Peak Sun Hours in Baguio, Cordillera, Philippines
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.3)
- Worst month
- December (4.3)
- Climate
- Tropical · 23.0°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.67 | 5.59 | 4.88 | 1.70 | 20.7 | 83 |
| Feb | 5.33 | 6.32 | 5.12 | 1.85 | 21.4 | 81 |
| Mar | 5.97 | 6.96 | 5.03 | 2.15 | 23.0 | 78 |
| Apr | 6.31 | 7.36 | 4.98 | 2.29 | 24.7 | 76 |
| May | 5.79 | 7.49 | 3.98 | 2.39 | 24.7 | 81 |
| Jun | 5.40 | 7.46 | 3.39 | 2.46 | 24.1 | 87 |
| Jul | 4.92 | 7.42 | 2.66 | 2.47 | 23.5 | 89 |
| Aug | 4.53 | 7.31 | 2.09 | 2.45 | 23.2 | 92 |
| Sep | 4.84 | 6.98 | 2.82 | 2.38 | 23.2 | 91 |
| Oct | 4.87 | 6.39 | 3.77 | 2.09 | 23.1 | 87 |
| Nov | 4.51 | 5.71 | 4.20 | 1.78 | 22.7 | 85 |
| Dec | 4.28 | 5.31 | 4.34 | 1.68 | 21.6 | 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 4.28 kWh/m²/day, 0.77 system efficiency.
About solar in Baguio
Baguio, Philippines has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 5.12 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Baguio is April (spring) at 6.31 kWh/m²/day, and the weakest is December (winter) at 4.28 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.
Baguio'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 Baguio?
- Baguio averages 5.12 peak sun hours per day annually, ranging from 4.28 in December to 6.31 in April.
- How many solar panels do I need in Baguio?
- Panel count depends on your daily load. At Baguio's annual average of 5.12 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 Baguio?
- Sizing against Baguio's worst month (December, 4.28 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 Baguio's solar resource compare globally?
- Baguio sits in solar zone 4 out of 5 (where 5 is strongest) at 5.12 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 Baguio?
- Baguio's dry-season output peaks at 6.31 kWh/m²/day in April; the wet season drops it to 4.28 in December. That ~40% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Baguio?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like Philippines, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Baguio?
- Baguio swings from 6.31 kWh/m²/day in April (dry) to 4.28 in December (wet) — roughly 40%. Year-round off-grid systems must size against the wet-season minimum.