 | 8.01 | 6.29 | 2.67 | 25.9 | 37 |
| Jun | 8.19 | 8.31 | 7.58 | 2.29 | 28.9 | 37 |
| Jul | 8.05 | 8.15 | 7.86 | 2.06 | 30.1 | 40 |
| Aug | 7.49 | 7.58 | 7.47 | 1.96 | 30.2 | 43 |
| Sep | 6.54 | 6.64 | 6.75 | 1.84 | 27.8 | 47 |
| Oct | 5.24 | 5.40 | 5.79 | 1.66 | 24.0 | 53 |
| Nov | 4.09 | 4.33 | 5.09 | 1.42 | 18.8 | 58 |
| Dec | 3.52 | 3.79 | 4.62 | 1.31 | 14.0 | 62 |
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 3.52 kWh/m²/day, 0.77 system efficiency.
About solar in Al Fayyum
Al Fayyum, Egypt has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 6.02 kWh/m²/day, a exceptional solar resource by global standards.
The strongest month in Al Fayyum is June (summer) at 8.19 kWh/m²/day, and the weakest is December (winter) at 3.52 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.
Al Fayyum's exceptional solar resource means panels can be sized close to demand rather than heavily oversized, which keeps installation costs down.
FAQ
- What are the peak sun hours in Al Fayyum?
- Al Fayyum averages 6.02 peak sun hours per day annually, ranging from 3.52 in December to 8.19 in June.
- How many solar panels do I need in Al Fayyum?
- Panel count depends on your daily load. At Al Fayyum's annual average of 6.02 kWh/m²/day, a 5 kWh/day load needs roughly 3 × 400 W panels. Use the calculator above for your actual load.
- What size battery do I need in Al Fayyum?
- Sizing against Al Fayyum's worst month (December, 3.52 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 Al Fayyum's solar resource compare globally?
- Al Fayyum sits in solar zone 5 out of 5 (where 5 is strongest) at 6.02 kWh/m²/day — exceptional by global standards. For reference, top-tier desert sites average ~6.5 and high-latitude cities around 2.5 kWh/m²/day.
- How does the wet season affect solar generation in Al Fayyum?
- Al Fayyum's dry-season output peaks at 8.19 kWh/m²/day in June; the wet season drops it to 3.52 in December. That ~78% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Al Fayyum?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like Egypt, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Al Fayyum?
- Al Fayyum swings from 8.19 kWh/m²/day in June (dry) to 3.52 in December (wet) — roughly 78%. Year-round off-grid systems must size against the wet-season minimum.