Solarposition.org

Thailand · 13.41° N · 100.00° E

Solar position in Samut Songkhram

Sun position, daylight and the best solar panel angle for Samut Songkhram — computed for 13.41° N, 100.00° E, 7 m above sea level.

Sunrise today06:12102° ESE
Sunset today17:55258° WSW
Best panel angle15°year-round, facing south
Off-grid angle8°best for the darkest month

The sun right now

Azimuth180.0°
Elevation64.5°
At solar noon, 12:04Open on the sun map

Sun in Samut Songkhram today

Sunday, 25 October 2026 · local time UTC+7

EventTimeDirection / height
Astronomical dawn05:00sun 18° below horizon
Nautical dawn05:2512° below
Civil dawn05:506° below
Sunrise06:12102° ESE
Golden hour ends06:41sun 6° up
Solar noon12:0464.5° high
Golden hour starts17:26sun 6° up
Sunset17:55258° WSW
Civil dusk18:176° below
Nautical dusk18:4212° below
Astronomical dusk19:0718° below
Day length11 h 43 min

Sun path diagram for Samut Songkhram

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 solstice789101112131415161718EquinoxDecember solstice7891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 80.0° at solar noon in Samut Songkhram; on the December solstice only 53.2°. 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
January06:4712:3118:1511 h 28 min56.7°
February06:4012:3318:2611 h 47 min66.0°
March06:2312:2718:3012 h 07 min76.8°
April06:0312:1818:3312 h 30 min88.5°
May05:5212:1618:4012 h 48 min83.2°
June05:5412:2118:4912 h 55 min80.0°
July06:0212:2618:5012 h 48 min83.0°
August06:0712:2318:3812 h 30 min88.7°
September06:0912:1318:1712 h 08 min77.3°
October06:1112:0417:5711 h 46 min65.9°
November06:2112:0517:4911 h 28 min56.7°
December06:3712:1717:5811 h 20 min53.2°

A year of daylight in Samut Songkhram

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 Samut Songkhram

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

15°collects the most energy over a year: 1498 kWh per kWp.

8°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 15°Best worst-month 8°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0°146097%3.821.3×
8° off-grid best149099%3.721.3×
13° = latitude1498100%3.641.3×
15° year-round best1498100%3.601.3×
30°145697%3.201.5×
45°133689%2.651.8×
60°114777%1.992.3×
70°99266%1.552.8×
90°68946%1.163.0×

A fixed array in Samut Songkhram produces the most over a year at 15°. The design month for an off-grid system is July: at 8° it makes 3.72 kWh per kWp a day, 4% more than at 15°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Samut Songkhram at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 15° (year-round best).

012345January: 4.14 (70°)4.1JanFebruary: 3.71 (70°)3.7FebMarch: 2.99 (70°)3.0MarApril: 2.26 (70°)2.3AprMay: 1.68 (70°)1.7MayJune: 1.51 (70°)1.5JunJuly: 1.55 (70°)1.6JulAugust: 1.86 (70°)1.9AugSeptember: 2.35 (70°)2.3SepOctober: 2.79 (70°)2.8OctNovember: 3.64 (70°)3.6NovDecember: 4.20 (70°)4.2Dec15°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 15°Mean temp.
January4.925.044.144.4424.9 °C
February5.414.563.714.6327.0 °C
March5.633.712.994.5628.5 °C
April5.992.842.264.5929.6 °C
May5.382.131.684.0028.5 °C
June5.051.911.513.7227.5 °C
July4.831.961.553.6026.9 °C
August4.782.331.863.6626.8 °C
September4.802.912.353.8226.4 °C
October4.543.422.793.7826.0 °C
November4.704.443.644.1525.1 °C
December4.745.104.204.3524.0 °C
Year5.06 avg3.36 avg992 kWh1498 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 780 Wp of panels at 70°, versus 330 Wp at 15°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Samut Songkhram

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.

2.3 mrow pitch at 70°

2.4 mrow pitch at 15°

Row spacing calculator

How Samut Songkhram compares in Thailand

Against the other 294 places in Thailand with climate data, for a fixed array at its best angle.

165thof 295 places in Thailand for sunshine, shared: 5.06 peak sun hours a day on flat ground.

−1%solar energy a year compared with the average place in Thailand: 1,498 against 1,509 kWh per kWp.

−1 mindaylight on the longest day, compared with Bangkok: 12 h 55 min against 12 h 56 min.

15°best year-round tilt here; across Thailand it runs from 4° in Narathiwat to 23° in Mae Chan.

Of the 295 places in Thailand, Bangkok and 7 other places get the most sun (5.23 peak sun hours a day) and Mae Ramat the least (4.74); Samut Songkhram ranks joint 165th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.51 kWh a day here, against 1.53 kWh on average in Thailand. The shortest day lasts 11 h 20 min, +1 min compared with Bangkok.

The sunniest places in Thailand

Solar forecast for Samut Songkhram, 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 Samut Songkhram

What is the best solar panel angle in Samut Songkhram?
For a fixed array facing south, the best year-round tilt in Samut Songkhram is 15°, worth about 1498 kWh per kWp a year. An off-grid system that has to get through July does better at about 8°.
What time is sunrise and sunset in Samut Songkhram today?
On 25 October 2026 the sun rises at 06:12 and sets at 17:55 local time (UTC+7), giving 11 h 43 min of daylight. Solar noon is at 12:04.
How many peak sun hours does Samut Songkhram get?
On a flat surface 5.1 hours a day averaged over the year, from 4.5 in October to 6.0 in April. Panels tilted at 70° receive 1.9 sun hours a day in June.
How high does the sun get in Samut Songkhram?
At solar noon the sun stands 80.0° above the horizon on the June solstice and 53.2° on the December solstice.
Is Samut Songkhram a good place for solar panels?
With 5.1 peak sun hours a day on flat ground, Samut Songkhram ranks joint 165th of 295 places in Thailand for sunshine. A 1 kWp array at the best angle (15°) makes about 1,498 kWh a year here, 1% less than the average place in Thailand.

Places near Samut Songkhram

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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.