Pinar del Río · Cuba · 22.62° N · 83.71° W
Solar position in Viñales
Sun position, daylight and the best solar panel angle for Viñales — computed for 22.62° N, 83.71° W, 144 m above sea level.
The sun right now
Sun in Viñales today
Saturday, 24 October 2026 · local time UTC−4
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:20 | sun 18° below horizon |
| Nautical dawn | 06:46 | 12° below |
| Civil dawn | 07:12 | 6° below |
| Sunrise | 07:35 | 102° ESE |
| Golden hour ends | 08:05 | sun 6° up |
| Solar noon | 13:18 | 55.5° high |
| Golden hour starts | 18:31 | sun 6° up |
| Sunset | 19:02 | 257° WSW |
| Civil dusk | 19:25 | 6° below |
| Nautical dusk | 19:51 | 12° below |
| Astronomical dusk | 20:17 | 18° below |
| Day length | 11 h 27 min | |
Sun path diagram for Viñales
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 89.2° at solar noon in Viñales; on the December solstice only 44.0°. Sunrise swings from 64° ENE in June to 115° ESE in December — a 51° 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 | 07:16 | 12:46 | 18:15 | 10 h 59 min | 47.6° |
| February | 07:02 | 12:48 | 18:34 | 11 h 32 min | 57.0° |
| March | 07:37 | 13:42 | 19:46 | 12 h 09 min | 67.8° |
| April | 07:09 | 13:33 | 19:57 | 12 h 48 min | 79.4° |
| May | 06:52 | 13:31 | 20:10 | 13 h 19 min | 87.7° |
| June | 06:51 | 13:36 | 20:22 | 13 h 31 min | 89.2° |
| July | 07:01 | 13:41 | 20:20 | 13 h 19 min | 87.7° |
| August | 07:13 | 13:37 | 20:01 | 12 h 48 min | 79.3° |
| September | 07:23 | 13:27 | 19:32 | 12 h 09 min | 67.9° |
| October | 07:34 | 13:19 | 19:04 | 11 h 31 min | 56.5° |
| November | 06:51 | 12:20 | 17:49 | 10 h 58 min | 47.4° |
| December | 07:10 | 12:33 | 17:55 | 10 h 45 min | 44.0° |
A year of daylight in Viñales
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 Viñales
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: 1616 kWh per kWp.
25°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° | 1523 | 94% | 2.99 | 1.7× |
| 15° | 1608 | 100% | 3.69 | 1.4× |
| 21° year-round best | 1616 | 100% | 3.91 | 1.3× |
| 23° = latitude | 1615 | 100% | 3.97 | 1.3× |
| 25° off-grid best | 1613 | 100% | 4.03 | 1.3× |
| 30° | 1600 | 99% | 4.16 | 1.3× |
| 45° | 1501 | 93% | 4.38 | 1.5× |
| 60° | 1317 | 81% | 4.32 | 1.9× |
| 70° | 1156 | 72% | 4.14 | 2.3× |
| 90° | 792 | 49% | 3.45 | 3.3× |
A fixed array in Viñales produces the most over a year at 21°. The design month for an off-grid system is December: at 25° it makes 4.03 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 Viñales 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 | 3.98 | 4.94 | 4.08 | 4.00 | 23.3 °C |
| February | 4.86 | 4.99 | 4.11 | 4.57 | 24.0 °C |
| March | 5.84 | 4.61 | 3.78 | 5.06 | 24.8 °C |
| April | 6.49 | 3.64 | 2.95 | 5.13 | 26.4 °C |
| May | 6.31 | 2.70 | 2.16 | 4.67 | 27.7 °C |
| June | 5.74 | 2.33 | 1.84 | 4.14 | 28.5 °C |
| July | 6.19 | 2.54 | 2.01 | 4.49 | 29.1 °C |
| August | 5.92 | 3.03 | 2.42 | 4.51 | 29.4 °C |
| September | 5.32 | 3.70 | 2.98 | 4.36 | 28.7 °C |
| October | 4.72 | 4.37 | 3.54 | 4.22 | 27.6 °C |
| November | 4.18 | 4.93 | 4.04 | 4.09 | 25.5 °C |
| December | 3.81 | 5.04 | 4.14 | 3.91 | 24.4 °C |
| Year | 5.28 avg | 3.89 avg | 1156 kWh | 1616 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 640 Wp of panels at 70°, versus 300 Wp at 21°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Viñales
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.
2.9 mrow pitch at 70°
2.7 mrow pitch at 21°
How Viñales compares in Cuba
Against the other 122 places in Cuba with climate data, for a fixed array at its best angle.
111thof 123 places in Cuba for sunshine, shared: 5.28 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Cuba: 1,616 against 1,639 kWh per kWp.
−2 mindaylight on the longest day, compared with Havana: 13 h 31 min against 13 h 34 min.
21°best year-round tilt here; across Cuba it runs from 19° in Puerto Padre to 22° in Consolación del Sur.
Of the 123 places in Cuba, Niquero gets the most sun (5.68 peak sun hours a day) and Remedios and one other place the least (5.17); Viñales ranks joint 111th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.84 kWh a day here, against 1.85 kWh on average in Cuba. The shortest day lasts 10 h 45 min, +2 min compared with Havana.
Solar forecast for Viñales, 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 Viñales
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Places near Viñales
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A free, live card for Viñales: 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.