Peak Sun Hours in Kaduna, Kaduna State, Nigeria
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.2)
- Worst month
- August (4.6)
- Climate
- Tropical · 24.4°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 5.69 | 5.86 | 4.48 | 2.43 | 21.3 | 36 |
| Feb | 5.88 | 6.14 | 3.63 | 2.92 | 24.8 | 31 |
| Mar | 6.17 | 6.60 | 3.36 | 3.10 | 27.5 | 34 |
| Apr | 6.21 | 6.94 | 3.34 | 3.06 | 27.9 | 56 |
| May | 5.93 | 6.99 | 3.23 | 2.87 | 26.6 | 73 |
| Jun | 5.49 | 6.84 | 2.86 | 2.71 | 25.1 | 80 |
| Jul | 4.99 | 6.97 | 2.25 | 2.63 | 24.0 | 84 |
| Aug | 4.56 | 7.10 | 1.80 | 2.51 | 23.4 | 87 |
| Sep | 5.26 | 6.94 | 2.66 | 2.61 | 23.9 | 85 |
| Oct | 5.73 | 6.58 | 3.81 | 2.52 | 24.3 | 76 |
| Nov | 5.97 | 6.22 | 5.42 | 2.08 | 22.5 | 57 |
| Dec | 5.70 | 5.86 | 5.34 | 2.03 | 20.9 | 45 |
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 4.56 kWh/m²/day, 0.77 system efficiency.
About solar in Kaduna
Kaduna, Nigeria has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 5.63 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Kaduna is April (spring) at 6.21 kWh/m²/day, and the weakest is August (summer) at 4.56 kWh/m²/day. When sizing a year-round off-grid system, it's standard practice to design against the August value rather than the annual average — otherwise the battery bank runs low during the darkest weeks.
Kaduna'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 Kaduna?
- Kaduna averages 5.63 peak sun hours per day annually, ranging from 4.56 in August to 6.21 in April.
- How many solar panels do I need in Kaduna?
- Panel count depends on your daily load. At Kaduna's annual average of 5.63 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 Kaduna?
- Sizing against Kaduna's worst month (August, 4.56 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 Kaduna's solar resource compare globally?
- Kaduna sits in solar zone 4 out of 5 (where 5 is strongest) at 5.63 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 does the wet season affect solar generation in Kaduna?
- Kaduna's dry-season output peaks at 6.21 kWh/m²/day in April; the wet season drops it to 4.56 in August. That ~29% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Kaduna?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like Nigeria, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Kaduna?
- Kaduna swings from 6.21 kWh/m²/day in April (dry) to 4.56 in August (wet) — roughly 29%. Year-round off-grid systems must size against the wet-season minimum.