Peak Sun Hours in Nagpur, Maharashtra, India
- Solar zone
- Zone 4 (excellent)
- Best month
- April (7.0)
- Worst month
- August (3.8)
- Climate
- Tropical · 26.9°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.53 | 4.83 | 5.26 | 1.54 | 20.5 | 43 |
| Feb | 5.41 | 5.70 | 5.82 | 1.73 | 24.4 | 35 |
| Mar | 6.26 | 6.66 | 6.08 | 1.98 | 29.0 | 29 |
| Apr | 6.98 | 7.39 | 6.42 | 2.10 | 33.8 | 23 |
| May | 6.97 | 7.58 | 5.80 | 2.43 | 36.7 | 25 |
| Jun | 5.32 | 7.12 | 2.96 | 2.71 | 32.0 | 58 |
| Jul | 3.83 | 6.87 | 1.00 | 2.59 | 27.3 | 82 |
| Aug | 3.76 | 6.73 | 1.04 | 2.56 | 26.4 | 87 |
| Sep | 4.77 | 6.30 | 2.88 | 2.42 | 26.4 | 85 |
| Oct | 5.21 | 5.71 | 4.90 | 1.87 | 24.5 | 76 |
| Nov | 4.71 | 4.91 | 5.31 | 1.53 | 21.9 | 68 |
| Dec | 4.37 | 4.55 | 5.49 | 1.36 | 20.0 | 56 |
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 3.76 kWh/m²/day, 0.77 system efficiency.
About solar in Nagpur
Nagpur, India has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 5.18 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Nagpur is April (spring) at 6.98 kWh/m²/day, and the weakest is August (summer) at 3.76 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.
Nagpur'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 Nagpur?
- Nagpur averages 5.18 peak sun hours per day annually, ranging from 3.76 in August to 6.98 in April.
- How many solar panels do I need in Nagpur?
- Panel count depends on your daily load. At Nagpur's annual average of 5.18 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 Nagpur?
- Sizing against Nagpur's worst month (August, 3.76 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 Nagpur's solar resource compare globally?
- Nagpur sits in solar zone 4 out of 5 (where 5 is strongest) at 5.18 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 Nagpur?
- Nagpur's dry-season output peaks at 6.98 kWh/m²/day in April; the wet season drops it to 3.76 in August. That ~62% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Nagpur?
- 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 Nagpur?
- Nagpur swings from 6.98 kWh/m²/day in April (dry) to 3.76 in August (wet) — roughly 62%. Year-round off-grid systems must size against the wet-season minimum.