Peak Sun Hours in Heroica Matamoros, Tamaulipas, Mexico
- Solar zone
- Zone 3 (good)
- Best month
- June (6.7)
- Worst month
- December (3.0)
- Climate
- Tropical · 24.3°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 3.20 | 4.56 | 3.70 | 1.31 | 16.9 | 75 |
| Feb | 3.87 | 5.40 | 3.92 | 1.56 | 18.8 | 74 |
| Mar | 4.76 | 6.40 | 4.28 | 1.91 | 21.5 | 72 |
| Apr | 5.55 | 7.01 | 4.41 | 2.27 | 24.8 | 71 |
| May | 6.18 | 7.31 | 4.89 | 2.37 | 27.3 | 71 |
| Jun | 6.65 | 7.62 | 5.66 | 2.33 | 29.4 | 70 |
| Jul | 6.48 | 7.45 | 5.12 | 2.47 | 29.4 | 72 |
| Aug | 6.35 | 7.11 | 5.45 | 2.25 | 29.9 | 70 |
| Sep | 5.32 | 6.49 | 4.77 | 2.01 | 28.3 | 74 |
| Oct | 4.70 | 5.64 | 5.24 | 1.56 | 25.7 | 72 |
| Nov | 3.64 | 4.71 | 4.46 | 1.31 | 21.6 | 73 |
| Dec | 2.99 | 4.24 | 3.61 | 1.25 | 18.1 | 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 2.99 kWh/m²/day, 0.77 system efficiency.
About solar in Heroica Matamoros
Heroica Matamoros, Mexico has a warm, tropical climate with a distinct wet and dry season. Its annual peak sun hours average 4.97 kWh/m²/day, a good solar resource by global standards.
The strongest month in Heroica Matamoros is June (summer) at 6.65 kWh/m²/day, and the weakest is December (winter) at 2.99 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.
Heroica Matamoros'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 Heroica Matamoros?
- Heroica Matamoros averages 4.97 peak sun hours per day annually, ranging from 2.99 in December to 6.65 in June.
- How many solar panels do I need in Heroica Matamoros?
- Panel count depends on your daily load. At Heroica Matamoros's annual average of 4.97 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 Heroica Matamoros?
- Sizing against Heroica Matamoros's worst month (December, 2.99 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 Heroica Matamoros's solar resource compare globally?
- Heroica Matamoros sits in solar zone 3 out of 5 (where 5 is strongest) at 4.97 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 does the wet season affect solar generation in Heroica Matamoros?
- Heroica Matamoros's dry-season output peaks at 6.65 kWh/m²/day in June; the wet season drops it to 2.99 in December. That ~74% swing is a key sizing consideration.
- Can solar panels survive tropical storms in Heroica Matamoros?
- Most tier-1 PV panels are rated for 140+ mph wind loads; mounting hardware usually fails first. In cyclone-prone regions like Mexico, specify IEC 61215-certified panels and anchor-bolt mounts rather than ballasted.
- What's the dry-to-wet output gap in Heroica Matamoros?
- Heroica Matamoros swings from 6.65 kWh/m²/day in June (dry) to 2.99 in December (wet) — roughly 74%. Year-round off-grid systems must size against the wet-season minimum.