Solarposition.org

Saint-Louis · Senegal · 16.46° N · 15.70° W

Solar position in Richard-Toll

Sun position, daylight and the best solar panel angle for Richard-Toll — computed for 16.46° N, 15.70° W, 7 m above sea level.

Sunrise today06:57102° ESE
Sunset today18:36258° WSW
Best panel angle16°year-round, facing south
Off-grid angle19°best for the darkest month

The sun right now

Azimuth180.0°
Elevation61.7°
At solar noon, 12:46Open on the sun map

Sun in Richard-Toll today

Saturday, 24 October 2026 · local time UTC

EventTimeDirection / height
Astronomical dawn05:44sun 18° below horizon
Nautical dawn06:1012° below
Civil dawn06:356° below
Sunrise06:57102° ESE
Golden hour ends07:26sun 6° up
Solar noon12:4661.7° high
Golden hour starts18:06sun 6° up
Sunset18:36258° WSW
Civil dusk18:586° below
Nautical dusk19:2312° below
Astronomical dusk19:4818° below
Day length11 h 39 min

Sun path diagram for Richard-Toll

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice78910111213141516171819EquinoxDecember solstice89101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 83.0° at solar noon in Richard-Toll; on the December solstice only 50.1°. Sunrise swings from 65° ENE in June to 114° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:3413:1418:5311 h 19 min53.7°
February07:2513:1619:0711 h 42 min63.1°
March07:0613:1019:1312 h 08 min73.9°
April06:4313:0119:1912 h 36 min85.5°
May06:3012:5919:2812 h 58 min86.2°
June06:3113:0419:3713 h 07 min83.0°
July06:4013:0919:3812 h 58 min86.1°
August06:4713:0519:2312 h 36 min85.5°
September06:5112:5518:5912 h 08 min74.1°
October06:5612:4718:3711 h 41 min62.7°
November07:0912:4818:2711 h 18 min53.6°
December07:2613:0018:3511 h 09 min50.1°

A year of daylight in Richard-Toll

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Richard-Toll

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

16°collects the most energy over a year: 1813 kWh per kWp.

19°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 16°Best worst-month 19°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°175897%3.861.5×
15°1813100%4.521.2×
16° year-round best = latitude1813100%4.561.2×
19° off-grid best1811100%4.661.2×
30°176897%4.921.3×
45°162490%5.031.5×
60°139477%4.851.9×
70°120266%4.572.4×
90°81745%3.653.1×

A fixed array in Richard-Toll produces the most over a year at 16°. The design month for an off-grid system is December: at 19° it makes 4.66 kWh per kWp a day, 2% more than at 16°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Richard-Toll at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 16° (year-round best).

0123456January: 4.60 (70°)4.6JanFebruary: 4.27 (70°)4.3FebMarch: 3.82 (70°)3.8MarApril: 2.86 (70°)2.9AprMay: 2.14 (70°)2.1MayJune: 1.89 (70°)1.9JunJuly: 1.92 (70°)1.9JulAugust: 2.28 (70°)2.3AugSeptember: 2.98 (70°)3.0SepOctober: 3.83 (70°)3.8OctNovember: 4.41 (70°)4.4NovDecember: 4.57 (70°)4.6Dec16°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 16°Mean temp.
January5.135.544.604.7722.1 °C
February5.795.174.275.1123.5 °C
March6.724.683.825.5726.0 °C
April7.133.552.865.5327.8 °C
May7.112.702.145.2529.7 °C
June6.752.411.894.8930.6 °C
July6.462.431.924.7330.0 °C
August6.282.872.284.7629.6 °C
September6.023.722.984.7929.8 °C
October5.844.763.834.9229.6 °C
November5.245.414.414.7426.7 °C
December4.855.544.574.5623.6 °C
Year6.11 avg4.06 avg1202 kWh1813 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 620 Wp of panels at 70°, versus 260 Wp at 16°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Richard-Toll

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°

2.4 mrow pitch at 16°

Row spacing calculator

How Richard-Toll compares in Senegal

Against the other 64 places in Senegal with climate data, for a fixed array at its best angle.

4thof 65 places in Senegal for sunshine: 6.11 peak sun hours a day on flat ground.

+3%solar energy a year compared with the average place in Senegal: 1,813 against 1,758 kWh per kWp.

+7 mindaylight on the longest day, compared with Dakar: 13 h 07 min against 13 h 00 min.

16°best year-round tilt here; across Senegal it runs from 14° in Kaolack to 16° in Richard-Toll.

Of the 65 places in Senegal, Ndioum gets the most sun (6.17 peak sun hours a day) and Ziguinchor the least (5.63); Richard-Toll ranks 4th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.89 kWh a day here, against 1.69 kWh on average in Senegal. The shortest day lasts 11 h 09 min, −7 min compared with Dakar.

The sunniest places in Senegal

Solar forecast for Richard-Toll, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Richard-Toll

What is the best solar panel angle in Richard-Toll?
For a fixed array facing south, the best year-round tilt in Richard-Toll is 16°, worth about 1813 kWh per kWp a year. An off-grid system that has to get through December does better at about 19°.
What time is sunrise and sunset in Richard-Toll today?
On 24 October 2026 the sun rises at 06:57 and sets at 18:36 local time (UTC), giving 11 h 39 min of daylight. Solar noon is at 12:46.
How many peak sun hours does Richard-Toll get?
On a flat surface 6.1 hours a day averaged over the year, from 4.9 in December to 7.1 in April. Panels tilted at 70° receive 2.4 sun hours a day in June.
How high does the sun get in Richard-Toll?
At solar noon the sun stands 83.0° above the horizon on the June solstice and 50.1° on the December solstice.
Is Richard-Toll a good place for solar panels?
With 6.1 peak sun hours a day on flat ground, Richard-Toll ranks 4th of 65 places in Senegal for sunshine. A 1 kWp array at the best angle (16°) makes about 1,813 kWh a year here, 3% more than the average place in Senegal.

Places near Richard-Toll

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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.