Solarposition.org

Northern Cape · South Africa · 28.33° S · 23.07° E

Solar position in Postmasburg

Sun position, daylight and the best solar panel angle for Postmasburg — computed for 28.33° S, 23.07° E, 1305 m above sea level.

Sunrise today05:42104° ESE
Sunset today18:41256° WSW
Best panel angle29°year-round, facing north
Off-grid angle34°best for the darkest month

The sun right now

Azimuth180.0°
Elevation73.5°
At solar noon, 12:12Open on the sun map

Sun in Postmasburg today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn04:19sun 18° below horizon
Nautical dawn04:4912° below
Civil dawn05:186° below
Sunrise05:42104° ESE
Golden hour ends06:14sun 6° up
Solar noon12:1273.5° high
Golden hour starts18:10sun 6° up
Sunset18:41256° WSW
Civil dusk19:066° below
Nautical dusk19:3512° below
Astronomical dusk20:0418° below
Day length13 h 00 min

Sun path diagram for Postmasburg

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 solstice891011121314151617EquinoxDecember solstice678910111213141516171819Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 38.2° at solar noon in Postmasburg; on the December solstice only 85.1°. Sunrise swings from 64° ENE in June to 117° ESE in December — a 54° 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
January05:4912:3819:2713 h 38 min81.5°
February06:1412:4119:0712 h 53 min72.1°
March06:3112:3418:3712 h 06 min61.3°
April06:4812:2618:0311 h 15 min49.7°
May07:0512:2417:4210 h 37 min41.4°
June07:1912:2917:3910 h 20 min38.2°
July07:1612:3417:5210 h 36 min41.3°
August06:5312:3118:0811 h 15 min49.6°
September06:1812:2018:2312 h 05 min61.1°
October05:4512:1218:3912 h 55 min72.4°
November05:2412:1319:0313 h 39 min81.6°
December05:2712:2519:2413 h 57 min85.1°

A year of daylight in Postmasburg

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 Postmasburg

Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

29°collects the most energy over a year: 2008 kWh per kWp.

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

10%20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 29°Best worst-month 34°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°178689%3.072.1×
15°195897%4.191.5×
28° = latitude2008100%4.931.2×
29° year-round best2008100%4.981.2×
30°2008100%5.021.2×
34° off-grid best2000100%5.191.2×
45°193596%5.521.3×
60°174687%5.661.8×
70°156378%5.552.3×
90°110255%4.844.9×

A fixed array in Postmasburg produces the most over a year at 29°. The design month for an off-grid system is June: at 34° it makes 5.19 kWh per kWp a day, 4% more than at 29°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Postmasburg at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 29° (year-round best).

01234567January: 2.62 (70°)2.6JanFebruary: 3.26 (70°)3.3FebMarch: 4.10 (70°)4.1MarApril: 4.76 (70°)4.8AprMay: 5.34 (70°)5.3MayJune: 5.55 (70°)5.5JunJuly: 5.79 (70°)5.8JulAugust: 5.60 (70°)5.6AugSeptember: 4.92 (70°)4.9SepOctober: 3.90 (70°)3.9OctNovember: 2.98 (70°)3.0NovDecember: 2.49 (70°)2.5Dec29°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 29°Mean temp.
January7.803.242.625.4426.3 °C
February6.963.993.265.3925.4 °C
March6.194.974.105.4623.2 °C
April5.015.654.765.2018.6 °C
May4.226.265.345.1014.6 °C
June3.766.405.554.9810.6 °C
July4.096.675.795.3010.3 °C
August4.996.515.605.7012.5 °C
September6.185.814.925.9717.0 °C
October7.244.683.905.9820.8 °C
November8.093.632.985.8723.2 °C
December8.293.082.495.6225.5 °C
Year6.07 avg5.08 avg1563 kWh2008 kWh

Sizing example. To run a 1 kWh-per-day load through December on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 470 Wp of panels at 70°, versus 240 Wp at 29°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Postmasburg

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.

3.4 mrow pitch at 70°

3.1 mrow pitch at 29°

Row spacing calculator

How Postmasburg compares in South Africa

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

2ndof 295 places in South Africa for sunshine: 6.07 peak sun hours a day on flat ground.

+11%solar energy a year compared with the average place in South Africa: 2,008 against 1,806 kWh per kWp.

+10 mindaylight on the longest day, compared with Johannesburg: 13 h 57 min against 13 h 47 min.

29°best year-round tilt here; across South Africa it runs from 24° in Thohoyandou to 32° in East London.

Of the 295 places in South Africa, Upington gets the most sun (6.28 peak sun hours a day) and Port Shepstone the least (4.46); Postmasburg ranks 2nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.49 kWh a day here, against 2.42 kWh on average in South Africa. The shortest day lasts 10 h 20 min, −9 min compared with Johannesburg.

The sunniest places in South Africa

Solar forecast for Postmasburg, 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 Postmasburg

What is the best solar panel angle in Postmasburg?
For a fixed array facing north, the best year-round tilt in Postmasburg is 29°, worth about 2008 kWh per kWp a year. An off-grid system that has to get through June does better at about 34°.
What time is sunrise and sunset in Postmasburg today?
On 24 October 2026 the sun rises at 05:42 and sets at 18:41 local time (UTC+2), giving 13 h 00 min of daylight. Solar noon is at 12:12.
How many peak sun hours does Postmasburg get?
On a flat surface 6.1 hours a day averaged over the year, from 3.8 in June to 8.3 in December. Panels tilted at 70° receive 3.1 sun hours a day in December.
How high does the sun get in Postmasburg?
At solar noon the sun stands 38.2° above the horizon on the June solstice and 85.1° on the December solstice.
Is Postmasburg a good place for solar panels?
With 6.1 peak sun hours a day on flat ground, Postmasburg ranks 2nd of 295 places in South Africa for sunshine. A 1 kWp array at the best angle (29°) makes about 2,008 kWh a year here, 11% more than the average place in South Africa.

Places near Postmasburg

All places in South Africa

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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.