Solarposition.org

Ca Mau · Vietnam · 8.76° N · 104.99° E

Solar position in Năm Căn

Sun position, daylight and the best solar panel angle for Năm Căn — computed for 8.76° N, 104.99° E, 5 m above sea level.

Sunrise today05:48102° ESE
Sunset today17:39258° WSW
Best panel angle9°year-round, facing south
Off-grid angle0°best for the darkest month

The sun right now

Azimuth180.0°
Elevation69.2°
At solar noon, 11:44Open on the sun map

Sun in Năm Căn today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn04:37sun 18° below horizon
Nautical dawn05:0212° below
Civil dawn05:266° below
Sunrise05:48102° ESE
Golden hour ends06:16sun 6° up
Solar noon11:4469.2° high
Golden hour starts17:11sun 6° up
Sunset17:39258° WSW
Civil dusk18:016° below
Nautical dusk18:2612° below
Astronomical dusk18:5018° below
Day length11 h 52 min

Sun path diagram for Năm Căn

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 75.3° at solar noon in Năm Căn; on the December solstice only 57.8°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 47° 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
January06:2012:1118:0211 h 42 min61.4°
February06:1612:1318:1011 h 54 min70.7°
March06:0312:0718:1012 h 07 min81.5°
April05:4811:5818:0912 h 22 min86.9°
May05:4011:5618:1312 h 33 min78.6°
June05:4212:0118:2012 h 38 min75.3°
July05:4912:0618:2312 h 34 min78.3°
August05:5212:0318:1412 h 22 min86.7°
September05:4911:5317:5612 h 07 min81.9°
October05:4711:4417:4111 h 53 min70.6°
November05:5411:4517:3611 h 42 min61.3°
December06:0911:5717:4611 h 37 min57.8°

A year of daylight in Năm Căn

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 Năm Căn

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: 1472 kWh per kWp.

0°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 0°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0° off-grid best145899%3.551.4×
9° year-round best = latitude1472100%3.411.5×
15°1466100%3.281.5×
30°139595%2.841.7×
45°125085%2.262.1×
60°104271%1.612.7×
70°88160%1.213.2×
90°59941%1.002.8×

A fixed array in Năm Căn produces the most over a year at 9°. The design month for an off-grid system is July: at 0° it makes 3.55 kWh per kWp a day, 4% more than at 9°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Năm Căn at 70°

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

0123456January: 3.76 (70°)3.8JanFebruary: 3.70 (70°)3.7FebMarch: 2.98 (70°)3.0MarApril: 1.98 (70°)2.0AprMay: 1.34 (70°)1.3MayJune: 1.17 (70°)1.2JunJuly: 1.21 (70°)1.2JulAugust: 1.54 (70°)1.5AugSeptember: 2.01 (70°)2.0SepOctober: 2.60 (70°)2.6OctNovember: 3.24 (70°)3.2NovDecember: 3.51 (70°)3.5Dec9°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 9°Mean temp.
January5.024.603.764.2525.9 °C
February5.844.533.704.8526.4 °C
March6.213.692.984.9827.7 °C
April6.192.491.984.7929.0 °C
May5.241.721.343.9629.1 °C
June4.671.511.173.5028.5 °C
July4.511.561.213.4128.0 °C
August4.731.951.543.6427.9 °C
September4.572.512.013.6127.8 °C
October4.603.222.603.7327.6 °C
November4.684.003.243.8927.3 °C
December4.594.303.513.8826.5 °C
Year5.06 avg3.00 avg881 kWh1472 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 1,010 Wp of panels at 70°, versus 350 Wp at 9°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Năm Căn

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.

2.0 mrow pitch at 70°

2.2 mrow pitch at 9°

Row spacing calculator

How Năm Căn compares in Vietnam

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

89thof 307 places in Vietnam for sunshine, shared: 5.07 peak sun hours a day on flat ground.

+12%solar energy a year compared with the average place in Vietnam: 1,472 against 1,320 kWh per kWp.

−7 mindaylight on the longest day, compared with Ho Chi Minh City: 12 h 38 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.

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); Năm Căn ranks joint 89th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.17 kWh a day here, against 1.53 kWh on average in Vietnam. The shortest day lasts 11 h 37 min, +7 min compared with Ho Chi Minh City.

The sunniest places in Vietnam

Solar forecast for Năm Căn, 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 Năm Căn

What is the best solar panel angle in Năm Căn?
For a fixed array facing south, the best year-round tilt in Năm Căn is 9°, worth about 1472 kWh per kWp a year. An off-grid system that has to get through July does better at about 0°.
What time is sunrise and sunset in Năm Căn today?
On 25 October 2026 the sun rises at 05:48 and sets at 17:39 local time (UTC+7), giving 11 h 52 min of daylight. Solar noon is at 11:44.
How many peak sun hours does Năm Căn get?
On a flat surface 5.1 hours a day averaged over the year, from 4.5 in July to 6.2 in March. Panels tilted at 70° receive 1.5 sun hours a day in June.
How high does the sun get in Năm Căn?
At solar noon the sun stands 75.3° above the horizon on the June solstice and 57.8° on the December solstice.
Is Năm Căn a good place for solar panels?
With 5.1 peak sun hours a day on flat ground, Năm Căn ranks joint 89th of 307 places in Vietnam for sunshine. A 1 kWp array at the best angle (9°) makes about 1,472 kWh a year here, 12% more than the average place in Vietnam.

Places near Năm Căn

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.