Solarposition.org

Quảng Ninh · Vietnam · 21.01° N · 107.27° E

Solar position in Cẩm Phả

Sun position, daylight and the best solar panel angle for Cẩm Phả — computed for 21.01° N, 107.27° E, 20 m above sea level.

Sunrise today05:50103° ESE
Sunset today17:19257° WSW
Best panel angle16°year-round, facing south
Off-grid angle34°best for the darkest month

The sun right now

Azimuth180.0°
Elevation56.9°
At solar noon, 11:34Open on the sun map

Sun in Cẩm Phả today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn04:35sun 18° below horizon
Nautical dawn05:0112° below
Civil dawn05:276° below
Sunrise05:50103° ESE
Golden hour ends06:20sun 6° up
Solar noon11:3456.9° high
Golden hour starts16:49sun 6° up
Sunset17:19257° WSW
Civil dusk17:426° below
Nautical dusk18:0812° below
Astronomical dusk18:3418° below
Day length11 h 29 min

Sun path diagram for Cẩm Phả

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 87.6° at solar noon in Cẩm Phả; on the December solstice only 45.6°. Sunrise swings from 64° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January06:3012:0217:3411 h 04 min49.1°
February06:1712:0417:5111 h 34 min58.4°
March05:5411:5818:0212 h 08 min69.2°
April05:2711:4918:1112 h 44 min80.9°
May05:1111:4718:2313 h 13 min89.2°
June05:1011:5218:3413 h 25 min87.6°
July05:2011:5718:3413 h 14 min89.5°
August05:3111:5418:1612 h 45 min81.1°
September05:3911:4417:4812 h 09 min69.7°
October05:4811:3517:2211 h 34 min58.3°
November06:0411:3617:0811 h 04 min49.1°
December06:2311:4817:1410 h 51 min45.6°

A year of daylight in Cẩm Phả

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 Cẩm Phả

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

16°collects the most energy over a year: 1134 kWh per kWp.

34°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 16°Best worst-month 34°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJanuary kWh/kWp/dayBest ÷ worst month
0°110297%1.902.0×
15°1134100%2.131.8×
16° year-round best1134100%2.141.7×
21° = latitude1130100%2.191.7×
30°110898%2.251.6×
34° off-grid best109296%2.261.6×
45°102690%2.251.6×
60°89479%2.141.7×
70°78369%2.001.7×
90°54948%1.602.1×

A fixed array in Cẩm Phả produces the most over a year at 16°. The design month for an off-grid system is January: at 34° it makes 2.26 kWh per kWp a day, 6% more than at 16°, and costs 4% of the yearly total. Why steep panels win winter.

Off-grid solar in Cẩm Phả at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 16° (year-round best).

01234January: 2.00 (70°)2.0JanFebruary: 1.92 (70°)1.9FebMarch: 1.70 (70°)1.7MarApril: 1.92 (70°)1.9AprMay: 1.88 (70°)1.9MayJune: 1.77 (70°)1.8JunJuly: 1.78 (70°)1.8JulAugust: 2.00 (70°)2.0AugSeptember: 2.48 (70°)2.5SepOctober: 2.84 (70°)2.8OctNovember: 2.95 (70°)2.9NovDecember: 2.49 (70°)2.5Dec16°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 16°Mean temp.
January2.362.382.002.1415.7 °C
February2.652.301.922.3017.5 °C
March2.812.081.702.3220.1 °C
April3.872.371.923.0823.5 °C
May4.862.361.883.7226.6 °C
June4.922.241.773.6828.1 °C
July4.892.241.783.6828.2 °C
August4.602.512.003.5628.0 °C
September4.513.072.483.6627.2 °C
October4.053.472.843.4924.7 °C
November3.383.552.953.1021.3 °C
December2.662.962.492.5017.0 °C
Year3.80 avg2.63 avg783 kWh1134 kWh

Sizing example. To run a 1 kWh-per-day load through March on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 690 Wp of panels at 70°, versus 550 Wp at 16°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Cẩm Phả

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.

2.7 mrow pitch at 70°

2.5 mrow pitch at 16°

Row spacing calculator

How Cẩm Phả compares in Vietnam

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

212thof 307 places in Vietnam for sunshine, shared: 3.80 peak sun hours a day on flat ground.

−14%solar energy a year compared with the average place in Vietnam: 1,134 against 1,320 kWh per kWp.

+39 mindaylight on the longest day, compared with Ho Chi Minh City: 13 h 25 min against 12 h 46 min.

16°best year-round tilt here; across Vietnam it runs from 9° in Vĩnh Châu to 21° in Dien Bien Phu.

Of the 307 places in Vietnam, Phú Quý gets the most sun (5.45 peak sun hours a day) and Thị Trấn Thất Khê and one other place the least (3.61); Cẩm Phả ranks joint 212th. In its darkest month, March, 1 kWp of off-grid panels at 70° makes 1.70 kWh a day here, against 1.53 kWh on average in Vietnam. The shortest day lasts 10 h 51 min, −38 min compared with Ho Chi Minh City.

The sunniest places in Vietnam

Solar forecast for Cẩm Phả, 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 Cẩm Phả

What is the best solar panel angle in Cẩm Phả?
For a fixed array facing south, the best year-round tilt in Cẩm Phả is 16°, worth about 1134 kWh per kWp a year. An off-grid system that has to get through January does better at about 34°.
What time is sunrise and sunset in Cẩm Phả today?
On 25 October 2026 the sun rises at 05:50 and sets at 17:19 local time (UTC+7), giving 11 h 29 min of daylight. Solar noon is at 11:34.
How many peak sun hours does Cẩm Phả get?
On a flat surface 3.8 hours a day averaged over the year, from 2.4 in January to 4.9 in June. Panels tilted at 70° receive 2.1 sun hours a day in March.
How high does the sun get in Cẩm Phả?
At solar noon the sun stands 87.6° above the horizon on the June solstice and 45.6° on the December solstice.
Is Cẩm Phả a good place for solar panels?
With 3.8 peak sun hours a day on flat ground, Cẩm Phả ranks joint 212th of 307 places in Vietnam for sunshine. A 1 kWp array at the best angle (16°) makes about 1,134 kWh a year here, 14% less than the average place in Vietnam.

Places near Cẩm Phả

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.