Ouest · Haiti · 18.54° N · 72.34° W
Solar position in Port-au-Prince
Sun position, daylight and the best solar panel angle for Port-au-Prince — computed for 18.54° N, 72.34° W, 27 m above sea level.
The sun right now
Sun in Port-au-Prince today
Saturday, 24 October 2026 · local time UTC−4
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:32 | sun 18° below horizon |
| Nautical dawn | 05:58 | 12° below |
| Civil dawn | 06:23 | 6° below |
| Sunrise | 06:46 | 102° ESE |
| Golden hour ends | 07:15 | sun 6° up |
| Solar noon | 12:33 | 59.5° high |
| Golden hour starts | 17:51 | sun 6° up |
| Sunset | 18:20 | 258° WSW |
| Civil dusk | 18:42 | 6° below |
| Nautical dusk | 19:08 | 12° below |
| Astronomical dusk | 19:34 | 18° below |
| Day length | 11 h 35 min | |
Sun path diagram for Port-au-Prince
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 85.1° at solar noon in Port-au-Prince; on the December solstice only 48.0°. 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 | 06:24 | 12:00 | 17:36 | 11 h 12 min | 51.7° |
| February | 06:13 | 12:03 | 17:52 | 11 h 39 min | 61.1° |
| March | 06:52 | 12:56 | 19:00 | 12 h 08 min | 71.9° |
| April | 06:28 | 12:48 | 19:08 | 12 h 40 min | 83.5° |
| May | 06:13 | 12:45 | 19:18 | 13 h 05 min | 88.3° |
| June | 06:13 | 12:51 | 19:28 | 13 h 15 min | 85.1° |
| July | 06:23 | 12:55 | 19:28 | 13 h 05 min | 88.2° |
| August | 06:32 | 12:52 | 19:12 | 12 h 40 min | 83.4° |
| September | 06:38 | 12:42 | 18:46 | 12 h 08 min | 72.0° |
| October | 06:45 | 12:33 | 18:22 | 11 h 38 min | 60.6° |
| November | 05:59 | 11:35 | 17:10 | 11 h 11 min | 51.5° |
| December | 06:16 | 11:47 | 17:18 | 11 h 01 min | 48.0° |
A year of daylight in Port-au-Prince
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 Port-au-Prince
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: 1730 kWh per kWp.
20°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 | November kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1654 | 96% | 3.73 | 1.4× |
| 15° | 1727 | 100% | 4.35 | 1.2× |
| 18° year-round best | 1730 | 100% | 4.45 | 1.1× |
| 19° = latitude | 1730 | 100% | 4.47 | 1.1× |
| 20° off-grid best | 1729 | 100% | 4.50 | 1.1× |
| 30° | 1700 | 98% | 4.71 | 1.2× |
| 45° | 1574 | 91% | 4.79 | 1.6× |
| 60° | 1360 | 79% | 4.57 | 2.1× |
| 70° | 1178 | 68% | 4.28 | 2.8× |
| 90° | 799 | 46% | 3.34 | 3.7× |
A fixed array in Port-au-Prince produces the most over a year at 18°. The design month for an off-grid system is November: at 20° it makes 4.50 kWh per kWp a day, 1% more than at 18°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Port-au-Prince at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 18° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 18° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.83 | 5.79 | 4.75 | 4.68 | 25.0 °C |
| February | 5.45 | 5.25 | 4.30 | 4.95 | 25.3 °C |
| March | 6.04 | 4.38 | 3.58 | 5.09 | 25.7 °C |
| April | 6.32 | 3.21 | 2.60 | 4.94 | 26.7 °C |
| May | 6.12 | 2.39 | 1.91 | 4.54 | 27.2 °C |
| June | 6.45 | 2.18 | 1.73 | 4.65 | 27.9 °C |
| July | 6.62 | 2.32 | 1.84 | 4.81 | 28.5 °C |
| August | 6.39 | 2.89 | 2.31 | 4.85 | 28.5 °C |
| September | 5.98 | 3.81 | 3.08 | 4.84 | 28.1 °C |
| October | 5.21 | 4.48 | 3.63 | 4.53 | 27.4 °C |
| November | 4.73 | 5.24 | 4.28 | 4.45 | 26.3 °C |
| December | 4.62 | 5.88 | 4.81 | 4.56 | 25.6 °C |
| Year | 5.73 avg | 3.98 avg | 1178 kWh | 1730 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 680 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 Port-au-Prince
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°
How Port-au-Prince compares in Haiti
Against the other 31 places in Haiti with climate data, for a fixed array at its best angle.
6thof 32 places in Haiti for sunshine, shared: 5.73 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Haiti: 1,730 against 1,712 kWh per kWp.
−1 mindaylight on the longest day, compared with the average place in Haiti: 13 h 15 min against 13 h 16 min.
18°best year-round tilt here; across Haiti it runs from 18° in Port-au-Prince to 19° in Port-de-Paix.
Of the 32 places in Haiti, Jacmel gets the most sun (5.80 peak sun hours a day) and Terrier Rouge and one other place the least (5.52); Port-au-Prince ranks joint 6th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.73 kWh a day here, against 1.73 kWh on average in Haiti. The shortest day lasts 11 h 01 min, +1 min compared with the average.
Solar forecast for Port-au-Prince, 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 Port-au-Prince
What is the best solar panel angle in Port-au-Prince?
What time is sunrise and sunset in Port-au-Prince today?
How many peak sun hours does Port-au-Prince get?
How high does the sun get in Port-au-Prince?
Is Port-au-Prince a good place for solar panels?
Places near Port-au-Prince
Put this on your site
A free, live card for Port-au-Prince: 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.