Ontario · Canada · 42.24° N · 83.06° W
Solar position in LaSalle
Sun position, daylight and the best solar panel angle for LaSalle — computed for 42.24° N, 83.06° W, 178 m above sea level.
The sun right now
Sun in LaSalle today
Saturday, 24 October 2026 · local time UTC−4
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:21 | sun 18° below horizon |
| Nautical dawn | 06:54 | 12° below |
| Civil dawn | 07:27 | 6° below |
| Sunrise | 07:55 | 105° ESE |
| Golden hour ends | 08:34 | sun 6° up |
| Solar noon | 13:16 | 35.8° high |
| Golden hour starts | 17:57 | sun 6° up |
| Sunset | 18:36 | 254° WSW |
| Civil dusk | 19:05 | 6° below |
| Nautical dusk | 19:37 | 12° below |
| Astronomical dusk | 20:10 | 18° below |
| Day length | 10 h 41 min | |
Sun path diagram for LaSalle
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 71.2° at solar noon in LaSalle; on the December solstice only 24.4°. Sunrise swings from 57° ENE in June to 122° ESE in December — a 65° 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 | 07:54 | 12:43 | 17:32 | 9 h 38 min | 28.0° |
| February | 07:19 | 12:46 | 18:12 | 10 h 53 min | 37.4° |
| March | 07:33 | 13:39 | 19:45 | 12 h 12 min | 48.2° |
| April | 06:41 | 13:31 | 20:20 | 13 h 39 min | 59.8° |
| May | 06:05 | 13:28 | 20:52 | 14 h 47 min | 68.1° |
| June | 05:55 | 13:34 | 21:12 | 15 h 16 min | 71.2° |
| July | 06:14 | 13:38 | 21:02 | 14 h 48 min | 68.1° |
| August | 06:46 | 13:35 | 20:23 | 13 h 38 min | 59.7° |
| September | 07:18 | 13:25 | 19:31 | 12 h 12 min | 48.3° |
| October | 07:52 | 13:16 | 18:40 | 10 h 49 min | 36.9° |
| November | 07:30 | 12:17 | 17:05 | 9 h 36 min | 27.8° |
| December | 07:57 | 12:30 | 17:03 | 9 h 05 min | 24.4° |
A year of daylight in LaSalle
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 LaSalle
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
34°collects the most energy over a year: 1320 kWh per kWp.
66°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1135 | 86% | 1.02 | 5.0× |
| 15° | 1261 | 96% | 1.39 | 3.6× |
| 30° | 1317 | 100% | 1.70 | 2.9× |
| 34° year-round best | 1320 | 100% | 1.76 | 2.7× |
| 42° = latitude | 1309 | 99% | 1.88 | 2.4× |
| 45° | 1300 | 99% | 1.91 | 2.3× |
| 60° | 1212 | 92% | 2.02 | 2.0× |
| 66° off-grid best | 1158 | 88% | 2.03 | 1.9× |
| 70° | 1116 | 85% | 2.02 | 1.8× |
| 90° | 855 | 65% | 1.88 | 1.6× |
A fixed array in LaSalle produces the most over a year at 34°. The design month for an off-grid system is December: at 66° it makes 2.03 kWh per kWp a day, 15% more than at 34°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in LaSalle at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 34° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 34° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.51 | 2.66 | 2.43 | 2.10 | -4.1 °C |
| February snow | 2.35 | 3.54 | 3.24 | 2.99 | -3.5 °C |
| March | 3.48 | 3.78 | 3.39 | 3.75 | 1.5 °C |
| April | 4.66 | 3.90 | 3.41 | 4.33 | 7.7 °C |
| May | 5.46 | 3.69 | 3.14 | 4.49 | 14.1 °C |
| June | 6.17 | 3.70 | 3.07 | 4.74 | 19.7 °C |
| July | 6.19 | 3.87 | 3.19 | 4.79 | 22.7 °C |
| August | 5.35 | 4.08 | 3.37 | 4.53 | 22.1 °C |
| September | 4.28 | 4.34 | 3.65 | 4.21 | 18.4 °C |
| October | 2.80 | 3.69 | 3.19 | 3.24 | 11.4 °C |
| November | 1.80 | 3.00 | 2.65 | 2.44 | 4.8 °C |
| December snow | 1.25 | 2.25 | 2.02 | 1.76 | -0.8 °C |
| Year | 3.78 avg | 3.54 avg | 1116 kWh | 1320 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 580 Wp of panels at 70°, versus 670 Wp at 34°. The steep array is 13% smaller for the same winter. Size your own system.
Row spacing in LaSalle
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.
5.5 mrow pitch at 70°
4.5 mrow pitch at 34°
How LaSalle compares in Canada
Against the other 295 places in Canada with climate data, for a fixed array at its best angle.
4thof 296 places in Canada for sunshine, shared: 3.78 peak sun hours a day on flat ground.
+2%solar energy a year compared with the average place in Canada: 1,320 against 1,292 kWh per kWp.
−11 mindaylight on the longest day, compared with Toronto: 15 h 16 min against 15 h 27 min.
34°best year-round tilt here; across Canada it runs from 34° in Hamilton to 52° in Yellowknife.
Of the 296 places in Canada, Medicine Hat and one other place get the most sun (3.84 peak sun hours a day) and Terrace the least (2.57); LaSalle ranks joint 4th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.02 kWh a day here, against 1.88 kWh on average in Canada. The shortest day lasts 9 h 05 min, +10 min compared with Toronto.
Solar forecast for LaSalle, 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 LaSalle
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A free, live card for LaSalle: 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.