Tamaulipas · Mexico · 26.08° N · 98.28° W
Solar position in Reynosa
Sun position, daylight and the best solar panel angle for Reynosa — computed for 26.08° N, 98.28° W, 38 m above sea level.
The sun right now
Sun in Reynosa today
Saturday, 24 October 2026 · local time UTC−5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:19 | sun 18° below horizon |
| Nautical dawn | 06:46 | 12° below |
| Civil dawn | 07:13 | 6° below |
| Sunrise | 07:37 | 103° ESE |
| Golden hour ends | 08:08 | sun 6° up |
| Solar noon | 13:17 | 52.0° high |
| Golden hour starts | 18:25 | sun 6° up |
| Sunset | 18:57 | 257° WSW |
| Civil dusk | 19:20 | 6° below |
| Nautical dusk | 19:47 | 12° below |
| Astronomical dusk | 20:14 | 18° below |
| Day length | 11 h 20 min | |
Sun path diagram for Reynosa
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 87.4° at solar noon in Reynosa; on the December solstice only 40.5°. Sunrise swings from 63° ENE in June to 116° ESE in December — a 53° 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 | 07:21 | 12:44 | 18:08 | 10 h 47 min | 44.2° |
| February | 07:03 | 12:46 | 18:30 | 11 h 26 min | 53.6° |
| March | 07:35 | 13:40 | 19:44 | 12 h 09 min | 64.4° |
| April | 07:04 | 13:31 | 19:59 | 12 h 55 min | 76.0° |
| May | 06:44 | 13:29 | 20:15 | 13 h 32 min | 84.2° |
| June | 06:41 | 13:35 | 20:28 | 13 h 46 min | 87.4° |
| July | 06:53 | 13:39 | 20:25 | 13 h 32 min | 84.3° |
| August | 07:08 | 13:36 | 20:03 | 12 h 55 min | 75.8° |
| September | 07:21 | 13:26 | 19:30 | 12 h 09 min | 64.4° |
| October | 07:35 | 13:17 | 18:59 | 11 h 24 min | 53.0° |
| November | 06:56 | 12:18 | 17:41 | 10 h 46 min | 43.9° |
| December | 07:16 | 12:31 | 17:46 | 10 h 30 min | 40.5° |
A year of daylight in Reynosa
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 Reynosa
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: 1570 kWh per kWp.
45°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1469 | 94% | 2.44 | 2.2× |
| 15° | 1559 | 99% | 3.05 | 1.7× |
| 22° year-round best | 1570 | 100% | 3.27 | 1.5× |
| 26° = latitude | 1567 | 100% | 3.38 | 1.5× |
| 30° | 1558 | 99% | 3.48 | 1.4× |
| 45° off-grid best | 1467 | 93% | 3.69 | 1.2× |
| 60° | 1293 | 82% | 3.68 | 1.5× |
| 70° | 1138 | 72% | 3.55 | 1.9× |
| 90° | 778 | 50% | 3.00 | 3.3× |
A fixed array in Reynosa produces the most over a year at 22°. The design month for an off-grid system is December: at 45° it makes 3.69 kWh per kWp a day, 13% more than at 22°, and costs 7% of the yearly total. Why steep panels win winter.
Off-grid solar in Reynosa 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 | 3.25 | 4.27 | 3.63 | 3.46 | 15.7 °C |
| February | 3.96 | 4.26 | 3.59 | 3.88 | 18.2 °C |
| March | 4.83 | 4.04 | 3.35 | 4.29 | 21.5 °C |
| April | 5.62 | 3.46 | 2.82 | 4.53 | 25.2 °C |
| May | 6.15 | 2.88 | 2.31 | 4.60 | 27.8 °C |
| June | 6.85 | 2.63 | 2.08 | 4.89 | 29.7 °C |
| July | 6.74 | 2.81 | 2.23 | 4.89 | 29.5 °C |
| August | 6.53 | 3.47 | 2.77 | 5.01 | 30.0 °C |
| September | 5.37 | 4.00 | 3.24 | 4.51 | 27.9 °C |
| October | 4.75 | 4.80 | 3.94 | 4.45 | 25.0 °C |
| November | 3.68 | 4.69 | 3.92 | 3.81 | 20.5 °C |
| December | 3.03 | 4.18 | 3.55 | 3.27 | 16.7 °C |
| Year | 5.07 avg | 3.79 avg | 1138 kWh | 1570 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 570 Wp of panels at 70°, versus 360 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Reynosa
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.
3.1 mrow pitch at 70°
2.8 mrow pitch at 22°
How Reynosa compares in Mexico
Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.
553rdof 625 places in Mexico for sunshine: 5.07 peak sun hours a day on flat ground.
−10%solar energy a year compared with the average place in Mexico: 1,570 against 1,754 kWh per kWp.
+28 mindaylight on the longest day, compared with Mexico City: 13 h 46 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); Reynosa ranks 553rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.08 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 30 min, −27 min compared with Mexico City.
Solar forecast for Reynosa, 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 Reynosa
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Places near Reynosa
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A free, live card for Reynosa: 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.