Normandy · France · 49.12° N · 1.09° W
Solar position in Saint-Lô
Sun position, daylight and the best solar panel angle for Saint-Lô — computed for 49.12° N, 1.09° W, 41 m above sea level.
The sun right now
Sun in Saint-Lô today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:52 | sun 18° below horizon |
| Nautical dawn | 07:29 | 12° below |
| Civil dawn | 08:06 | 6° below |
| Sunrise | 08:38 | 107° ESE |
| Golden hour ends | 09:23 | sun 6° up |
| Solar noon | 13:48 | 29.1° high |
| Golden hour starts | 18:12 | sun 6° up |
| Sunset | 18:57 | 253° WSW |
| Civil dusk | 19:29 | 6° below |
| Nautical dusk | 20:06 | 12° below |
| Astronomical dusk | 20:43 | 18° below |
| Day length | 10 h 18 min | |
Sun path diagram for Saint-Lô
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-Lô; on the December solstice only 17.5°. 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 | 08:48 | 13:15 | 17:43 | 8 h 55 min | 21.1° |
| February | 08:02 | 13:18 | 18:34 | 10 h 32 min | 30.5° |
| March | 07:05 | 13:11 | 19:18 | 12 h 13 min | 41.3° |
| April | 07:01 | 14:03 | 21:05 | 14 h 04 min | 52.9° |
| May | 06:14 | 14:01 | 21:48 | 15 h 34 min | 61.1° |
| June | 05:59 | 14:06 | 22:12 | 16 h 13 min | 64.3° |
| July | 06:22 | 14:10 | 21:58 | 15 h 36 min | 61.3° |
| August | 07:04 | 14:07 | 21:09 | 14 h 04 min | 52.9° |
| September | 07:49 | 13:57 | 20:04 | 12 h 15 min | 41.5° |
| October | 08:34 | 13:48 | 19:02 | 10 h 29 min | 30.1° |
| November | 08:23 | 12:50 | 17:16 | 8 h 53 min | 21.0° |
| December | 08:56 | 13:02 | 17:08 | 8 h 12 min | 17.5° |
A year of daylight in Saint-Lô
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-Lô
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
38°collects the most energy over a year: 1187 kWh per kWp.
71°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° | 979 | 82% | 0.58 | 8.2× |
| 15° | 1109 | 93% | 0.93 | 5.3× |
| 30° | 1178 | 99% | 1.22 | 3.9× |
| 38° year-round best | 1187 | 100% | 1.34 | 3.4× |
| 45° | 1180 | 99% | 1.43 | 3.1× |
| 49° = latitude | 1169 | 98% | 1.48 | 2.9× |
| 60° | 1115 | 94% | 1.56 | 2.6× |
| 70° | 1038 | 87% | 1.58 | 2.3× |
| 71° off-grid best | 1029 | 87% | 1.58 | 2.3× |
| 90° | 813 | 68% | 1.50 | 1.9× |
A fixed array in Saint-Lô produces the most over a year at 38°. The design month for an off-grid system is December: at 71° it makes 1.58 kWh per kWp a day, 18% more than at 38°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Saint-Lô at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January | 0.95 | 1.96 | 1.71 | 1.50 | 6.5 °C |
| February | 1.71 | 2.75 | 2.42 | 2.30 | 6.2 °C |
| March | 2.92 | 3.58 | 3.14 | 3.31 | 7.7 °C |
| April | 4.52 | 4.27 | 3.71 | 4.40 | 10.0 °C |
| May | 5.33 | 4.05 | 3.46 | 4.56 | 12.6 °C |
| June | 5.78 | 3.95 | 3.33 | 4.63 | 15.6 °C |
| July | 5.67 | 4.04 | 3.39 | 4.62 | 17.5 °C |
| August | 4.74 | 4.05 | 3.40 | 4.23 | 17.9 °C |
| September | 3.68 | 4.13 | 3.50 | 3.85 | 16.2 °C |
| October | 2.08 | 2.99 | 2.56 | 2.53 | 13.5 °C |
| November | 1.15 | 2.23 | 1.92 | 1.72 | 10.1 °C |
| December | 0.78 | 1.82 | 1.58 | 1.34 | 7.3 °C |
| Year | 3.29 avg | 3.32 avg | 1038 kWh | 1187 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 750 Wp of panels at 70°, versus 880 Wp at 38°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Saint-Lô
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°
6.4 mrow pitch at 38°
How Saint-Lô compares in France
Against the other 656 places in France with climate data, for a fixed array at its best angle.
341stof 657 places in France for sunshine, shared: 3.29 peak sun hours a day on flat ground.
−6%solar energy a year compared with the average place in France: 1,187 against 1,261 kWh per kWp.
+3 mindaylight on the longest day, compared with Paris: 16 h 13 min against 16 h 11 min.
38°best year-round tilt here; across France it runs from 33° in Ajaccio to 39° in Lille.
Of the 657 places in France, Marseille 12 and 5 other places get the most sun (4.46 peak sun hours a day) and Maubeuge and one other place the least (3.10); Saint-Lô ranks joint 341st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.58 kWh a day here, against 1.86 kWh on average in France. The shortest day lasts 8 h 12 min, −2 min compared with Paris.
Solar forecast for Saint-Lô, 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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A free, live card for Saint-Lô: 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.