Guanajuato · Mexico · 21.15° N · 101.73° W
Solar position in La Ermita
Sun position, daylight and the best solar panel angle for La Ermita — computed for 21.15° N, 101.73° W, 1975 m above sea level.
The sun right now
Sun in La Ermita today
Saturday, 24 October 2026 · local time UTC−6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:31 | sun 18° below horizon |
| Nautical dawn | 05:57 | 12° below |
| Civil dawn | 06:23 | 6° below |
| Sunrise | 06:46 | 102° ESE |
| Golden hour ends | 07:16 | sun 6° up |
| Solar noon | 12:30 | 56.9° high |
| Golden hour starts | 17:45 | sun 6° up |
| Sunset | 18:15 | 257° WSW |
| Civil dusk | 18:38 | 6° below |
| Nautical dusk | 19:04 | 12° below |
| Astronomical dusk | 19:30 | 18° below |
| Day length | 11 h 30 min | |
Sun path diagram for La Ermita
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 87.7° at solar noon in La Ermita; on the December solstice only 45.4°. Sunrise swings from 64° 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 | 07:26 | 12:58 | 18:30 | 11 h 04 min | 49.1° |
| February | 07:13 | 13:00 | 18:47 | 11 h 35 min | 58.5° |
| March | 06:49 | 12:54 | 18:58 | 12 h 08 min | 69.3° |
| April | 06:23 | 12:45 | 19:08 | 12 h 45 min | 80.9° |
| May | 06:06 | 12:43 | 19:20 | 13 h 14 min | 89.1° |
| June | 06:06 | 12:48 | 19:31 | 13 h 25 min | 87.7° |
| July | 06:16 | 12:53 | 19:30 | 13 h 14 min | 89.2° |
| August | 06:27 | 12:49 | 19:12 | 12 h 45 min | 80.8° |
| September | 06:35 | 12:39 | 18:43 | 12 h 08 min | 69.3° |
| October | 06:44 | 12:31 | 18:17 | 11 h 33 min | 58.0° |
| November | 07:01 | 12:32 | 18:04 | 11 h 03 min | 48.8° |
| December | 07:19 | 12:45 | 18:10 | 10 h 51 min | 45.4° |
A year of daylight in La Ermita
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 La Ermita
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
22°collects the most energy over a year: 1904 kWh per kWp.
17°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1785 | 94% | 5.12 | 1.6× |
| 15° | 1892 | 99% | 4.85 | 1.3× |
| 17° off-grid best | 1898 | 100% | 4.79 | 1.3× |
| 21° = latitude | 1904 | 100% | 4.67 | 1.3× |
| 22° year-round best | 1904 | 100% | 4.63 | 1.3× |
| 30° | 1887 | 99% | 4.32 | 1.4× |
| 45° | 1770 | 93% | 3.56 | 1.7× |
| 60° | 1553 | 82% | 2.66 | 2.2× |
| 70° | 1361 | 71% | 2.02 | 2.9× |
| 90° | 934 | 49% | 1.16 | 4.6× |
A fixed array in La Ermita produces the most over a year at 22°. The design month for an off-grid system is July: at 17° it makes 4.79 kWh per kWp a day, 3% more than at 22°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in La Ermita at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 22° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 22° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.82 | 6.21 | 5.35 | 5.20 | 12.7 °C |
| February | 5.75 | 6.03 | 5.15 | 5.72 | 14.7 °C |
| March | 6.78 | 5.24 | 4.44 | 6.07 | 16.9 °C |
| April | 7.35 | 3.77 | 3.14 | 5.85 | 19.9 °C |
| May | 7.21 | 2.66 | 2.18 | 5.30 | 21.6 °C |
| June | 6.57 | 2.28 | 1.86 | 4.73 | 20.8 °C |
| July | 6.26 | 2.46 | 2.02 | 4.63 | 19.1 °C |
| August | 6.27 | 3.04 | 2.53 | 4.89 | 18.9 °C |
| September | 5.55 | 3.75 | 3.15 | 4.69 | 18.2 °C |
| October | 5.49 | 5.06 | 4.29 | 5.15 | 17.0 °C |
| November | 5.02 | 6.16 | 5.27 | 5.29 | 14.6 °C |
| December | 4.62 | 6.34 | 5.45 | 5.10 | 13.2 °C |
| Year | 5.98 avg | 4.41 avg | 1361 kWh | 1904 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 630 Wp of panels at 70°, versus 250 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in La Ermita
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.
2.8 mrow pitch at 70°
2.7 mrow pitch at 22°
How La Ermita compares in Mexico
Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.
41stof 625 places in Mexico for sunshine, shared: 5.98 peak sun hours a day on flat ground.
+9%solar energy a year compared with the average place in Mexico: 1,904 against 1,754 kWh per kWp.
+7 mindaylight on the longest day, compared with Mexico City: 13 h 25 min against 13 h 18 min.
22°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); La Ermita ranks joint 41st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.86 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 51 min, −7 min compared with Mexico City.
Solar forecast for La Ermita, 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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Questions about the sun in La Ermita
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A free, live card for La Ermita: 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.