Peak Sun Hours in Paris 19 Buttes-Chaumont, Île-de-France, France
- Solar zone
- Zone 2 (moderate)
- Best month
- June (5.8)
- Worst month
- December (0.8)
- Climate
- Temperate · 10.9°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 0.96 | 1.75 | 1.57 | 0.57 | 3.0 | 92 |
| Feb | 1.77 | 2.88 | 2.47 | 0.93 | 3.6 | 87 |
| Mar | 3.01 | 4.48 | 3.11 | 1.53 | 6.7 | 82 |
| Apr | 4.54 | 6.22 | 4.07 | 2.16 | 10.3 | 77 |
| May | 5.25 | 7.49 | 3.98 | 2.66 | 13.8 | 76 |
| Jun | 5.81 | 7.98 | 4.33 | 2.86 | 17.4 | 75 |
| Jul | 5.63 | 7.62 | 4.30 | 2.75 | 19.3 | 72 |
| Aug | 4.81 | 6.47 | 3.86 | 2.41 | 18.9 | 72 |
| Sep | 3.74 | 5.01 | 4.03 | 1.69 | 15.6 | 76 |
| Oct | 2.21 | 3.30 | 2.77 | 1.13 | 11.6 | 84 |
| Nov | 1.17 | 1.99 | 1.82 | 0.66 | 6.9 | 91 |
| Dec | 0.80 | 1.44 | 1.55 | 0.45 | 3.5 | 93 |
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 0.80 kWh/m²/day, 0.77 system efficiency.
About solar in Paris 19 Buttes-Chaumont
Paris 19 Buttes-Chaumont, France has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 3.31 kWh/m²/day, a moderate solar resource by global standards.
The strongest month in Paris 19 Buttes-Chaumont is June (summer) at 5.81 kWh/m²/day, and the weakest is December (winter) at 0.8 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.
Given the moderate resource, Paris 19 Buttes-Chaumont installations typically oversize panels or combine solar with another source (grid, generator, hydro) for reliability.
FAQ
- What are the peak sun hours in Paris 19 Buttes-Chaumont?
- Paris 19 Buttes-Chaumont averages 3.31 peak sun hours per day annually, ranging from 0.8 in December to 5.81 in June.
- How many solar panels do I need in Paris 19 Buttes-Chaumont?
- Panel count depends on your daily load. At Paris 19 Buttes-Chaumont's annual average of 3.31 kWh/m²/day, a 5 kWh/day load needs roughly 5 × 400 W panels. Use the calculator above for your actual load.
- What size battery do I need in Paris 19 Buttes-Chaumont?
- Sizing against Paris 19 Buttes-Chaumont's worst month (December, 0.8 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 Paris 19 Buttes-Chaumont's solar resource compare globally?
- Paris 19 Buttes-Chaumont sits in solar zone 2 out of 5 (where 5 is strongest) at 3.31 kWh/m²/day — moderate 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 Paris 19 Buttes-Chaumont?
- Paris 19 Buttes-Chaumont's worst month (December) delivers 0.8 kWh/m²/day — about 14% of the summer peak of 5.81. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Paris 19 Buttes-Chaumont's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Paris 19 Buttes-Chaumont's 3.31 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Paris 19 Buttes-Chaumont?
- At Paris 19 Buttes-Chaumont's latitude (49°), a fixed tilt near 49° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.