Matagalpa Department · Nicaragua · 12.93° N · 85.22° W
Solar position in Río Blanco
Sun position, daylight and the best solar panel angle for Río Blanco — computed for 12.93° N, 85.22° W, 265 m above sea level.
The sun right now
Sun in Río Blanco today
Saturday, 24 October 2026 · local time UTC−6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:21 | sun 18° below horizon |
| Nautical dawn | 04:45 | 12° below |
| Civil dawn | 05:11 | 6° below |
| Sunrise | 05:32 | 102° ESE |
| Golden hour ends | 06:01 | sun 6° up |
| Solar noon | 11:24 | 65.1° high |
| Golden hour starts | 16:48 | sun 6° up |
| Sunset | 17:17 | 258° WSW |
| Civil dusk | 17:38 | 6° below |
| Nautical dusk | 18:03 | 12° below |
| Astronomical dusk | 18:28 | 18° below |
| Day length | 11 h 45 min | |
Sun path diagram for Río Blanco
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 79.5° at solar noon in Río Blanco; on the December solstice only 53.6°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 06:07 | 11:52 | 17:37 | 11 h 29 min | 57.3° |
| February | 06:00 | 11:54 | 17:48 | 11 h 48 min | 66.7° |
| March | 05:44 | 11:48 | 17:51 | 12 h 07 min | 77.5° |
| April | 05:24 | 11:39 | 17:54 | 12 h 29 min | 89.1° |
| May | 05:14 | 11:37 | 18:00 | 12 h 46 min | 82.6° |
| June | 05:16 | 11:42 | 18:09 | 12 h 53 min | 79.5° |
| July | 05:24 | 11:47 | 18:10 | 12 h 46 min | 82.6° |
| August | 05:29 | 11:43 | 17:58 | 12 h 29 min | 89.0° |
| September | 05:30 | 11:33 | 17:37 | 12 h 08 min | 77.6° |
| October | 05:32 | 11:25 | 17:18 | 11 h 47 min | 66.2° |
| November | 05:42 | 11:26 | 17:11 | 11 h 29 min | 57.1° |
| December | 05:58 | 11:39 | 17:20 | 11 h 22 min | 53.6° |
A year of daylight in Río Blanco
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 Río Blanco
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
14°collects the most energy over a year: 1401 kWh per kWp.
3°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° | 1367 | 98% | 3.40 | 1.4× |
| 3° off-grid best | 1380 | 99% | 3.38 | 1.3× |
| 13° = latitude | 1401 | 100% | 3.23 | 1.4× |
| 14° year-round best | 1401 | 100% | 3.21 | 1.4× |
| 15° | 1401 | 100% | 3.19 | 1.4× |
| 30° | 1357 | 97% | 2.82 | 1.6× |
| 45° | 1239 | 88% | 2.31 | 1.8× |
| 60° | 1056 | 75% | 1.71 | 2.3× |
| 70° | 907 | 65% | 1.32 | 2.8× |
| 90° | 618 | 44% | 0.99 | 2.9× |
A fixed array in Río Blanco produces the most over a year at 14°. The design month for an off-grid system is July: at 3° it makes 3.38 kWh per kWp a day, 5% more than at 14°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Río Blanco at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 14° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 14° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.33 | 4.39 | 3.62 | 3.89 | 23.9 °C |
| February | 4.82 | 4.05 | 3.32 | 4.15 | 24.9 °C |
| March | 5.58 | 3.59 | 2.92 | 4.57 | 26.4 °C |
| April | 5.57 | 2.56 | 2.05 | 4.30 | 27.9 °C |
| May | 4.89 | 1.88 | 1.49 | 3.67 | 27.3 °C |
| June | 4.49 | 1.64 | 1.29 | 3.34 | 25.8 °C |
| July | 4.28 | 1.67 | 1.32 | 3.21 | 25.4 °C |
| August | 4.63 | 2.07 | 1.66 | 3.56 | 25.6 °C |
| September | 4.90 | 2.85 | 2.31 | 3.93 | 25.3 °C |
| October | 4.57 | 3.47 | 2.84 | 3.84 | 24.7 °C |
| November | 4.35 | 4.15 | 3.42 | 3.85 | 24.1 °C |
| December | 4.12 | 4.43 | 3.65 | 3.76 | 23.8 °C |
| Year | 4.71 avg | 3.06 avg | 907 kWh | 1401 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 910 Wp of panels at 70°, versus 370 Wp at 14°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Río Blanco
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.
2.2 mrow pitch at 70°
2.3 mrow pitch at 14°
How Río Blanco compares in Nicaragua
Against the other 36 places in Nicaragua with climate data, for a fixed array at its best angle.
33rdof 37 places in Nicaragua for sunshine: 4.71 peak sun hours a day on flat ground.
−11%solar energy a year compared with the average place in Nicaragua: 1,401 against 1,576 kWh per kWp.
+3 mindaylight on the longest day, compared with Managua: 12 h 53 min against 12 h 50 min.
14°best year-round tilt here; across Nicaragua it runs from 13° in Nueva Guinea to 15° in León.
Of the 37 places in Nicaragua, Corinto gets the most sun (5.84 peak sun hours a day) and Nueva Guinea the least (4.44); Río Blanco ranks 33rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.29 kWh a day here, against 1.32 kWh on average in Nicaragua. The shortest day lasts 11 h 22 min, −3 min compared with Managua.
Solar forecast for Río Blanco, 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 Río Blanco
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Places near Río Blanco
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A free, live card for Río Blanco: 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.