Jalisco · Mexico · 20.29° N · 102.54° W
Solar position in La Barca
Sun position, daylight and the best solar panel angle for La Barca — computed for 20.29° N, 102.54° W, 1558 m above sea level.
The sun right now
Sun in La Barca today
Saturday, 24 October 2026 · local time UTC−6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:34 | sun 18° below horizon |
| Nautical dawn | 06:00 | 12° below |
| Civil dawn | 06:26 | 6° below |
| Sunrise | 06:48 | 102° ESE |
| Golden hour ends | 07:18 | sun 6° up |
| Solar noon | 12:34 | 57.8° high |
| Golden hour starts | 17:49 | sun 6° up |
| Sunset | 18:19 | 257° WSW |
| Civil dusk | 18:42 | 6° below |
| Nautical dusk | 19:08 | 12° below |
| Astronomical dusk | 19:34 | 18° below |
| Day length | 11 h 31 min | |
Sun path diagram for La Barca
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 86.9° at solar noon in La Barca; on the December solstice only 46.3°. 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 | 07:28 | 13:01 | 18:34 | 11 h 07 min | 50.0° |
| February | 07:15 | 13:03 | 18:51 | 11 h 36 min | 59.4° |
| March | 06:53 | 12:57 | 19:01 | 12 h 08 min | 70.2° |
| April | 06:27 | 12:48 | 19:10 | 12 h 43 min | 81.8° |
| May | 06:11 | 12:46 | 19:22 | 13 h 11 min | 90.0° |
| June | 06:11 | 12:52 | 19:32 | 13 h 22 min | 86.9° |
| July | 06:21 | 12:56 | 19:31 | 13 h 11 min | 89.9° |
| August | 06:31 | 12:53 | 19:14 | 12 h 43 min | 81.6° |
| September | 06:38 | 12:43 | 18:47 | 12 h 08 min | 70.2° |
| October | 06:47 | 12:34 | 18:21 | 11 h 34 min | 58.8° |
| November | 07:03 | 12:35 | 18:08 | 11 h 06 min | 49.7° |
| December | 07:21 | 12:48 | 18:15 | 10 h 54 min | 46.3° |
A year of daylight in La Barca
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 Barca
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: 1855 kWh per kWp.
16°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° | 1746 | 94% | 4.83 | 1.6× |
| 15° | 1846 | 100% | 4.58 | 1.3× |
| 16° off-grid best | 1849 | 100% | 4.56 | 1.3× |
| 20° = latitude | 1855 | 100% | 4.45 | 1.4× |
| 21° year-round best | 1855 | 100% | 4.41 | 1.4× |
| 30° | 1836 | 99% | 4.09 | 1.5× |
| 45° | 1719 | 93% | 3.39 | 1.7× |
| 60° | 1505 | 81% | 2.55 | 2.3× |
| 70° | 1317 | 71% | 1.96 | 3.0× |
| 90° | 903 | 49% | 1.19 | 4.5× |
A fixed array in La Barca produces the most over a year at 21°. The design month for an off-grid system is July: at 16° it makes 4.56 kWh per kWp a day, 3% more than at 21°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in La Barca 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 | 4.85 | 6.10 | 5.19 | 5.08 | 15.7 °C |
| February | 5.80 | 5.96 | 5.04 | 5.63 | 17.4 °C |
| March | 6.85 | 5.19 | 4.35 | 6.03 | 19.5 °C |
| April | 7.43 | 3.70 | 3.06 | 5.85 | 22.3 °C |
| May | 7.16 | 2.59 | 2.10 | 5.23 | 23.8 °C |
| June | 6.31 | 2.23 | 1.80 | 4.56 | 22.5 °C |
| July | 5.94 | 2.39 | 1.96 | 4.41 | 20.5 °C |
| August | 5.92 | 2.92 | 2.41 | 4.62 | 20.2 °C |
| September | 5.40 | 3.60 | 3.01 | 4.51 | 19.7 °C |
| October | 5.35 | 4.80 | 4.03 | 4.92 | 19.0 °C |
| November | 5.05 | 6.03 | 5.10 | 5.17 | 17.2 °C |
| December | 4.67 | 6.27 | 5.33 | 5.02 | 15.9 °C |
| Year | 5.89 avg | 4.31 avg | 1317 kWh | 1855 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 650 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 La Barca
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.
2.7 mrow pitch at 70°
2.6 mrow pitch at 21°
How La Barca compares in Mexico
Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.
131stof 625 places in Mexico for sunshine, shared: 5.89 peak sun hours a day on flat ground.
+6%solar energy a year compared with the average place in Mexico: 1,855 against 1,754 kWh per kWp.
+3 mindaylight on the longest day, compared with Mexico City: 13 h 22 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); La Barca ranks joint 131st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.81 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 54 min, −3 min compared with Mexico City.
Solar forecast for La Barca, 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 Barca
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Places near La Barca
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A free, live card for La Barca: 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.