Solarposition.org

Ho Chi Minh City (HCMC) · Vietnam · 10.41° N · 106.95° E

Solar position in Cần Giờ

Sun position, daylight and the best solar panel angle for Cần Giờ — computed for 10.41° N, 106.95° E, 5 m above sea level.

Sunrise today05:41102° ESE
Sunset today17:30258° WSW
Best panel angle11°year-round, facing south
Off-grid angle6°best for the darkest month

The sun right now

Azimuth180.0°
Elevation67.5°
At solar noon, 11:36Open on the sun map

Sun in Cần Giờ today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn04:30sun 18° below horizon
Nautical dawn04:5512° below
Civil dawn05:206° below
Sunrise05:41102° ESE
Golden hour ends06:10sun 6° up
Solar noon11:3667.5° high
Golden hour starts17:02sun 6° up
Sunset17:30258° WSW
Civil dusk17:526° below
Nautical dusk18:1612° below
Astronomical dusk18:4118° below
Day length11 h 49 min

Sun path diagram for Cần Giờ

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 77.0° at solar noon in Cần Giờ; on the December solstice only 56.2°. 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
January06:1512:0317:5111 h 37 min59.7°
February06:1012:0518:0111 h 51 min69.0°
March05:5611:5918:0212 h 07 min79.8°
April05:3811:5018:0312 h 24 min88.6°
May05:2911:4818:0712 h 38 min80.2°
June05:3111:5318:1512 h 44 min77.0°
July05:3911:5818:1712 h 39 min79.9°
August05:4211:5518:0712 h 25 min88.3°
September05:4111:4517:4912 h 08 min80.3°
October05:4111:3617:3211 h 51 min68.9°
November05:4911:3717:2611 h 37 min59.7°
December06:0411:5017:3511 h 31 min56.2°

A year of daylight in Cần Giờ

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 Cần Giờ

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

11°collects the most energy over a year: 1548 kWh per kWp.

6°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 11°Best worst-month 6°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°152699%3.971.4×
6° off-grid best1544100%3.871.3×
10° = latitude1548100%3.781.3×
11° year-round best1548100%3.751.4×
15°1545100%3.641.4×
30°147996%3.121.7×
45°133386%2.452.0×
60°111872%1.712.6×
70°94961%1.273.2×
90°64342%1.063.0×

A fixed array in Cần Giờ produces the most over a year at 11°. The design month for an off-grid system is June: at 6° it makes 3.87 kWh per kWp a day, 3% more than at 11°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Cần Giờ at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 11° (year-round best).

0123456January: 4.05 (70°)4.1JanFebruary: 3.95 (70°)3.9FebMarch: 3.11 (70°)3.1MarApril: 2.06 (70°)2.1AprMay: 1.43 (70°)1.4MayJune: 1.27 (70°)1.3JunJuly: 1.35 (70°)1.4JulAugust: 1.70 (70°)1.7AugSeptember: 2.26 (70°)2.3SepOctober: 2.86 (70°)2.9OctNovember: 3.50 (70°)3.5NovDecember: 3.74 (70°)3.7Dec11°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 11°Mean temp.
January5.114.954.054.4325.7 °C
February5.974.843.955.0326.5 °C
March6.283.853.115.0727.9 °C
April6.262.592.064.8229.2 °C
May5.481.831.434.1129.1 °C
June5.041.631.273.7528.1 °C
July5.041.721.353.7827.4 °C
August5.092.141.703.9127.4 °C
September4.982.812.263.9527.3 °C
October4.893.522.864.0127.2 °C
November4.814.303.504.0926.8 °C
December4.634.573.744.0126.0 °C
Year5.29 avg3.22 avg949 kWh1548 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 930 Wp of panels at 70°, versus 310 Wp at 11°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Cần Giờ

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°

2.3 mrow pitch at 11°

Row spacing calculator

How Cần Giờ compares in Vietnam

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

14thof 307 places in Vietnam for sunshine, shared: 5.29 peak sun hours a day on flat ground.

+17%solar energy a year compared with the average place in Vietnam: 1,548 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.

11°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); Cần Giờ ranks joint 14th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.27 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 Cần Giờ, 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 Cần Giờ

What is the best solar panel angle in Cần Giờ?
For a fixed array facing south, the best year-round tilt in Cần Giờ is 11°, worth about 1548 kWh per kWp a year. An off-grid system that has to get through June does better at about 6°.
What time is sunrise and sunset in Cần Giờ today?
On 25 October 2026 the sun rises at 05:41 and sets at 17:30 local time (UTC+7), giving 11 h 49 min of daylight. Solar noon is at 11:36.
How many peak sun hours does Cần Giờ get?
On a flat surface 5.3 hours a day averaged over the year, from 4.6 in December to 6.3 in March. Panels tilted at 70° receive 1.6 sun hours a day in June.
How high does the sun get in Cần Giờ?
At solar noon the sun stands 77.0° above the horizon on the June solstice and 56.2° on the December solstice.
Is Cần Giờ a good place for solar panels?
With 5.3 peak sun hours a day on flat ground, Cần Giờ ranks joint 14th of 307 places in Vietnam for sunshine. A 1 kWp array at the best angle (11°) makes about 1,548 kWh a year here, 17% more than the average place in Vietnam.

Places near Cần Giờ

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.