Peak Sun Hours in Cagayan de Oro, Northern Mindanao, Philippines
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.0)
- Worst month
- January (4.2)
- Climate
- Equatorial · 27.1°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.20 | 6.32 | 2.87 | 2.11 | 26.1 | 85 |
| Feb | 4.88 | 6.86 | 3.48 | 2.25 | 26.2 | 83 |
| Mar | 5.57 | 7.31 | 4.08 | 2.36 | 26.9 | 79 |
| Apr | 5.99 | 7.41 | 4.49 | 2.40 | 28.0 | 76 |
| May | 5.47 | 7.16 | 3.72 | 2.46 | 28.1 | 79 |
| Jun | 5.05 | 6.99 | 3.01 | 2.51 | 27.5 | 82 |
| Jul | 4.98 | 6.99 | 2.74 | 2.57 | 27.1 | 83 |
| Aug | 5.17 | 7.08 | 2.83 | 2.63 | 27.1 | 82 |
| Sep | 5.14 | 7.05 | 2.84 | 2.61 | 27.0 | 83 |
| Oct | 5.02 | 6.78 | 3.13 | 2.45 | 27.1 | 83 |
| Nov | 4.69 | 6.42 | 3.47 | 2.19 | 27.1 | 83 |
| Dec | 4.36 | 6.12 | 3.31 | 2.10 | 26.8 | 85 |
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 4.20 kWh/m²/day, 0.77 system efficiency.
About solar in Cagayan de Oro
Cagayan de Oro, Philippines sits near the equator, where day length is stable year-round and the sun passes close to overhead. Its annual peak sun hours average 5.04 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Cagayan de Oro is April (spring) at 5.99 kWh/m²/day, and the weakest is January (winter) at 4.2 kWh/m²/day. When sizing a year-round off-grid system, it's standard practice to design against the January value rather than the annual average — otherwise the battery bank runs low during the darkest weeks.
Cagayan de Oro'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 Cagayan de Oro?
- Cagayan de Oro averages 5.04 peak sun hours per day annually, ranging from 4.2 in January to 5.99 in April.
- How many solar panels do I need in Cagayan de Oro?
- Panel count depends on your daily load. At Cagayan de Oro's annual average of 5.04 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 Cagayan de Oro?
- Sizing against Cagayan de Oro's worst month (January, 4.2 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 Cagayan de Oro's solar resource compare globally?
- Cagayan de Oro sits in solar zone 4 out of 5 (where 5 is strongest) at 5.04 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.
- Why doesn't solar output vary much by month in Cagayan de Oro?
- Near the equator, day length is nearly constant year-round and the sun stays close to overhead. In Cagayan de Oro, monthly PSH ranges just from 4.2 to 5.99 kWh/m²/day — variance is driven by wet-season cloud cover, not day length.
- What tilt angle works best for panels in Cagayan de Oro?
- At latitude 8°, panels in Cagayan de Oro work best at a low tilt (roughly 8°) or horizontal. Tracking mounts add little benefit this close to the equator.
- How does the wet season affect solar output in Cagayan de Oro?
- Equatorial wet seasons reduce output through cloud cover, not day length. Cagayan de Oro's worst month (January) still delivers 4.2 kWh/m²/day — design against this value for reliable year-round off-grid use.