México · Mexico · 19.23° N · 98.93° W
Solar position in San Mateo Huitzilzingo
Sun position, daylight and the best solar panel angle for San Mateo Huitzilzingo — computed for 19.23° N, 98.93° W, 2244 m above sea level.
The sun right now
Sun in San Mateo Huitzilzingo today
Saturday, 24 October 2026 · local time UTC−6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:19 | sun 18° below horizon |
| Nautical dawn | 05:44 | 12° below |
| Civil dawn | 06:10 | 6° below |
| Sunrise | 06:33 | 102° ESE |
| Golden hour ends | 07:02 | sun 6° up |
| Solar noon | 12:19 | 58.8° high |
| Golden hour starts | 17:36 | sun 6° up |
| Sunset | 18:06 | 258° WSW |
| Civil dusk | 18:28 | 6° below |
| Nautical dusk | 18:54 | 12° below |
| Astronomical dusk | 19:20 | 18° below |
| Day length | 11 h 33 min | |
Sun path diagram for San Mateo Huitzilzingo
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 85.8° at solar noon in San Mateo Huitzilzingo; on the December solstice only 47.3°. Sunrise swings from 65° ENE in June to 115° ESE in December — a 50° arc along the horizon.
Sunrise, sunset and sun height by month
Values for the 21st of each month, local clock time including daylight saving time.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:12 | 12:47 | 18:22 | 11 h 10 min | 51.0° |
| February | 07:00 | 12:49 | 18:38 | 11 h 38 min | 60.4° |
| March | 06:38 | 12:42 | 18:46 | 12 h 08 min | 71.2° |
| April | 06:13 | 12:34 | 18:55 | 12 h 41 min | 82.8° |
| May | 05:58 | 12:32 | 19:05 | 13 h 07 min | 88.9° |
| June | 05:58 | 12:37 | 19:16 | 13 h 17 min | 85.8° |
| July | 06:08 | 12:42 | 19:15 | 13 h 07 min | 88.9° |
| August | 06:18 | 12:38 | 18:59 | 12 h 41 min | 82.7° |
| September | 06:24 | 12:28 | 18:32 | 12 h 08 min | 71.3° |
| October | 06:32 | 12:20 | 18:08 | 11 h 36 min | 59.9° |
| November | 06:46 | 12:21 | 17:56 | 11 h 09 min | 50.7° |
| December | 07:04 | 12:33 | 18:03 | 10 h 58 min | 47.3° |
A year of daylight in San Mateo Huitzilzingo
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in San Mateo Huitzilzingo
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
21°collects the most energy over a year: 1807 kWh per kWp.
14°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1708 | 95% | 4.83 | 1.4× |
| 14° off-grid best | 1797 | 99% | 4.53 | 1.3× |
| 15° | 1800 | 100% | 4.50 | 1.3× |
| 19° = latitude | 1807 | 100% | 4.37 | 1.3× |
| 21° year-round best | 1807 | 100% | 4.30 | 1.3× |
| 30° | 1786 | 99% | 3.93 | 1.5× |
| 45° | 1670 | 92% | 3.17 | 1.8× |
| 60° | 1460 | 81% | 2.30 | 2.5× |
| 70° | 1278 | 71% | 1.72 | 3.2× |
| 90° | 883 | 49% | 1.12 | 4.1× |
A fixed array in San Mateo Huitzilzingo produces the most over a year at 21°. The design month for an off-grid system is June: at 14° it makes 4.53 kWh per kWp a day, 5% more than at 21°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in San Mateo Huitzilzingo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 21° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 21° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.95 | 6.08 | 5.24 | 5.20 | 12.5 °C |
| February | 5.77 | 5.73 | 4.90 | 5.60 | 14.3 °C |
| March | 6.50 | 4.79 | 4.07 | 5.74 | 16.2 °C |
| April | 6.75 | 3.38 | 2.83 | 5.38 | 18.5 °C |
| May | 6.40 | 2.46 | 2.03 | 4.79 | 19.1 °C |
| June | 5.87 | 2.09 | 1.72 | 4.30 | 17.7 °C |
| July | 5.84 | 2.21 | 1.84 | 4.36 | 16.5 °C |
| August | 5.80 | 2.76 | 2.31 | 4.56 | 16.4 °C |
| September | 5.13 | 3.36 | 2.84 | 4.33 | 15.8 °C |
| October | 5.22 | 4.57 | 3.90 | 4.83 | 14.9 °C |
| November | 5.02 | 5.78 | 4.97 | 5.14 | 13.4 °C |
| December | 4.84 | 6.34 | 5.46 | 5.21 | 12.8 °C |
| Year | 5.67 avg | 4.12 avg | 1278 kWh | 1807 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 690 Wp of panels at 70°, versus 270 Wp at 21°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in San Mateo Huitzilzingo
Distance between rows of 2 m long panels (slope length) so that no row shades the next between 10:00 and 14:00 solar time on the winter solstice.
2.6 mrow pitch at 70°
2.6 mrow pitch at 21°
How San Mateo Huitzilzingo compares in Mexico
Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.
278thof 625 places in Mexico for sunshine, shared: 5.67 peak sun hours a day on flat ground.
+3%solar energy a year compared with the average place in Mexico: 1,807 against 1,754 kWh per kWp.
−1 mindaylight on the longest day, compared with Mexico City: 13 h 17 min against 13 h 18 min.
21°best year-round tilt here; across Mexico it runs from 15° in Coatzacoalcos to 30° in Tijuana.
Of the 625 places in Mexico, Ciudad Constitución gets the most sun (6.12 peak sun hours a day) and Poza Rica de Hidalgo and one other place the least (4.59); San Mateo Huitzilzingo ranks joint 278th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.72 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 58 min, +1 min compared with Mexico City.
Solar forecast for San Mateo Huitzilzingo, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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A free, live card for San Mateo Huitzilzingo: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
Sun positions: NREL Solar Position Algorithm. Climate: NASA POWER monthly climatology (NASA Langley Research Center). Forecast: Deutscher Wetterdienst, ICON-EU (CC BY 4.0), processed. Places: GeoNames (CC BY 4.0). Time zones: IANA. Sources and licences.