Northern Province · Sierra Leone · 8.47° N · 12.21° W
Solar position in Mile 91
Sun position, daylight and the best solar panel angle for Mile 91 — computed for 8.47° N, 12.21° W, 77 m above sea level.
The sun right now
Sun in Mile 91 today
Saturday, 24 October 2026 · local time UTC
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:26 | sun 18° below horizon |
| Nautical dawn | 05:50 | 12° below |
| Civil dawn | 06:15 | 6° below |
| Sunrise | 06:36 | 102° ESE |
| Golden hour ends | 07:05 | sun 6° up |
| Solar noon | 12:32 | 69.7° high |
| Golden hour starts | 18:00 | sun 6° up |
| Sunset | 18:29 | 258° WSW |
| Civil dusk | 18:50 | 6° below |
| Nautical dusk | 19:15 | 12° below |
| Astronomical dusk | 19:39 | 18° below |
| Day length | 11 h 52 min | |
Sun path diagram for Mile 91
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 75.0° at solar noon in Mile 91; on the December solstice only 58.1°. Sunrise swings from 66° 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 | 07:08 | 13:00 | 18:51 | 11 h 43 min | 61.7° |
| February | 07:05 | 13:02 | 18:59 | 11 h 54 min | 71.1° |
| March | 06:52 | 12:56 | 18:59 | 12 h 07 min | 81.9° |
| April | 06:36 | 12:47 | 18:58 | 12 h 21 min | 86.5° |
| May | 06:29 | 12:45 | 19:01 | 12 h 32 min | 78.2° |
| June | 06:32 | 12:50 | 19:09 | 12 h 37 min | 75.0° |
| July | 06:38 | 12:55 | 19:11 | 12 h 33 min | 78.1° |
| August | 06:41 | 12:52 | 19:02 | 12 h 21 min | 86.5° |
| September | 06:38 | 12:41 | 18:45 | 12 h 07 min | 82.1° |
| October | 06:36 | 12:33 | 18:30 | 11 h 54 min | 70.7° |
| November | 06:43 | 12:34 | 18:25 | 11 h 42 min | 61.6° |
| December | 06:57 | 12:46 | 18:35 | 11 h 38 min | 58.1° |
A year of daylight in Mile 91
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 Mile 91
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
11°collects the most energy over a year: 1430 kWh per kWp.
0°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° off-grid best | 1411 | 99% | 3.06 | 1.5× |
| 8° = latitude | 1429 | 100% | 3.00 | 1.5× |
| 11° year-round best | 1430 | 100% | 2.97 | 1.6× |
| 15° | 1427 | 100% | 2.92 | 1.6× |
| 30° | 1367 | 96% | 2.65 | 1.8× |
| 45° | 1237 | 87% | 2.25 | 2.2× |
| 60° | 1046 | 73% | 1.76 | 2.8× |
| 70° | 896 | 63% | 1.40 | 3.2× |
| 90° | 621 | 43% | 0.98 | 3.0× |
A fixed array in Mile 91 produces the most over a year at 11°. The design month for an off-grid system is August: at 0° it makes 3.06 kWh per kWp a day, 3% more than at 11°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Mile 91 at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 11° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 11° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.21 | 4.76 | 3.90 | 4.47 | 25.4 °C |
| February | 5.58 | 4.25 | 3.46 | 4.62 | 27.3 °C |
| March | 5.71 | 3.44 | 2.77 | 4.55 | 28.6 °C |
| April | 5.56 | 2.49 | 1.98 | 4.28 | 28.9 °C |
| May | 5.04 | 1.85 | 1.45 | 3.80 | 27.8 °C |
| June | 4.44 | 1.56 | 1.23 | 3.33 | 26.1 °C |
| July | 4.02 | 1.53 | 1.20 | 3.05 | 24.8 °C |
| August | 3.84 | 1.76 | 1.40 | 2.97 | 24.5 °C |
| September | 4.44 | 2.48 | 2.00 | 3.53 | 25.0 °C |
| October | 4.96 | 3.47 | 2.83 | 4.07 | 25.6 °C |
| November | 4.86 | 4.17 | 3.41 | 4.12 | 25.8 °C |
| December | 4.97 | 4.74 | 3.89 | 4.30 | 25.2 °C |
| Year | 4.88 avg | 3.03 avg | 896 kWh | 1430 kWh |
Sizing example. To run a 1 kWh-per-day load through July on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 980 Wp of panels at 70°, versus 400 Wp at 11°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Mile 91
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.
2.0 mrow pitch at 70°
2.2 mrow pitch at 11°
How Mile 91 compares in Sierra Leone
Against the other 12 places in Sierra Leone with climate data, for a fixed array at its best angle.
7thof 13 places in Sierra Leone for sunshine, shared: 4.88 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Sierra Leone: 1,430 against 1,437 kWh per kWp.
±0 mindaylight on the longest day, compared with Freetown: 12 h 37 min against 12 h 37 min.
11°best year-round tilt here; across Sierra Leone it runs from 10° in Kenema to 12° in Kabala.
Of the 13 places in Sierra Leone, Kabala gets the most sun (5.19 peak sun hours a day) and Bumpe and one other place the least (4.77); Mile 91 ranks joint 7th. In its darkest month, July, 1 kWp of off-grid panels at 70° makes 1.20 kWh a day here, against 1.21 kWh on average in Sierra Leone. The shortest day lasts 11 h 38 min, ±0 min compared with Freetown.
Solar forecast for Mile 91, 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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Places near Mile 91
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A free, live card for Mile 91: 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.