Ontario · Canada · 42.90° N · 79.23° W
Solar position in Port Colborne
Sun position, daylight and the best solar panel angle for Port Colborne — computed for 42.90° N, 79.23° W, 188 m above sea level.
The sun right now
Sun in Port Colborne today
Saturday, 24 October 2026 · local time UTC−4
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:06 | sun 18° below horizon |
| Nautical dawn | 06:39 | 12° below |
| Civil dawn | 07:12 | 6° below |
| Sunrise | 07:41 | 105° ESE |
| Golden hour ends | 08:20 | sun 6° up |
| Solar noon | 13:00 | 35.2° high |
| Golden hour starts | 17:40 | sun 6° up |
| Sunset | 18:20 | 254° WSW |
| Civil dusk | 18:49 | 6° below |
| Nautical dusk | 19:22 | 12° below |
| Astronomical dusk | 19:55 | 18° below |
| Day length | 10 h 39 min | |
Sun path diagram for Port Colborne
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 70.5° at solar noon in Port Colborne; on the December solstice only 23.7°. Sunrise swings from 56° NE in June to 122° ESE in December — a 66° 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 | 07:41 | 12:28 | 17:15 | 9 h 34 min | 27.3° |
| February | 07:05 | 12:30 | 17:56 | 10 h 51 min | 36.8° |
| March | 07:18 | 13:24 | 19:30 | 12 h 12 min | 47.6° |
| April | 06:25 | 13:15 | 20:06 | 13 h 41 min | 59.1° |
| May | 05:48 | 13:13 | 20:39 | 14 h 51 min | 67.4° |
| June | 05:38 | 13:18 | 20:59 | 15 h 21 min | 70.5° |
| July | 05:57 | 13:23 | 20:49 | 14 h 52 min | 67.5° |
| August | 06:29 | 13:19 | 20:09 | 13 h 40 min | 59.0° |
| September | 07:03 | 13:09 | 19:15 | 12 h 13 min | 47.6° |
| October | 07:37 | 13:01 | 18:24 | 10 h 47 min | 36.2° |
| November | 07:16 | 12:02 | 16:48 | 9 h 32 min | 27.1° |
| December | 07:44 | 12:15 | 16:45 | 9 h 01 min | 23.7° |
A year of daylight in Port Colborne
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 Port Colborne
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: 1264 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° | 1093 | 86% | 0.89 | 5.6× |
| 15° | 1211 | 96% | 1.20 | 4.1× |
| 30° | 1262 | 100% | 1.46 | 3.3× |
| 34° year-round best | 1264 | 100% | 1.52 | 3.1× |
| 43° = latitude | 1251 | 99% | 1.62 | 2.7× |
| 45° | 1245 | 98% | 1.64 | 2.6× |
| 60° | 1160 | 92% | 1.73 | 2.2× |
| 66° off-grid best | 1109 | 88% | 1.74 | 2.1× |
| 70° | 1070 | 85% | 1.73 | 2.1× |
| 90° | 823 | 65% | 1.61 | 1.8× |
A fixed array in Port Colborne produces the most over a year at 34°. The design month for an off-grid system is December: at 66° it makes 1.74 kWh per kWp a day, 14% more than at 34°, and costs 12% of the yearly total. Why steep panels win winter.
Off-grid solar in Port Colborne 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 | 1.40 | 2.43 | 2.21 | 1.91 | -4.0 °C |
| February snow | 2.15 | 3.15 | 2.88 | 2.66 | -3.9 °C |
| March snow | 3.29 | 3.80 | 3.42 | 3.61 | 0.2 °C |
| April | 4.47 | 3.78 | 3.32 | 4.20 | 6.0 °C |
| May | 5.46 | 3.73 | 3.19 | 4.55 | 12.4 °C |
| June | 6.02 | 3.68 | 3.07 | 4.67 | 18.2 °C |
| July | 5.99 | 3.82 | 3.15 | 4.68 | 21.8 °C |
| August | 5.31 | 4.09 | 3.39 | 4.52 | 21.4 °C |
| September | 4.17 | 4.26 | 3.59 | 4.13 | 17.9 °C |
| October | 2.54 | 3.31 | 2.86 | 2.91 | 10.9 °C |
| November | 1.62 | 2.67 | 2.36 | 2.17 | 4.7 °C |
| December snow | 1.10 | 1.94 | 1.73 | 1.52 | -0.6 °C |
| Year | 3.63 avg | 3.39 avg | 1070 kWh | 1264 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 680 Wp of panels at 70°, versus 780 Wp at 34°. The steep array is 12% smaller for the same winter. Size your own system.
Row spacing in Port Colborne
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.
5.7 mrow pitch at 70°
4.6 mrow pitch at 34°
How Port Colborne compares in Canada
Against the other 295 places in Canada with climate data, for a fixed array at its best angle.
64thof 296 places in Canada for sunshine, shared: 3.63 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Canada: 1,264 against 1,292 kWh per kWp.
−6 mindaylight on the longest day, compared with Toronto: 15 h 21 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); Port Colborne ranks joint 64th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.73 kWh a day here, against 1.88 kWh on average in Canada. The shortest day lasts 9 h 01 min, +6 min compared with Toronto.
Solar forecast for Port Colborne, 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 Port Colborne
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Places near Port Colborne
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A free, live card for Port Colborne: 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.