Solarposition.org

Lam Dong · Vietnam · 10.52° N · 108.93° E

Solar position in Phú Quý

Sun position, daylight and the best solar panel angle for Phú Quý — computed for 10.52° N, 108.93° E, 6 m above sea level.

Sunrise today05:34102° ESE
Sunset today17:22258° WSW
Best panel angle9°year-round, facing south
Off-grid angle19°best for the darkest month

The sun right now

Azimuth180.0°
Elevation67.4°
At solar noon, 11:28Open on the sun map

Sun in Phú Quý today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn04:22sun 18° below horizon
Nautical dawn04:4712° below
Civil dawn05:126° below
Sunrise05:34102° ESE
Golden hour ends06:02sun 6° up
Solar noon11:2867.4° high
Golden hour starts16:54sun 6° up
Sunset17:22258° WSW
Civil dusk17:446° below
Nautical dusk18:0812° below
Astronomical dusk18:3318° below
Day length11 h 49 min

Sun path diagram for Phú Quý

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 solstice6789101112131415161718EquinoxDecember solstice7891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 77.1° at solar noon in Phú Quý; on the December solstice only 56.1°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January06:0711:5517:4311 h 37 min59.6°
February06:0211:5717:5311 h 51 min68.9°
March05:4811:5117:5512 h 07 min79.7°
April05:3011:4317:5512 h 25 min88.7°
May05:2111:4018:0012 h 39 min80.3°
June05:2311:4618:0812 h 44 min77.1°
July05:3111:5018:1012 h 39 min80.1°
August05:3411:4717:5912 h 25 min88.4°
September05:3311:3717:4112 h 08 min80.2°
October05:3311:2817:2411 h 51 min68.8°
November05:4111:2917:1811 h 36 min59.6°
December05:5611:4217:2711 h 31 min56.1°

A year of daylight in Phú Quý

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 Phú Quý

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

9°collects the most energy over a year: 1591 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 9°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°157499%3.341.6×
9° year-round best1591100%3.591.4×
11° = latitude1590100%3.641.4×
15°1584100%3.721.4×
19° off-grid best157299%3.791.4×
30°150695%3.901.6×
45°134585%3.871.9×
60°111470%3.622.6×
70°93559%3.343.2×
90°62539%2.553.0×

A fixed array in Phú Quý produces the most over a year at 9°. The design month for an off-grid system is December: at 19° it makes 3.79 kWh per kWp a day, 6% more than at 9°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Phú Quý at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 9° (year-round best).

0123456January: 3.92 (70°)3.9JanFebruary: 3.97 (70°)4.0FebMarch: 3.19 (70°)3.2MarApril: 2.11 (70°)2.1AprMay: 1.42 (70°)1.4MayJune: 1.24 (70°)1.2JunJuly: 1.37 (70°)1.4JulAugust: 1.76 (70°)1.8AugSeptember: 2.39 (70°)2.4SepOctober: 2.86 (70°)2.9OctNovember: 3.29 (70°)3.3NovDecember: 3.34 (70°)3.3Dec9°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 9°Mean temp.
January4.964.773.924.2525.0 °C
February5.954.843.975.0025.3 °C
March6.413.913.195.2026.4 °C
April6.602.632.115.1427.9 °C
May5.991.811.424.5328.8 °C
June5.471.601.244.1028.5 °C
July5.471.741.374.1428.1 °C
August5.622.221.764.3428.0 °C
September5.392.982.394.2727.9 °C
October4.883.532.863.9927.6 °C
November4.544.053.293.8127.0 °C
December4.224.093.343.5925.8 °C
Year5.45 avg3.17 avg935 kWh1591 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 950 Wp of panels at 70°, versus 330 Wp at 9°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Phú Quý

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.

2.1 mrow pitch at 70°

2.2 mrow pitch at 9°

Row spacing calculator

How Phú Quý compares in Vietnam

Against the other 306 places in Vietnam with climate data, for a fixed array at its best angle.

1stof 307 places in Vietnam for sunshine: 5.45 peak sun hours a day on flat ground.

+20%solar energy a year compared with the average place in Vietnam: 1,591 against 1,320 kWh per kWp.

−1 mindaylight on the longest day, compared with Ho Chi Minh City: 12 h 44 min against 12 h 46 min.

9°best year-round tilt here; across Vietnam it runs from 9° in Vĩnh Châu to 21° in Dien Bien Phu.

Phú Quý gets the most sun of the 307 places in Vietnam (5.45 peak sun hours a day); the least sunny are Thị Trấn Thất Khê and one other place with 3.61. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.24 kWh a day here, against 1.53 kWh on average in Vietnam. The shortest day lasts 11 h 31 min, +1 min compared with Ho Chi Minh City.

The sunniest places in Vietnam

Solar forecast for Phú Quý, 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 Phú Quý

What is the best solar panel angle in Phú Quý?
For a fixed array facing south, the best year-round tilt in Phú Quý is 9°, worth about 1591 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 Phú Quý today?
On 25 October 2026 the sun rises at 05:34 and sets at 17:22 local time (UTC+7), giving 11 h 49 min of daylight. Solar noon is at 11:28.
How many peak sun hours does Phú Quý get?
On a flat surface 5.5 hours a day averaged over the year, from 4.2 in December to 6.6 in April. Panels tilted at 70° receive 1.6 sun hours a day in June.
How high does the sun get in Phú Quý?
At solar noon the sun stands 77.1° above the horizon on the June solstice and 56.1° on the December solstice.
Is Phú Quý a good place for solar panels?
With 5.5 peak sun hours a day on flat ground, Phú Quý ranks 1st of 307 places in Vietnam for sunshine. A 1 kWp array at the best angle (9°) makes about 1,591 kWh a year here, 20% more than the average place in Vietnam.

Places near Phú Quý

All places in Vietnam

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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.