Peak Sun Hours in Puebla, Puebla, Mexico
- Solar zone
- Zone 4 (excellent)
- Best month
- April (6.6)
- Worst month
- December (4.8)
- Climate
- Temperate · 16.7°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.91 | 5.57 | 5.56 | 1.51 | 13.6 | 57 |
| Feb | 5.70 | 6.39 | 5.89 | 1.69 | 15.4 | 52 |
| Mar | 6.40 | 7.30 | 5.99 | 1.92 | 17.4 | 48 |
| Apr | 6.60 | 7.76 | 5.39 | 2.19 | 19.6 | 48 |
| May | 6.31 | 7.77 | 4.46 | 2.42 | 20.2 | 55 |
| Jun | 5.74 | 7.87 | 3.61 | 2.45 | 18.6 | 68 |
| Jul | 5.67 | 7.81 | 3.43 | 2.47 | 17.3 | 71 |
| Aug | 5.67 | 7.65 | 3.52 | 2.45 | 17.2 | 73 |
| Sep | 4.96 | 7.13 | 2.94 | 2.33 | 16.6 | 79 |
| Oct | 5.11 | 6.49 | 4.38 | 1.93 | 15.8 | 73 |
| Nov | 4.93 | 5.73 | 5.46 | 1.54 | 14.5 | 66 |
| Dec | 4.80 | 5.30 | 5.73 | 1.45 | 13.9 | 60 |
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 4.80 kWh/m²/day, 0.77 system efficiency.
About solar in Puebla
Puebla, Mexico has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 5.57 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Puebla is April (spring) at 6.6 kWh/m²/day, and the weakest is December (winter) at 4.8 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.
Puebla'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 Puebla?
- Puebla averages 5.57 peak sun hours per day annually, ranging from 4.8 in December to 6.6 in April.
- How many solar panels do I need in Puebla?
- Panel count depends on your daily load. At Puebla's annual average of 5.57 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 Puebla?
- Sizing against Puebla's worst month (December, 4.8 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 Puebla's solar resource compare globally?
- Puebla sits in solar zone 4 out of 5 (where 5 is strongest) at 5.57 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 much does winter reduce solar output in Puebla?
- Puebla's worst month (December) delivers 4.8 kWh/m²/day — about 73% of the summer peak of 6.6. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Puebla's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Puebla's 5.57 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Puebla?
- At Puebla's latitude (19°), a fixed tilt near 19° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.