Peak Sun Hours in Burgos, Castille and León, Spain
- Solar zone
- Zone 3 (good)
- Best month
- July (7.0)
- Worst month
- December (1.5)
- Climate
- Temperate · 10.2°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 1.59 | 2.65 | 2.52 | 0.81 | 2.7 | 89 |
| Feb | 2.43 | 3.83 | 3.18 | 1.17 | 3.2 | 84 |
| Mar | 3.69 | 5.41 | 3.74 | 1.75 | 6.0 | 79 |
| Apr | 4.84 | 6.96 | 4.00 | 2.35 | 8.7 | 76 |
| May | 5.96 | 8.05 | 4.83 | 2.69 | 12.0 | 74 |
| Jun | 6.70 | 8.42 | 5.72 | 2.69 | 16.4 | 70 |
| Jul | 7.03 | 8.18 | 6.83 | 2.36 | 18.6 | 66 |
| Aug | 6.12 | 7.23 | 6.19 | 2.15 | 18.7 | 64 |
| Sep | 4.70 | 5.79 | 5.20 | 1.79 | 15.6 | 68 |
| Oct | 3.05 | 4.22 | 3.86 | 1.33 | 11.5 | 75 |
| Nov | 1.81 | 2.90 | 2.74 | 0.90 | 6.1 | 86 |
| Dec | 1.46 | 2.31 | 2.65 | 0.70 | 3.1 | 88 |
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 1.46 kWh/m²/day, 0.77 system efficiency.
About solar in Burgos
Burgos, Spain has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 4.12 kWh/m²/day, a good solar resource by global standards.
The strongest month in Burgos is July (summer) at 7.03 kWh/m²/day, and the weakest is December (winter) at 1.46 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.
Burgos'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 Burgos?
- Burgos averages 4.12 peak sun hours per day annually, ranging from 1.46 in December to 7.03 in July.
- How many solar panels do I need in Burgos?
- Panel count depends on your daily load. At Burgos's annual average of 4.12 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 Burgos?
- Sizing against Burgos's worst month (December, 1.46 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 Burgos's solar resource compare globally?
- Burgos sits in solar zone 3 out of 5 (where 5 is strongest) at 4.12 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 much does winter reduce solar output in Burgos?
- Burgos's worst month (December) delivers 1.46 kWh/m²/day — about 21% of the summer peak of 7.03. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Burgos's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Burgos's 4.12 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Burgos?
- At Burgos's latitude (42°), a fixed tilt near 42° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.