Solarposition.org

Nacional · Dominican Republic · 18.47° N · 69.89° W

Solar position in Santo Domingo

Sun position, daylight and the best solar panel angle for Santo Domingo — computed for 18.47° N, 69.89° W, 24 m above sea level.

Sunrise today06:36102° ESE
Sunset today18:11258° WSW
Best panel angle18°year-round, facing south
Off-grid angle19°best for the darkest month

The sun right now

Azimuth180.0°
Elevation59.6°
At solar noon, 12:23Open on the sun map

Sun in Santo Domingo today

Saturday, 24 October 2026 · local time UTC−4

EventTimeDirection / height
Astronomical dawn05:22sun 18° below horizon
Nautical dawn05:4812° below
Civil dawn06:146° below
Sunrise06:36102° ESE
Golden hour ends07:05sun 6° up
Solar noon12:2359.6° high
Golden hour starts17:41sun 6° up
Sunset18:11258° WSW
Civil dusk18:336° below
Nautical dusk18:5812° below
Astronomical dusk19:2418° below
Day length11 h 35 min

Sun path diagram for Santo Domingo

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice78910111213141516171819EquinoxDecember solstice89101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 85.0° at solar noon in Santo Domingo; on the December solstice only 48.1°. Sunrise swings from 65° ENE in June to 114° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:1412:5118:2711 h 12 min51.7°
February07:0312:5318:4211 h 39 min61.2°
March06:4212:4618:5012 h 08 min72.0°
April06:1812:3818:5812 h 40 min83.6°
May06:0412:3619:0813 h 04 min88.2°
June06:0412:4119:1813 h 14 min85.0°
July06:1312:4619:1813 h 05 min88.1°
August06:2212:4219:0212 h 39 min83.5°
September06:2812:3218:3612 h 08 min72.0°
October06:3512:2418:1211 h 38 min60.7°
November06:4912:2518:0111 h 12 min51.5°
December07:0712:3718:0811 h 01 min48.1°

A year of daylight in Santo Domingo

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Santo Domingo

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

18°collects the most energy over a year: 1665 kWh per kWp.

19°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 18°Best worst-month 19°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°159396%3.471.4×
15°1663100%4.191.2×
18° year-round best = latitude1665100%4.311.2×
19° off-grid best1665100%4.351.2×
30°163798%4.661.3×
45°151691%4.841.6×
60°131279%4.722.1×
70°113868%4.482.7×
90°77346%3.643.5×

A fixed array in Santo Domingo produces the most over a year at 18°. The design month for an off-grid system is December: at 19° it makes 4.35 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Santo Domingo at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 18° (year-round best).

0123456January: 4.49 (70°)4.5JanFebruary: 4.24 (70°)4.2FebMarch: 3.57 (70°)3.6MarApril: 2.56 (70°)2.6AprMay: 1.88 (70°)1.9MayJune: 1.66 (70°)1.7JunJuly: 1.79 (70°)1.8JulAugust: 2.21 (70°)2.2AugSeptember: 2.94 (70°)2.9SepOctober: 3.51 (70°)3.5OctNovember: 4.14 (70°)4.1NovDecember: 4.48 (70°)4.5Dec18°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 18°Mean temp.
January4.635.454.494.4824.1 °C
February5.395.154.244.9024.2 °C
March5.994.343.575.0824.6 °C
April6.193.152.564.8625.5 °C
May5.972.351.884.4526.1 °C
June6.012.101.664.3726.7 °C
July6.112.251.794.4826.9 °C
August5.922.752.214.5227.1 °C
September5.683.632.944.6227.1 °C
October5.044.313.514.3926.6 °C
November4.615.054.144.3325.6 °C
December4.405.464.484.3124.7 °C
Year5.49 avg3.83 avg1138 kWh1665 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 710 Wp of panels at 70°, versus 270 Wp at 18°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Santo Domingo

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.

2.6 mrow pitch at 70°

2.5 mrow pitch at 18°

Row spacing calculator

How Santo Domingo compares in the Dominican Republic

Against the other 44 places in the Dominican Republic with climate data, for a fixed array at its best angle.

16thof 45 places in the Dominican Republic for sunshine, shared: 5.49 peak sun hours a day on flat ground.

+1%solar energy a year compared with the average place in the Dominican Republic: 1,665 against 1,650 kWh per kWp.

−2 mindaylight on the longest day, compared with the average place in the Dominican Republic: 13 h 14 min against 13 h 16 min.

18°best year-round tilt here; across the Dominican Republic it runs from 18° in Santo Domingo to 19° in Santiago de los Caballeros.

Of the 45 places in the Dominican Republic, Santa Cruz de Barahona gets the most sun (5.59 peak sun hours a day) and Tamboril the least (5.27); Santo Domingo ranks joint 16th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.67 kWh a day here, against 1.69 kWh on average in the Dominican Republic. The shortest day lasts 11 h 01 min, +2 min compared with the average.

The sunniest places in the Dominican Republic

Solar forecast for Santo Domingo, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Santo Domingo

What is the best solar panel angle in Santo Domingo?
For a fixed array facing south, the best year-round tilt in Santo Domingo is 18°, worth about 1665 kWh per kWp a year. An off-grid system that has to get through December does better at about 19°.
What time is sunrise and sunset in Santo Domingo today?
On 24 October 2026 the sun rises at 06:36 and sets at 18:11 local time (UTC−4), giving 11 h 35 min of daylight. Solar noon is at 12:23.
How many peak sun hours does Santo Domingo get?
On a flat surface 5.5 hours a day averaged over the year, from 4.4 in December to 6.2 in April. Panels tilted at 70° receive 2.1 sun hours a day in June.
How high does the sun get in Santo Domingo?
At solar noon the sun stands 85.0° above the horizon on the June solstice and 48.1° on the December solstice.
Is Santo Domingo a good place for solar panels?
With 5.5 peak sun hours a day on flat ground, Santo Domingo ranks joint 16th of 45 places in the Dominican Republic for sunshine. A 1 kWp array at the best angle (18°) makes about 1,665 kWh a year here, 1% more than the average place in the Dominican Republic.

Places near Santo Domingo

All places in Dominican Republic

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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.