Otjozondjupa Region · Namibia · 20.46° S · 16.65° E
Solar position in Otjiwarongo
Sun position, daylight and the best solar panel angle for Otjiwarongo — computed for 20.46° S, 16.65° E, 1475 m above sea level.
The sun right now
Sun in Otjiwarongo today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:59 | sun 18° below horizon |
| Nautical dawn | 05:26 | 12° below |
| Civil dawn | 05:53 | 6° below |
| Sunrise | 06:16 | 103° ESE |
| Golden hour ends | 06:45 | sun 6° up |
| Solar noon | 12:37 | 81.4° high |
| Golden hour starts | 18:29 | sun 6° up |
| Sunset | 18:59 | 257° WSW |
| Civil dusk | 19:22 | 6° below |
| Nautical dusk | 19:48 | 12° below |
| Astronomical dusk | 20:15 | 18° below |
| Day length | 12 h 43 min | |
Sun path diagram for Otjiwarongo
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 46.1° at solar noon in Otjiwarongo; on the December solstice only 87.0°. Sunrise swings from 65° ENE in June to 115° ESE in December — a 50° 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 | 06:29 | 13:04 | 19:39 | 13 h 10 min | 89.4° |
| February | 06:47 | 13:06 | 19:26 | 12 h 39 min | 80.0° |
| March | 06:57 | 13:00 | 19:03 | 12 h 06 min | 69.2° |
| April | 07:06 | 12:51 | 18:37 | 11 h 31 min | 57.6° |
| May | 07:17 | 12:49 | 18:22 | 11 h 04 min | 49.3° |
| June | 07:28 | 12:55 | 18:21 | 10 h 53 min | 46.1° |
| July | 07:28 | 12:59 | 18:31 | 11 h 04 min | 49.1° |
| August | 07:11 | 12:56 | 18:42 | 11 h 31 min | 57.5° |
| September | 06:44 | 12:46 | 18:49 | 12 h 05 min | 68.9° |
| October | 06:18 | 12:38 | 18:58 | 12 h 40 min | 80.3° |
| November | 06:04 | 12:39 | 19:14 | 13 h 10 min | 89.5° |
| December | 06:10 | 12:51 | 19:32 | 13 h 23 min | 87.0° |
A year of daylight in Otjiwarongo
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 Otjiwarongo
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
23°collects the most energy over a year: 1968 kWh per kWp.
18°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° | 1829 | 93% | 5.67 | 1.5× |
| 15° | 1952 | 99% | 5.33 | 1.1× |
| 18° off-grid best | 1962 | 100% | 5.23 | 1.1× |
| 20° = latitude | 1966 | 100% | 5.15 | 1.1× |
| 23° year-round best | 1968 | 100% | 5.03 | 1.2× |
| 30° | 1955 | 99% | 4.70 | 1.3× |
| 45° | 1841 | 94% | 3.81 | 1.7× |
| 60° | 1619 | 82% | 2.75 | 2.4× |
| 70° | 1421 | 72% | 2.02 | 3.3× |
| 90° | 980 | 50% | 1.08 | 5.1× |
A fixed array in Otjiwarongo produces the most over a year at 23°. The design month for an off-grid system is January: at 18° it makes 5.23 kWh per kWp a day, 4% more than at 23°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Otjiwarongo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 23° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 23° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.11 | 2.51 | 2.02 | 5.03 | 25.5 °C |
| February | 6.61 | 3.22 | 2.62 | 5.04 | 24.5 °C |
| March | 6.07 | 4.10 | 3.37 | 5.05 | 23.7 °C |
| April | 5.63 | 5.34 | 4.44 | 5.27 | 21.7 °C |
| May | 5.27 | 6.65 | 5.59 | 5.58 | 18.6 °C |
| June | 4.89 | 7.03 | 5.97 | 5.54 | 15.5 °C |
| July | 5.12 | 6.99 | 5.95 | 5.67 | 15.3 °C |
| August | 5.76 | 6.31 | 5.31 | 5.77 | 18.4 °C |
| September | 6.59 | 5.18 | 4.29 | 5.81 | 22.5 °C |
| October | 7.09 | 3.76 | 3.07 | 5.55 | 25.5 °C |
| November | 7.39 | 2.70 | 2.18 | 5.29 | 26.0 °C |
| December | 7.41 | 2.28 | 1.82 | 5.09 | 26.1 °C |
| Year | 6.24 avg | 4.68 avg | 1421 kWh | 1968 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 650 Wp of panels at 70°, versus 230 Wp at 23°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Otjiwarongo
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.
2.7 mrow pitch at 70°
2.7 mrow pitch at 23°
How Otjiwarongo compares in Namibia
Against the other 17 places in Namibia with climate data, for a fixed array at its best angle.
11thof 18 places in Namibia for sunshine: 6.24 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Namibia: 1,968 against 1,951 kWh per kWp.
−9 mindaylight on the longest day, compared with Windhoek: 13 h 23 min against 13 h 31 min.
23°best year-round tilt here; across Namibia it runs from 20° in Oshakati to 27° in Keetmanshoop.
Of the 18 places in Namibia, Keetmanshoop and one other place get the most sun (6.48 peak sun hours a day) and Walvis Bay the least (5.81); Otjiwarongo ranks 11th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.82 kWh a day here, against 1.92 kWh on average in Namibia. The shortest day lasts 10 h 53 min, +8 min compared with Windhoek.
Solar forecast for Otjiwarongo, 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 Otjiwarongo: 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.