Peak Sun Hours in Gorakhpur, Haryana, India
- Solar zone
- Zone 3 (good)
- Best month
- May (6.7)
- Worst month
- December (3.0)
- Climate
- Tropical · 26.0°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.01 | 3.55 | 2.83 | 1.49 | 13.2 | 42 |
| Feb | 4.28 | 4.71 | 4.16 | 1.77 | 16.8 | 41 |
| Mar | 5.57 | 5.96 | 4.98 | 2.09 | 23.1 | 34 |
| Apr | 6.47 | 6.92 | 4.96 | 2.60 | 29.8 | 26 |
| May | 6.71 | 7.14 | 4.39 | 2.93 | 34.8 | 24 |
| Jun | 6.07 | 6.81 | 3.13 | 3.12 | 36.1 | 35 |
| Jul | 5.52 | 6.50 | 2.55 | 3.02 | 33.8 | 54 |
| Aug | 5.55 | 6.49 | 3.25 | 2.75 | 31.9 | 62 |
| Sep | 5.39 | 5.90 | 4.21 | 2.24 | 29.9 | 57 |
| Oct | 4.59 | 4.69 | 3.92 | 1.95 | 26.4 | 39 |
| Nov | 3.50 | 3.63 | 3.26 | 1.62 | 20.7 | 33 |
| Dec | 2.96 | 3.24 | 3.14 | 1.37 | 15.3 | 36 |
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 2.96 kWh/m²/day, 0.77 system efficiency.
About solar in Gorakhpur
Gorakhpur, India has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 4.97 kWh/m²/day, a good solar resource by global standards.
The strongest month in Gorakhpur is May (spring) at 6.71 kWh/m²/day, and the weakest is December (winter) at 2.96 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.
Gorakhpur'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 Gorakhpur?
- Gorakhpur averages 4.97 peak sun hours per day annually, ranging from 2.96 in December to 6.71 in May.
- How many solar panels do I need in Gorakhpur?
- Panel count depends on your daily load. At Gorakhpur's annual average of 4.97 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 Gorakhpur?
- Sizing against Gorakhpur's worst month (December, 2.96 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 Gorakhpur's solar resource compare globally?
- Gorakhpur sits in solar zone 3 out of 5 (where 5 is strongest) at 4.97 kWh/m²/day — good 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 Gorakhpur?
- Gorakhpur's dry-season output peaks at 6.71 kWh/m²/day in May; the wet season drops it to 2.96 in December. That ~75% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Gorakhpur?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like India, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Gorakhpur?
- Gorakhpur swings from 6.71 kWh/m²/day in May (dry) to 2.96 in December (wet) — roughly 75%. Year-round off-grid systems must size against the wet-season minimum.