Eastern Cape · South Africa · 34.03° S · 24.77° E
Solar position in Humansdorp
Sun position, daylight and the best solar panel angle for Humansdorp — computed for 34.03° S, 24.77° E, 137 m above sea level.
The sun right now
Sun in Humansdorp today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 03:59 | sun 18° below horizon |
| Nautical dawn | 04:31 | 12° below |
| Civil dawn | 05:02 | 6° below |
| Sunrise | 05:28 | 105° ESE |
| Golden hour ends | 06:02 | sun 6° up |
| Solar noon | 12:05 | 67.8° high |
| Golden hour starts | 18:08 | sun 6° up |
| Sunset | 18:42 | 255° WSW |
| Civil dusk | 19:08 | 6° below |
| Nautical dusk | 19:39 | 12° below |
| Astronomical dusk | 20:11 | 18° below |
| Day length | 13 h 13 min | |
Sun path diagram for Humansdorp
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 32.6° at solar noon in Humansdorp; on the December solstice only 79.4°. Sunrise swings from 62° ENE in June to 119° ESE in December — a 57° 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 05:31 | 12:32 | 19:32 | 14 h 02 min | 75.8° |
| February | 06:01 | 12:34 | 19:06 | 13 h 06 min | 66.5° |
| March | 06:24 | 12:27 | 18:30 | 12 h 06 min | 55.7° |
| April | 06:48 | 12:19 | 17:50 | 11 h 03 min | 44.0° |
| May | 07:10 | 12:17 | 17:24 | 10 h 14 min | 35.8° |
| June | 07:26 | 12:22 | 17:19 | 9 h 53 min | 32.6° |
| July | 07:21 | 12:27 | 17:33 | 10 h 12 min | 35.6° |
| August | 06:53 | 12:24 | 17:55 | 11 h 02 min | 44.0° |
| September | 06:12 | 12:14 | 18:16 | 12 h 05 min | 55.4° |
| October | 05:32 | 12:05 | 18:39 | 13 h 07 min | 66.8° |
| November | 05:05 | 12:06 | 19:08 | 14 h 03 min | 75.9° |
| December | 05:06 | 12:18 | 19:31 | 14 h 26 min | 79.4° |
A year of daylight in Humansdorp
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Humansdorp
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
31°collects the most energy over a year: 1682 kWh per kWp.
55°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1470 | 87% | 2.07 | 2.9× |
| 15° | 1625 | 97% | 2.86 | 2.0× |
| 30° | 1682 | 100% | 3.46 | 1.6× |
| 31° year-round best | 1682 | 100% | 3.49 | 1.5× |
| 34° = latitude | 1680 | 100% | 3.58 | 1.5× |
| 45° | 1638 | 97% | 3.84 | 1.3× |
| 55° off-grid best | 1555 | 92% | 3.96 | 1.2× |
| 60° | 1499 | 89% | 3.97 | 1.3× |
| 70° | 1358 | 81% | 3.92 | 1.5× |
| 90° | 988 | 59% | 3.49 | 2.5× |
A fixed array in Humansdorp produces the most over a year at 31°. The design month for an off-grid system is June: at 55° it makes 3.96 kWh per kWp a day, 13% more than at 31°, and costs 8% of the yearly total. Why steep panels win winter.
Off-grid solar in Humansdorp at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 31° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 31° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.11 | 3.62 | 2.99 | 5.27 | 21.9 °C |
| February | 6.33 | 4.21 | 3.48 | 5.17 | 22.2 °C |
| March | 5.30 | 4.77 | 3.97 | 4.92 | 21.1 °C |
| April | 3.98 | 4.84 | 4.06 | 4.28 | 19.1 °C |
| May | 3.02 | 4.61 | 3.89 | 3.68 | 17.6 °C |
| June | 2.61 | 4.60 | 3.92 | 3.49 | 15.6 °C |
| July | 2.84 | 4.78 | 4.08 | 3.71 | 15.2 °C |
| August | 3.66 | 5.02 | 4.28 | 4.26 | 15.4 °C |
| September | 4.84 | 4.94 | 4.19 | 4.83 | 16.5 °C |
| October | 5.88 | 4.40 | 3.70 | 5.10 | 17.9 °C |
| November | 6.83 | 3.81 | 3.18 | 5.29 | 19.1 °C |
| December | 7.35 | 3.48 | 2.88 | 5.33 | 20.8 °C |
| Year | 4.97 avg | 4.42 avg | 1358 kWh | 1682 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 410 Wp of panels at 70°, versus 340 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Humansdorp
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.
4.0 mrow pitch at 70°
3.5 mrow pitch at 31°
How Humansdorp compares in South Africa
Against the other 294 places in South Africa with climate data, for a fixed array at its best angle.
249thof 295 places in South Africa for sunshine, shared: 4.97 peak sun hours a day on flat ground.
−7%solar energy a year compared with the average place in South Africa: 1,682 against 1,806 kWh per kWp.
+39 mindaylight on the longest day, compared with Johannesburg: 14 h 26 min against 13 h 47 min.
31°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); Humansdorp ranks joint 249th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.88 kWh a day here, against 2.42 kWh on average in South Africa. The shortest day lasts 9 h 53 min, −37 min compared with Johannesburg.
Solar forecast for Humansdorp, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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Questions about the sun in Humansdorp
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Places near Humansdorp
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A free, live card for Humansdorp: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
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.