Peak Sun Hours in Gombe, Gombe State, Nigeria
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.3)
- Worst month
- August (4.9)
- Climate
- Tropical · 26.9°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 5.81 | 6.02 | 4.63 | 2.44 | 23.9 | 21 |
| Feb | 6.02 | 6.31 | 3.83 | 2.90 | 27.6 | 17 |
| Mar | 6.31 | 6.77 | 3.42 | 3.17 | 30.5 | 19 |
| Apr | 6.34 | 7.02 | 3.51 | 3.09 | 31.4 | 41 |
| May | 6.14 | 7.04 | 3.69 | 2.80 | 30.0 | 59 |
| Jun | 5.82 | 6.84 | 3.37 | 2.73 | 27.8 | 70 |
| Jul | 5.35 | 6.93 | 2.86 | 2.58 | 26.1 | 78 |
| Aug | 4.93 | 7.06 | 2.36 | 2.52 | 24.9 | 85 |
| Sep | 5.49 | 6.91 | 3.13 | 2.56 | 25.3 | 84 |
| Oct | 5.94 | 6.59 | 4.24 | 2.45 | 26.0 | 73 |
| Nov | 6.02 | 6.29 | 5.41 | 2.14 | 25.2 | 45 |
| Dec | 5.78 | 5.95 | 5.46 | 2.05 | 23.7 | 29 |
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 4.93 kWh/m²/day, 0.77 system efficiency.
About solar in Gombe
Gombe, Nigeria has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 5.83 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Gombe is April (spring) at 6.34 kWh/m²/day, and the weakest is August (summer) at 4.93 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.
Gombe'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 Gombe?
- Gombe averages 5.83 peak sun hours per day annually, ranging from 4.93 in August to 6.34 in April.
- How many solar panels do I need in Gombe?
- Panel count depends on your daily load. At Gombe's annual average of 5.83 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 Gombe?
- Sizing against Gombe's worst month (August, 4.93 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 Gombe's solar resource compare globally?
- Gombe sits in solar zone 4 out of 5 (where 5 is strongest) at 5.83 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 Gombe?
- Gombe's dry-season output peaks at 6.34 kWh/m²/day in April; the wet season drops it to 4.93 in August. That ~24% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Gombe?
- 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 Gombe?
- Gombe swings from 6.34 kWh/m²/day in April (dry) to 4.93 in August (wet) — roughly 24%. Year-round off-grid systems must size against the wet-season minimum.