Peak Sun Hours in Xuân Lộc, Dong Nai, Vietnam
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.4)
- Worst month
- December (4.6)
- Climate
- Tropical · 26.9°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 5.14 | 6.02 | 4.68 | 2.00 | 25.8 | 68 |
| Feb | 6.07 | 6.59 | 5.68 | 1.99 | 27.1 | 62 |
| Mar | 6.40 | 7.00 | 5.53 | 2.15 | 28.7 | 62 |
| Apr | 6.43 | 7.20 | 5.28 | 2.26 | 29.6 | 64 |
| May | 5.67 | 7.08 | 3.88 | 2.44 | 28.6 | 76 |
| Jun | 5.14 | 6.94 | 2.97 | 2.51 | 27.0 | 85 |
| Jul | 5.20 | 6.95 | 2.93 | 2.57 | 26.3 | 87 |
| Aug | 5.25 | 7.02 | 2.91 | 2.60 | 26.2 | 88 |
| Sep | 5.13 | 6.89 | 2.78 | 2.58 | 26.1 | 88 |
| Oct | 4.99 | 6.55 | 3.22 | 2.35 | 26.0 | 87 |
| Nov | 4.86 | 6.11 | 3.89 | 2.10 | 25.9 | 83 |
| Dec | 4.63 | 5.81 | 3.85 | 2.08 | 25.5 | 76 |
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 4.63 kWh/m²/day, 0.77 system efficiency.
About solar in Xuân Lộc
Xuân Lộc, Vietnam has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 5.41 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Xuân Lộc is April (spring) at 6.43 kWh/m²/day, and the weakest is December (winter) at 4.63 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.
Xuân Lộc'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 Xuân Lộc?
- Xuân Lộc averages 5.41 peak sun hours per day annually, ranging from 4.63 in December to 6.43 in April.
- How many solar panels do I need in Xuân Lộc?
- Panel count depends on your daily load. At Xuân Lộc's annual average of 5.41 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 Xuân Lộc?
- Sizing against Xuân Lộc's worst month (December, 4.63 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 Xuân Lộc's solar resource compare globally?
- Xuân Lộc sits in solar zone 4 out of 5 (where 5 is strongest) at 5.41 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 Xuân Lộc?
- Xuân Lộc's dry-season output peaks at 6.43 kWh/m²/day in April; the wet season drops it to 4.63 in December. That ~33% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Xuân Lộc?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like Vietnam, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Xuân Lộc?
- Xuân Lộc swings from 6.43 kWh/m²/day in April (dry) to 4.63 in December (wet) — roughly 33%. Year-round off-grid systems must size against the wet-season minimum.