St Helier · Jersey · 49.19° N · 2.10° W
Solar position in Saint Helier
Sun position, daylight and the best solar panel angle for Saint Helier — computed for 49.19° N, 2.10° W, 11 m above sea level.
The sun right now
Sun in Saint Helier today
Saturday, 24 October 2026 · local time UTC+1
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:56 | sun 18° below horizon |
| Nautical dawn | 06:33 | 12° below |
| Civil dawn | 07:10 | 6° below |
| Sunrise | 07:43 | 107° ESE |
| Golden hour ends | 08:28 | sun 6° up |
| Solar noon | 12:52 | 29.0° high |
| Golden hour starts | 17:16 | sun 6° up |
| Sunset | 18:01 | 253° WSW |
| Civil dusk | 18:33 | 6° below |
| Nautical dusk | 19:10 | 12° below |
| Astronomical dusk | 19:47 | 18° below |
| Day length | 10 h 18 min | |
Sun path diagram for Saint Helier
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 64.3° at solar noon in Saint Helier; on the December solstice only 17.4°. Sunrise swings from 51° NE in June to 126° SE in December — a 75° 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 | 07:52 | 12:19 | 16:47 | 8 h 54 min | 21.0° |
| February | 07:06 | 12:22 | 17:38 | 10 h 32 min | 30.4° |
| March | 06:09 | 12:15 | 18:22 | 12 h 13 min | 41.2° |
| April | 06:05 | 13:07 | 20:09 | 14 h 04 min | 52.8° |
| May | 05:18 | 13:05 | 20:52 | 15 h 34 min | 61.1° |
| June | 05:03 | 13:10 | 21:17 | 16 h 14 min | 64.3° |
| July | 05:26 | 13:14 | 21:02 | 15 h 36 min | 61.2° |
| August | 06:08 | 13:11 | 20:13 | 14 h 05 min | 52.8° |
| September | 06:53 | 13:01 | 19:08 | 12 h 15 min | 41.4° |
| October | 07:38 | 12:52 | 18:06 | 10 h 28 min | 30.0° |
| November | 07:27 | 11:54 | 16:20 | 8 h 53 min | 20.9° |
| December | 08:00 | 12:06 | 16:12 | 8 h 12 min | 17.4° |
A year of daylight in Saint Helier
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 Saint Helier
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
37°collects the most energy over a year: 1188 kWh per kWp.
70°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° | 987 | 83% | 0.56 | 8.6× |
| 15° | 1115 | 94% | 0.87 | 5.8× |
| 30° | 1180 | 99% | 1.13 | 4.3× |
| 37° year-round best | 1188 | 100% | 1.22 | 3.9× |
| 45° | 1178 | 99% | 1.31 | 3.5× |
| 49° = latitude | 1167 | 98% | 1.35 | 3.3× |
| 60° | 1111 | 94% | 1.42 | 2.9× |
| 70° off-grid best | 1032 | 87% | 1.44 | 2.6× |
| 90° | 805 | 68% | 1.36 | 2.1× |
A fixed array in Saint Helier produces the most over a year at 37°. The design month for an off-grid system is December: at 70° it makes 1.44 kWh per kWp a day, 18% more than at 37°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Saint Helier at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 37° | Mean temp. |
|---|---|---|---|---|---|
| January | 0.92 | 1.84 | 1.59 | 1.39 | 7.7 °C |
| February | 1.68 | 2.67 | 2.33 | 2.21 | 7.3 °C |
| March | 2.90 | 3.54 | 3.09 | 3.25 | 8.2 °C |
| April | 4.57 | 4.32 | 3.75 | 4.45 | 10.1 °C |
| May | 5.47 | 4.15 | 3.56 | 4.71 | 12.4 °C |
| June | 5.87 | 4.01 | 3.39 | 4.74 | 15.0 °C |
| July | 5.73 | 4.08 | 3.43 | 4.70 | 16.9 °C |
| August | 4.79 | 4.10 | 3.45 | 4.30 | 17.5 °C |
| September | 3.70 | 4.15 | 3.51 | 3.86 | 16.4 °C |
| October | 2.09 | 2.99 | 2.55 | 2.52 | 14.1 °C |
| November | 1.13 | 2.12 | 1.82 | 1.63 | 11.1 °C |
| December | 0.76 | 1.67 | 1.44 | 1.22 | 8.7 °C |
| Year | 3.31 avg | 3.31 avg | 1032 kWh | 1188 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 820 Wp of panels at 70°, versus 960 Wp at 37°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Saint Helier
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.
8.1 mrow pitch at 70°
6.3 mrow pitch at 37°
Solar forecast for Saint Helier, 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 Saint Helier
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A free, live card for Saint Helier: 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.