Lusaka Province · Zambia · 15.39° S · 28.42° E
Solar position in Ntandabale
Sun position, daylight and the best solar panel angle for Ntandabale — computed for 15.39° S, 28.42° E, 1211 m above sea level.
The sun right now
Sun in Ntandabale today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:20 | sun 18° below horizon |
| Nautical dawn | 04:46 | 12° below |
| Civil dawn | 05:11 | 6° below |
| Sunrise | 05:33 | 102° ESE |
| Golden hour ends | 06:02 | sun 6° up |
| Solar noon | 11:50 | 86.4° high |
| Golden hour starts | 17:38 | sun 6° up |
| Sunset | 18:07 | 257° WSW |
| Civil dusk | 18:29 | 6° below |
| Nautical dusk | 18:55 | 12° below |
| Astronomical dusk | 19:21 | 18° below |
| Day length | 12 h 33 min | |
Sun path diagram for Ntandabale
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 51.2° at solar noon in Ntandabale; on the December solstice only 82.0°. Sunrise swings from 66° ENE in June to 115° ESE in December — a 49° 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 | 05:50 | 12:17 | 18:44 | 12 h 53 min | 85.5° |
| February | 06:04 | 12:19 | 18:34 | 12 h 30 min | 85.1° |
| March | 06:10 | 12:13 | 18:16 | 12 h 06 min | 74.3° |
| April | 06:14 | 12:04 | 17:55 | 11 h 40 min | 62.7° |
| May | 06:22 | 12:02 | 17:43 | 11 h 21 min | 54.4° |
| June | 06:31 | 12:08 | 17:44 | 11 h 13 min | 51.2° |
| July | 06:32 | 12:12 | 17:53 | 11 h 20 min | 54.2° |
| August | 06:19 | 12:09 | 17:59 | 11 h 40 min | 62.6° |
| September | 05:56 | 11:59 | 18:02 | 12 h 05 min | 74.0° |
| October | 05:35 | 11:50 | 18:06 | 12 h 31 min | 85.4° |
| November | 05:25 | 11:52 | 18:18 | 12 h 53 min | 85.4° |
| December | 05:33 | 12:04 | 18:35 | 13 h 03 min | 82.0° |
A year of daylight in Ntandabale
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 Ntandabale
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
19°collects the most energy over a year: 1767 kWh per kWp.
7°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 | January kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1685 | 95% | 4.48 | 1.4× |
| 7° off-grid best | 1734 | 98% | 4.39 | 1.2× |
| 15° = latitude | 1764 | 100% | 4.22 | 1.3× |
| 19° year-round best | 1767 | 100% | 4.11 | 1.3× |
| 30° | 1739 | 98% | 3.73 | 1.5× |
| 45° | 1615 | 91% | 3.06 | 1.9× |
| 60° | 1400 | 79% | 2.27 | 2.5× |
| 70° | 1216 | 69% | 1.74 | 3.1× |
| 90° | 832 | 47% | 1.21 | 3.9× |
A fixed array in Ntandabale produces the most over a year at 19°. The design month for an off-grid system is January: at 7° it makes 4.39 kWh per kWp a day, 7% more than at 19°, and costs 2% of the yearly total. Why steep panels win winter.
Off-grid solar in Ntandabale at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 19° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 19° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.58 | 2.15 | 1.74 | 4.11 | 23.2 °C |
| February | 5.64 | 2.68 | 2.18 | 4.35 | 22.8 °C |
| March | 5.62 | 3.47 | 2.86 | 4.58 | 22.6 °C |
| April | 5.54 | 4.63 | 3.85 | 4.91 | 21.8 °C |
| May | 5.38 | 5.85 | 4.90 | 5.21 | 20.2 °C |
| June | 4.90 | 5.95 | 5.02 | 4.96 | 18.2 °C |
| July | 5.07 | 5.88 | 4.97 | 5.06 | 17.7 °C |
| August | 5.87 | 5.64 | 4.71 | 5.47 | 20.6 °C |
| September | 6.51 | 4.54 | 3.74 | 5.50 | 24.2 °C |
| October | 6.84 | 3.21 | 2.59 | 5.26 | 27.1 °C |
| November | 6.28 | 2.19 | 1.75 | 4.56 | 26.6 °C |
| December | 5.69 | 2.00 | 1.60 | 4.11 | 24.0 °C |
| Year | 5.74 avg | 4.02 avg | 1216 kWh | 1767 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 740 Wp of panels at 70°, versus 290 Wp at 19°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Ntandabale
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.
2.4 mrow pitch at 70°
2.5 mrow pitch at 19°
How Ntandabale compares in Zambia
Against the other 76 places in Zambia with climate data, for a fixed array at its best angle.
41stof 77 places in Zambia for sunshine, shared: 5.74 peak sun hours a day on flat ground.
±0%solar energy a year compared with the average place in Zambia: 1,767 against 1,761 kWh per kWp.
±0 mindaylight on the longest day, compared with Lusaka: 13 h 03 min against 13 h 03 min.
19°best year-round tilt here; across Zambia it runs from 13° in Nakonde to 21° in Livingstone.
Of the 77 places in Zambia, Sesheke gets the most sun (5.94 peak sun hours a day) and Mwinilunga the least (5.48); Ntandabale ranks joint 41st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.60 kWh a day here, against 1.53 kWh on average in Zambia. The shortest day lasts 11 h 13 min, ±0 min compared with Lusaka.
Solar forecast for Ntandabale, 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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A free, live card for Ntandabale: 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.