Peak Sun Hours in Morelia, Michoacán, Mexico
- Solar zone
- Zone 4 (excellent)
- Best month
- April (7.2)
- Worst month
- December (4.7)
- Climate
- Temperate · 18.3°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.83 | 5.57 | 5.74 | 1.44 | 14.9 | 61 |
| Feb | 5.76 | 6.44 | 6.56 | 1.47 | 16.6 | 55 |
| Mar | 6.68 | 7.38 | 7.03 | 1.64 | 18.6 | 48 |
| Apr | 7.20 | 7.90 | 6.91 | 1.91 | 21.0 | 42 |
| May | 6.72 | 7.86 | 5.37 | 2.27 | 22.1 | 51 |
| Jun | 5.80 | 7.82 | 3.61 | 2.52 | 20.6 | 68 |
| Jul | 5.59 | 7.77 | 3.07 | 2.62 | 19.1 | 77 |
| Aug | 5.60 | 7.58 | 3.26 | 2.56 | 19.0 | 79 |
| Sep | 5.05 | 7.06 | 2.99 | 2.38 | 18.5 | 80 |
| Oct | 5.12 | 6.39 | 4.31 | 1.98 | 17.9 | 75 |
| Nov | 4.98 | 5.68 | 5.73 | 1.47 | 16.4 | 69 |
| Dec | 4.71 | 5.30 | 5.88 | 1.38 | 15.2 | 64 |
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 4.71 kWh/m²/day, 0.77 system efficiency.
About solar in Morelia
Morelia, Mexico has a temperate climate with meaningful seasonal variation in solar resource. Its annual peak sun hours average 5.67 kWh/m²/day, a excellent solar resource by global standards.
The strongest month in Morelia is April (spring) at 7.2 kWh/m²/day, and the weakest is December (winter) at 4.71 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.
Morelia'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 Morelia?
- Morelia averages 5.67 peak sun hours per day annually, ranging from 4.71 in December to 7.2 in April.
- How many solar panels do I need in Morelia?
- Panel count depends on your daily load. At Morelia's annual average of 5.67 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 Morelia?
- Sizing against Morelia's worst month (December, 4.71 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 Morelia's solar resource compare globally?
- Morelia sits in solar zone 4 out of 5 (where 5 is strongest) at 5.67 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 Morelia?
- Morelia's worst month (December) delivers 4.71 kWh/m²/day — about 65% of the summer peak of 7.2. Off-grid systems here typically oversize 1.5–2× or pair with a backup source.
- Do cloudy days significantly affect Morelia's solar?
- Partly. Diffuse light still produces 10–25% of clear-sky output. Morelia's 5.67 kWh/m²/day already reflects average cloudiness, so no further derating is needed for sizing.
- What panel tilt works best in Morelia?
- At Morelia's latitude (20°), a fixed tilt near 20° balances year-round yield. Winter-heavy loads favor latitude + 15°; summer-heavy, latitude − 15°.