Solarposition.org

California · United States · 33.57° N · 117.73° W

Solar position in Aliso Viejo

Sun position, daylight and the best solar panel angle for Aliso Viejo — computed for 33.57° N, 117.73° W, 143 m above sea level.

Sunrise today07:03104° ESE
Sunset today18:06256° WSW
Best panel angle31°year-round, facing south
Off-grid angle46°best for the darkest month

The sun right now

Azimuth180.0°
Elevation44.5°
At solar noon, 12:34Open on the sun map

Sun in Aliso Viejo today

Saturday, 24 October 2026 · local time UTC−7

EventTimeDirection / height
Astronomical dawn05:39sun 18° below horizon
Nautical dawn06:0812° below
Civil dawn06:376° below
Sunrise07:03104° ESE
Golden hour ends07:37sun 6° up
Solar noon12:3444.5° high
Golden hour starts17:32sun 6° up
Sunset18:06256° WSW
Civil dusk18:316° below
Nautical dusk19:0112° below
Astronomical dusk19:2918° below
Day length11 h 04 min

Sun path diagram for Aliso Viejo

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 solstice678910111213141516171819EquinoxDecember solstice78910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 79.9° at solar noon in Aliso Viejo; on the December solstice only 33.0°. Sunrise swings from 61° ENE in June to 118° ESE in December — a 57° 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
January06:5312:0217:1110 h 19 min36.7°
February06:2812:0417:4011 h 13 min46.1°
March06:5312:5819:0312 h 10 min56.9°
April06:1312:4919:2613 h 13 min68.5°
May05:4612:4719:4814 h 03 min76.7°
June05:4112:5220:0414 h 23 min79.9°
July05:5512:5719:5814 h 03 min76.8°
August06:1712:5319:2913 h 12 min68.3°
September06:3812:4318:4812 h 10 min56.9°
October07:0012:3518:0911 h 09 min45.5°
November06:2811:3616:4510 h 17 min36.4°
December06:5111:4916:469 h 56 min33.0°

A year of daylight in Aliso Viejo

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 Aliso Viejo

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

31°collects the most energy over a year: 1823 kWh per kWp.

46°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 31°Best worst-month 46°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°159387%2.312.5×
15°176297%3.211.8×
30°1823100%3.891.4×
31° year-round best1823100%3.931.4×
34° = latitude1821100%4.041.4×
45°177497%4.321.2×
46° off-grid best176797%4.341.2×
60°161989%4.481.4×
70°146380%4.421.7×
90°105658%3.933.2×

A fixed array in Aliso Viejo produces the most over a year at 31°. The design month for an off-grid system is December: at 46° it makes 4.34 kWh per kWp a day, 10% more than at 31°, and costs 3% of the yearly total. Why steep panels win winter.

Off-grid solar in Aliso Viejo at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 31° (year-round best).

0123456January: 4.63 (70°)4.6JanFebruary: 4.62 (70°)4.6FebMarch: 4.57 (70°)4.6MarApril: 3.91 (70°)3.9AprMay: 3.10 (70°)3.1MayJune: 2.73 (70°)2.7JunJuly: 2.89 (70°)2.9JulAugust: 3.55 (70°)3.5AugSeptember: 4.30 (70°)4.3SepOctober: 4.66 (70°)4.7OctNovember: 4.77 (70°)4.8NovDecember: 4.42 (70°)4.4Dec31°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 31°Mean temp.
January3.235.394.634.2313.4 °C
February4.105.384.624.7013.2 °C
March5.375.344.575.3614.3 °C
April6.494.603.915.6015.2 °C
May6.913.693.105.3216.9 °C
June7.153.282.735.1819.1 °C
July7.243.512.895.2822.0 °C
August6.924.293.555.5322.5 °C
September5.885.184.305.4122.1 °C
October4.575.554.664.9319.4 °C
November3.535.624.774.4516.4 °C
December2.895.144.423.9313.2 °C
Year5.36 avg4.74 avg1463 kWh1823 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 430 Wp of panels at 70°, versus 300 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Aliso Viejo

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.

4.0 mrow pitch at 70°

3.5 mrow pitch at 31°

Row spacing calculator

How Aliso Viejo compares in the United States

Against the other 3,120 places in the United States with climate data, for a fixed array at its best angle.

333rdof 3,121 places in the United States for sunshine, shared: 5.36 peak sun hours a day on flat ground.

+20%solar energy a year compared with the average place in the United States: 1,823 against 1,515 kWh per kWp.

−43 mindaylight on the longest day, compared with New York City: 14 h 23 min against 15 h 06 min.

31°best year-round tilt here; across the United States it runs from 18° in Honolulu to 53° in Fairbanks.

Of the 3,121 places in the United States, Fortuna Foothills and 2 other places get the most sun (5.96 peak sun hours a day) and Juneau the least (2.38); Aliso Viejo ranks joint 333rd. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.73 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 9 h 56 min, +40 min compared with New York City.

The sunniest places in the United States

Solar forecast for Aliso Viejo, 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 Aliso Viejo

What is the best solar panel angle in Aliso Viejo?
For a fixed array facing south, the best year-round tilt in Aliso Viejo is 31°, worth about 1823 kWh per kWp a year. An off-grid system that has to get through December does better at about 46°.
What time is sunrise and sunset in Aliso Viejo today?
On 24 October 2026 the sun rises at 07:03 and sets at 18:06 local time (UTC−7), giving 11 h 04 min of daylight. Solar noon is at 12:34.
How many peak sun hours does Aliso Viejo get?
On a flat surface 5.4 hours a day averaged over the year, from 2.9 in December to 7.2 in July. Panels tilted at 70° receive 3.3 sun hours a day in June.
How high does the sun get in Aliso Viejo?
At solar noon the sun stands 79.9° above the horizon on the June solstice and 33.0° on the December solstice.
Is Aliso Viejo a good place for solar panels?
With 5.4 peak sun hours a day on flat ground, Aliso Viejo ranks joint 333rd of 3,121 places in the United States for sunshine. A 1 kWp array at the best angle (31°) makes about 1,823 kWh a year here, 20% more than the average place in the United States.

Places near Aliso Viejo

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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.