Peak Sun Hours in Nawabshah, Sindh, Pakistan
- Solar zone
- Zone 4 (excellent)
- Best month
- May (7.1)
- Worst month
- December (3.8)
- Climate
- Arid · 27.9°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.03 | 4.26 | 4.61 | 1.51 | 16.4 | 34 |
| Feb | 4.94 | 5.19 | 4.97 | 1.81 | 20.2 | 31 |
| Mar | 6.03 | 6.28 | 5.30 | 2.20 | 26.3 | 31 |
| Apr | 6.78 | 7.00 | 4.98 | 2.69 | 31.7 | 31 |
| May | 7.12 | 7.26 | 4.63 | 3.03 | 34.9 | 38 |
| Jun | 6.82 | 7.03 | 4.01 | 3.16 | 35.4 | 46 |
| Jul | 6.12 | 6.55 | 3.05 | 3.18 | 34.3 | 53 |
| Aug | 6.06 | 6.56 | 3.78 | 2.78 | 32.8 | 56 |
| Sep | 5.97 | 6.19 | 4.90 | 2.25 | 31.7 | 52 |
| Oct | 5.38 | 5.45 | 5.53 | 1.73 | 29.4 | 35 |
| Nov | 4.27 | 4.36 | 4.72 | 1.55 | 23.6 | 29 |
| Dec | 3.82 | 3.96 | 4.72 | 1.37 | 17.9 | 30 |
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 3.82 kWh/m²/day, 0.77 system efficiency.
About solar in Nawabshah
Nawabshah, Pakistan has a dry climate with long hours of direct sunshine and low humidity. Its annual peak sun hours average 5.61 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Nawabshah is May (spring) at 7.12 kWh/m²/day, and the weakest is December (winter) at 3.82 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.
Nawabshah'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 Nawabshah?
- Nawabshah averages 5.61 peak sun hours per day annually, ranging from 3.82 in December to 7.12 in May.
- How many solar panels do I need in Nawabshah?
- Panel count depends on your daily load. At Nawabshah's annual average of 5.61 kWh/m²/day, a 5 kWh/day load needs roughly 3 × 400 W panels. Use the calculator above for your actual load.
- What size battery do I need in Nawabshah?
- Sizing against Nawabshah's worst month (December, 3.82 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 Nawabshah's solar resource compare globally?
- Nawabshah sits in solar zone 4 out of 5 (where 5 is strongest) at 5.61 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 often should I clean solar panels in Nawabshah?
- Arid climates can drop output 10–20% between cleanings. Quarterly cleaning is typical for Nawabshah; monthly during dust-storm seasons. Dew alone isn't enough when rainfall is infrequent.
- Does extreme heat hurt solar output in Nawabshah?
- Yes. Panel efficiency drops ~0.4% per °C above 25 °C cell temperature. In Nawabshah, midday cell temperatures of 55–70 °C can derate output 12–18% below nameplate.
- Is Nawabshah's solar resource as strong as the numbers suggest?
- Nawabshah's 5.61 kWh/m²/day is excellent globally. But heat derating and dust accumulation mean real-world yields typically land 10–15% below this headline figure — factor that into sizing.