Solarposition.org

Tuscany · Italy · 43.57° N · 11.53° E

Solar position in San Giovanni Valdarno

Sun position, daylight and the best solar panel angle for San Giovanni Valdarno — computed for 43.57° N, 11.53° E, 134 m above sea level.

Sunrise today07:39106° ESE
Sunset today18:16254° WSW
Best panel angle35°year-round, facing south
Off-grid angle67°best for the darkest month

The sun right now

Azimuth180.0°
Elevation34.6°
At solar noon, 12:57Open on the sun map

Sun in San Giovanni Valdarno today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn06:03sun 18° below horizon
Nautical dawn06:3612° below
Civil dawn07:096° below
Sunrise07:39106° ESE
Golden hour ends08:18sun 6° up
Solar noon12:5734.6° high
Golden hour starts17:36sun 6° up
Sunset18:16254° WSW
Civil dusk18:456° below
Nautical dusk19:1912° below
Astronomical dusk19:5218° below
Day length10 h 37 min

Sun path diagram for San Giovanni Valdarno

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice67891011121314151617181920EquinoxDecember solstice8910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 69.9° at solar noon in San Giovanni Valdarno; on the December solstice only 23.0°. Sunrise swings from 56° NE in June to 122° ESE in December — a 67° 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:4012:2517:109 h 30 min26.6°
February07:0312:2717:5210 h 48 min36.0°
March06:1512:2118:2712 h 12 min46.8°
April06:2113:1220:0413 h 42 min58.4°
May05:4313:1020:3814 h 55 min66.7°
June05:3213:1520:5815 h 26 min69.9°
July05:5113:2020:4814 h 56 min66.9°
August06:2513:1620:0813 h 43 min58.5°
September06:5913:0619:1312 h 14 min47.0°
October07:3512:5818:2110 h 46 min35.7°
November07:1511:5916:439 h 29 min26.5°
December07:4312:1116:408 h 56 min23.0°

A year of daylight in San Giovanni Valdarno

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in San Giovanni Valdarno

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

35°collects the most energy over a year: 1404 kWh per kWp.

67°gives the most in the darkest month — the one an off-grid system is sized for.

40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 35°Best worst-month 67°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°119285%1.045.4×
15°133595%1.563.7×
30°1400100%1.982.8×
35° year-round best1404100%2.102.6×
44° = latitude138899%2.262.2×
45°138599%2.282.2×
60°129092%2.431.8×
67° off-grid best122187%2.451.6×
70°118785%2.441.6×
90°90164%2.261.4×

A fixed array in San Giovanni Valdarno produces the most over a year at 35°. The design month for an off-grid system is December: at 67° it makes 2.45 kWh per kWp a day, 17% more than at 35°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in San Giovanni Valdarno at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 35° (year-round best).

0123456January: 2.62 (70°)2.6JanFebruary: 3.13 (70°)3.1FebMarch: 3.49 (70°)3.5MarApril: 3.54 (70°)3.5AprMay: 3.44 (70°)3.4MayJune: 3.41 (70°)3.4JunJuly: 3.59 (70°)3.6JulAugust: 3.86 (70°)3.9AugSeptember: 3.78 (70°)3.8SepOctober: 3.25 (70°)3.2OctNovember: 2.48 (70°)2.5NovDecember: 2.44 (70°)2.4Dec35°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 35°Mean temp.
January1.542.952.622.313.6 °C
February2.353.523.133.034.5 °C
March3.523.993.493.817.7 °C
April4.794.103.544.4211.5 °C
May5.884.073.444.8415.9 °C
June6.824.123.415.2021.3 °C
July7.044.393.595.3924.6 °C
August6.044.703.865.1324.2 °C
September4.364.503.784.3318.9 °C
October2.833.803.253.2914.2 °C
November1.672.842.482.279.0 °C
December1.332.762.442.104.8 °C
Year4.02 avg3.81 avg1187 kWh1404 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 480 Wp of panels at 70°, versus 560 Wp at 35°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in San Giovanni Valdarno

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.

5.9 mrow pitch at 70°

4.8 mrow pitch at 35°

Row spacing calculator

How San Giovanni Valdarno compares in Italy

Against the other 596 places in Italy with climate data, for a fixed array at its best angle.

359thof 597 places in Italy for sunshine, shared: 4.02 peak sun hours a day on flat ground.

−3%solar energy a year compared with the average place in Italy: 1,404 against 1,452 kWh per kWp.

+12 mindaylight on the longest day, compared with Rome: 15 h 26 min against 15 h 14 min.

35°best year-round tilt here; across Italy it runs from 30° in Palermo to 42° in Bolzano.

Of the 597 places in Italy, Pozzallo and one other place get the most sun (4.91 peak sun hours a day) and Bressanone the least (3.51); San Giovanni Valdarno ranks joint 359th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.44 kWh a day here, against 2.63 kWh on average in Italy. The shortest day lasts 8 h 56 min, −11 min compared with Rome.

The sunniest places in Italy

Solar forecast for San Giovanni Valdarno, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in San Giovanni Valdarno

What is the best solar panel angle in San Giovanni Valdarno?
For a fixed array facing south, the best year-round tilt in San Giovanni Valdarno is 35°, worth about 1404 kWh per kWp a year. An off-grid system that has to get through December does better at about 67°.
What time is sunrise and sunset in San Giovanni Valdarno today?
On 24 October 2026 the sun rises at 07:39 and sets at 18:16 local time (UTC+2), giving 10 h 37 min of daylight. Solar noon is at 12:57.
How many peak sun hours does San Giovanni Valdarno get?
On a flat surface 4.0 hours a day averaged over the year, from 1.3 in December to 7.0 in July. Panels tilted at 70° receive 2.8 sun hours a day in December.
How high does the sun get in San Giovanni Valdarno?
At solar noon the sun stands 69.9° above the horizon on the June solstice and 23.0° on the December solstice.
Is San Giovanni Valdarno a good place for solar panels?
With 4.0 peak sun hours a day on flat ground, San Giovanni Valdarno ranks joint 359th of 597 places in Italy for sunshine. A 1 kWp array at the best angle (35°) makes about 1,404 kWh a year here, 3% less than the average place in Italy.

Places near San Giovanni Valdarno

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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.