Peak Sun Hours in Valencia, Valencia, Spain
- Solar zone
- Zone 3 (good)
- Best month
- June (7.4)
- Worst month
- December (2.0)
- Climate
- Temperate · 16.5°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 2.36 | 2.98 | 3.97 | 0.92 | 8.3 | 71 |
| Feb | 3.21 | 4.09 | 4.46 | 1.21 | 8.8 | 68 |
| Mar | 4.34 | 5.57 | 4.82 | 1.68 | 11.6 | 65 |
| Apr | 5.45 | 6.96 | 5.03 | 2.23 | 14.4 | 63 |
| May | 6.50 | 7.93 | 5.87 | 2.44 | 18.3 | 58 |
| Jun | 7.40 | 8.27 | 7.06 | 2.35 | 23.3 | 53 |
| Jul | 7.32 | 7.94 | 7.10 | 2.22 | 26.2 | 52 |
| Aug | 6.28 | 7.06 | 6.17 | 2.07 | 25.9 | 56 |
| Sep | 4.82 | 5.76 | 4.92 | 1.84 | 22.0 | 63 |
| Oct | 3.57 | 4.38 | 4.42 | 1.38 | 17.8 | 67 |
| Nov | 2.50 | 3.18 | 3.91 | 0.97 | 11.9 | 71 |
| Dec | 2.05 | 2.61 | 3.65 | 0.82 | 8.8 | 74 |
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 2.05 kWh/m²/day, 0.77 system efficiency.
About solar in Valencia
Valencia, Spain has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 4.65 kWh/m²/day, a good solar resource by global standards.
The strongest month in Valencia is June (summer) at 7.4 kWh/m²/day, and the weakest is December (winter) at 2.05 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.
Valencia'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 Valencia?
- Valencia averages 4.65 peak sun hours per day annually, ranging from 2.05 in December to 7.4 in June.
- How many solar panels do I need in Valencia?
- Panel count depends on your daily load. At Valencia's annual average of 4.65 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 Valencia?
- Sizing against Valencia's worst month (December, 2.05 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 Valencia's solar resource compare globally?
- Valencia sits in solar zone 3 out of 5 (where 5 is strongest) at 4.65 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 Valencia?
- Valencia's worst month (December) delivers 2.05 kWh/m²/day — about 28% of the summer peak of 7.4. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Valencia's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Valencia's 4.65 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Valencia?
- At Valencia's latitude (39°), a fixed tilt near 39° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.