Peak Sun Hours in Jamshedpur, Jharkhand, India
- Solar zone
- Zone 3 (good)
- Best month
- April (6.3)
- Worst month
- December (3.8)
- Climate
- Tropical · 25.2°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.05 | 4.29 | 4.06 | 1.61 | 16.5 | 61 |
| Feb | 4.89 | 5.19 | 4.65 | 1.81 | 20.9 | 52 |
| Mar | 5.65 | 6.05 | 4.66 | 2.17 | 26.5 | 41 |
| Apr | 6.34 | 6.82 | 5.08 | 2.28 | 31.5 | 39 |
| May | 6.30 | 7.00 | 4.41 | 2.56 | 32.7 | 50 |
| Jun | 5.11 | 6.80 | 2.40 | 2.80 | 30.7 | 69 |
| Jul | 4.30 | 6.94 | 1.33 | 2.85 | 27.9 | 85 |
| Aug | 4.34 | 6.72 | 1.57 | 2.77 | 27.3 | 88 |
| Sep | 4.45 | 6.11 | 2.27 | 2.51 | 26.7 | 88 |
| Oct | 4.56 | 5.35 | 3.50 | 2.04 | 24.5 | 81 |
| Nov | 4.19 | 4.48 | 4.08 | 1.67 | 20.4 | 74 |
| Dec | 3.76 | 3.97 | 3.91 | 1.51 | 16.8 | 68 |
GHI, Clear-sky, DNI, DHI in kWh/m²/day. Data: NASA POWER climatology (long-term monthly averages).
Off-grid calculator
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- 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 Jamshedpur
Jamshedpur, India has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 4.83 kWh/m²/day, a good solar resource by global standards.
The strongest month in Jamshedpur is April (spring) at 6.34 kWh/m²/day, and the weakest is December (winter) at 3.76 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.
Jamshedpur'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 Jamshedpur?
- Jamshedpur averages 4.83 peak sun hours per day annually, ranging from 3.76 in December to 6.34 in April.
- How many solar panels do I need in Jamshedpur?
- Panel count depends on your daily load. At Jamshedpur's annual average of 4.83 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 Jamshedpur?
- Sizing against Jamshedpur's worst month (December, 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 Jamshedpur's solar resource compare globally?
- Jamshedpur sits in solar zone 3 out of 5 (where 5 is strongest) at 4.83 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 Jamshedpur?
- Jamshedpur's dry-season output peaks at 6.34 kWh/m²/day in April; the wet season drops it to 3.76 in December. That ~53% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Jamshedpur?
- 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 Jamshedpur?
- Jamshedpur swings from 6.34 kWh/m²/day in April (dry) to 3.76 in December (wet) — roughly 53%. Year-round off-grid systems must size against the wet-season minimum.