Kwilu · Democratic Republic of the Congo · 4.97° S · 19.59° E
Solar position in Idiofa
Sun position, daylight and the best solar panel angle for Idiofa — computed for 4.97° S, 19.59° E, 681 m above sea level.
The sun right now
Sun in Idiofa today
Saturday, 24 October 2026 · local time UTC+1
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:07 | sun 18° below horizon |
| Nautical dawn | 04:32 | 12° below |
| Civil dawn | 04:57 | 6° below |
| Sunrise | 05:18 | 102° ESE |
| Golden hour ends | 05:46 | sun 6° up |
| Solar noon | 11:25 | 83.1° high |
| Golden hour starts | 17:05 | sun 6° up |
| Sunset | 17:33 | 258° WSW |
| Civil dusk | 17:54 | 6° below |
| Nautical dusk | 18:19 | 12° below |
| Astronomical dusk | 18:44 | 18° below |
| Day length | 12 h 15 min | |
Sun path diagram for Idiofa
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 61.6° at solar noon in Idiofa; on the December solstice only 71.5°. Sunrise swings from 67° ENE in June to 114° ESE in December — a 47° 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 | 05:42 | 11:52 | 18:03 | 12 h 22 min | 75.1° |
| February | 05:48 | 11:55 | 18:02 | 12 h 14 min | 84.5° |
| March | 05:45 | 11:48 | 17:51 | 12 h 06 min | 84.7° |
| April | 05:41 | 11:40 | 17:39 | 11 h 58 min | 73.1° |
| May | 05:41 | 11:38 | 17:34 | 11 h 52 min | 64.8° |
| June | 05:48 | 11:43 | 17:38 | 11 h 50 min | 61.6° |
| July | 05:51 | 11:48 | 17:44 | 11 h 52 min | 64.6° |
| August | 05:45 | 11:44 | 17:43 | 11 h 58 min | 73.0° |
| September | 05:31 | 11:34 | 17:37 | 12 h 06 min | 84.4° |
| October | 05:19 | 11:26 | 17:33 | 12 h 14 min | 84.2° |
| November | 05:16 | 11:27 | 17:38 | 12 h 22 min | 75.0° |
| December | 05:27 | 11:39 | 17:52 | 12 h 25 min | 71.5° |
A year of daylight in Idiofa
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 Idiofa
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
6°collects the most energy over a year: 1384 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 | August kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1379 | 100% | 3.39 | 1.2× |
| 5° = latitude | 1384 | 100% | 3.45 | 1.2× |
| 6° year-round best | 1384 | 100% | 3.47 | 1.2× |
| 7° off-grid best | 1384 | 100% | 3.48 | 1.2× |
| 15° | 1371 | 99% | 3.53 | 1.2× |
| 30° | 1291 | 93% | 3.48 | 1.5× |
| 45° | 1145 | 83% | 3.26 | 1.9× |
| 60° | 945 | 68% | 2.88 | 2.6× |
| 70° | 799 | 58% | 2.54 | 2.9× |
| 90° | 552 | 40% | 1.72 | 2.4× |
A fixed array in Idiofa produces the most over a year at 6°. The design month for an off-grid system is August: at 7° it makes 3.48 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Idiofa at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 6° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 6° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.73 | 1.54 | 1.21 | 3.66 | 24.9 °C |
| February | 4.89 | 1.92 | 1.53 | 3.83 | 25.5 °C |
| March | 5.03 | 2.58 | 2.09 | 4.01 | 25.2 °C |
| April | 4.91 | 3.32 | 2.71 | 3.99 | 24.9 °C |
| May | 4.71 | 3.86 | 3.16 | 3.88 | 25.2 °C |
| June | 4.70 | 4.22 | 3.45 | 3.90 | 25.7 °C |
| July | 4.54 | 3.87 | 3.15 | 3.72 | 26.6 °C |
| August | 4.30 | 3.14 | 2.54 | 3.47 | 27.2 °C |
| September | 4.73 | 2.76 | 2.23 | 3.79 | 26.1 °C |
| October | 5.00 | 2.14 | 1.71 | 3.95 | 25.0 °C |
| November | 4.89 | 1.60 | 1.27 | 3.81 | 24.4 °C |
| December | 4.54 | 1.50 | 1.19 | 3.51 | 24.3 °C |
| Year | 4.75 avg | 2.71 avg | 799 kWh | 1384 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 990 Wp of panels at 70°, versus 340 Wp at 6°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Idiofa
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.
1.8 mrow pitch at 70°
2.1 mrow pitch at 6°
How Idiofa compares in the Democratic Republic of the Congo
Against the other 113 places in the Democratic Republic of the Congo with climate data, for a fixed array at its best angle.
84thof 114 places in the Democratic Republic of the Congo for sunshine, shared: 4.75 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in the Democratic Republic of the Congo: 1,384 against 1,465 kWh per kWp.
+2 mindaylight on the longest day, compared with Kinshasa: 12 h 25 min against 12 h 23 min.
6°best year-round tilt here; across the Democratic Republic of the Congo it runs from 0° in Boende to 17° in Lubumbashi.
Of the 114 places in the Democratic Republic of the Congo, Mokambo gets the most sun (5.73 peak sun hours a day) and Tshela the least (4.07); Idiofa ranks joint 84th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.19 kWh a day here, against 1.20 kWh on average in the Democratic Republic of the Congo. The shortest day lasts 11 h 50 min, −2 min compared with Kinshasa.
Solar forecast for Idiofa, 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 Idiofa
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A free, live card for Idiofa: 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.