Switzerland · 47.17° N · 8.52° E
Solar position in Zug
Sun position, daylight and the best solar panel angle for Zug — computed for 47.17° N, 8.52° E, 425 m above sea level.
The sun right now
Sun in Zug today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:14 | sun 18° below horizon |
| Nautical dawn | 06:49 | 12° below |
| Civil dawn | 07:25 | 6° below |
| Sunrise | 07:56 | 107° ESE |
| Golden hour ends | 08:40 | sun 6° up |
| Solar noon | 13:09 | 31.0° high |
| Golden hour starts | 17:39 | sun 6° up |
| Sunset | 18:22 | 253° WSW |
| Civil dusk | 18:53 | 6° below |
| Nautical dusk | 19:29 | 12° below |
| Astronomical dusk | 20:04 | 18° below |
| Day length | 10 h 26 min | |
Sun path diagram for Zug
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 66.3° at solar noon in Zug; on the December solstice only 19.4°. Sunrise swings from 53° NE in June to 125° SE in December — a 72° 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 | 08:03 | 12:37 | 17:11 | 9 h 08 min | 23.0° |
| February | 07:20 | 12:39 | 17:58 | 10 h 38 min | 32.4° |
| March | 06:27 | 12:33 | 18:39 | 12 h 13 min | 43.2° |
| April | 06:27 | 13:24 | 20:22 | 13 h 56 min | 54.8° |
| May | 05:43 | 13:22 | 21:02 | 15 h 19 min | 63.1° |
| June | 05:30 | 13:27 | 21:25 | 15 h 55 min | 66.3° |
| July | 05:51 | 13:32 | 21:12 | 15 h 21 min | 63.2° |
| August | 06:30 | 13:28 | 20:26 | 13 h 56 min | 54.9° |
| September | 07:11 | 13:18 | 19:25 | 12 h 15 min | 43.4° |
| October | 07:52 | 13:10 | 18:27 | 10 h 35 min | 32.1° |
| November | 07:38 | 12:11 | 16:44 | 9 h 07 min | 22.9° |
| December | 08:09 | 12:23 | 16:38 | 8 h 29 min | 19.4° |
A year of daylight in Zug
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 Zug
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
39°collects the most energy over a year: 1267 kWh per kWp.
72°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° | 1035 | 82% | 0.81 | 5.8× |
| 15° | 1178 | 93% | 1.27 | 3.8× |
| 30° | 1255 | 99% | 1.65 | 2.9× |
| 39° year-round best | 1267 | 100% | 1.84 | 2.5× |
| 45° | 1261 | 100% | 1.94 | 2.3× |
| 47° = latitude | 1257 | 99% | 1.97 | 2.2× |
| 60° | 1197 | 95% | 2.11 | 1.8× |
| 70° | 1118 | 88% | 2.15 | 1.7× |
| 72° off-grid best | 1099 | 87% | 2.15 | 1.7× |
| 90° | 885 | 70% | 2.06 | 1.5× |
A fixed array in Zug produces the most over a year at 39°. The design month for an off-grid system is December: at 72° it makes 2.15 kWh per kWp a day, 17% more than at 39°, and costs 13% of the yearly total. Why steep panels win winter.
Off-grid solar in Zug at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 39° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 39° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.29 | 2.79 | 2.54 | 2.17 | -2.1 °C |
| February snow | 2.14 | 3.45 | 3.13 | 2.96 | -1.4 °C |
| March | 3.36 | 4.06 | 3.63 | 3.87 | 2.8 °C |
| April | 4.41 | 4.01 | 3.51 | 4.23 | 7.4 °C |
| May | 5.02 | 3.69 | 3.17 | 4.21 | 11.6 °C |
| June | 5.76 | 3.80 | 3.21 | 4.51 | 15.9 °C |
| July | 5.71 | 3.92 | 3.29 | 4.55 | 17.5 °C |
| August | 4.90 | 4.05 | 3.42 | 4.32 | 17.0 °C |
| September | 3.74 | 4.08 | 3.50 | 3.91 | 12.9 °C |
| October | 2.40 | 3.44 | 3.00 | 3.00 | 8.7 °C |
| November | 1.37 | 2.54 | 2.26 | 2.07 | 3.1 °C |
| December snow | 1.04 | 2.38 | 2.15 | 1.84 | -1.1 °C |
| Year | 3.43 avg | 3.52 avg | 1118 kWh | 1267 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 550 Wp of panels at 70°, versus 640 Wp at 39°. The steep array is 15% smaller for the same winter. Size your own system.
Row spacing in Zug
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.
7.1 mrow pitch at 70°
5.9 mrow pitch at 39°
How Zug compares in Switzerland
Against the other 72 places in Switzerland with climate data, for a fixed array at its best angle.
39thof 73 places in Switzerland for sunshine, shared: 3.44 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Switzerland: 1,267 against 1,282 kWh per kWp.
−2 mindaylight on the longest day, compared with Zürich: 15 h 55 min against 15 h 57 min.
39°best year-round tilt here; across Switzerland it runs from 38° in Zürich to 40° in Bellinzona.
Of the 73 places in Switzerland, Martigny-Ville and one other place get the most sun (3.64 peak sun hours a day) and Schaffhausen the least (3.37); Zug ranks joint 39th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.15 kWh a day here, against 2.10 kWh on average in Switzerland. The shortest day lasts 8 h 29 min, +2 min compared with Zürich.
Solar forecast for Zug, 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 Zug
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Places near Zug
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A free, live card for Zug: 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.