Solarposition.org

Washington · United States · 47.39° N · 122.05° W

Solar position in Maple Valley

Sun position, daylight and the best solar panel angle for Maple Valley — computed for 47.39° N, 122.05° W, 128 m above sea level.

Sunrise today07:40107° ESE
Sunset today18:03253° WSW
Best panel angle37°year-round, facing south
Off-grid angle69°best for the darkest month

The sun right now

Azimuth180.0°
Elevation30.7°
At solar noon, 12:52Open on the sun map

Sun in Maple Valley today

Saturday, 24 October 2026 · local time UTC−7

EventTimeDirection / height
Astronomical dawn05:57sun 18° below horizon
Nautical dawn06:3212° below
Civil dawn07:086° below
Sunrise07:40107° ESE
Golden hour ends08:23sun 6° up
Solar noon12:5230.7° high
Golden hour starts17:20sun 6° up
Sunset18:03253° WSW
Civil dusk18:356° below
Nautical dusk19:1112° below
Astronomical dusk19:4618° below
Day length10 h 24 min

Sun path diagram for Maple Valley

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 solstice910111213141516Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 66.1° at solar noon in Maple Valley; on the December solstice only 19.2°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:4612:1916:539 h 07 min22.9°
February07:0212:2217:4110 h 39 min32.3°
March07:0813:1519:2212 h 14 min43.1°
April06:0813:0620:0613 h 58 min54.7°
May05:2413:0420:4515 h 21 min62.9°
June05:1113:1021:0815 h 57 min66.1°
July05:3313:1420:5515 h 22 min63.0°
August06:1213:1120:0813 h 56 min54.5°
September06:5313:0019:0712 h 14 min43.1°
October07:3512:5218:0910 h 33 min31.7°
November07:2111:5316:269 h 04 min22.6°
December07:5212:0616:208 h 27 min19.2°

A year of daylight in Maple Valley

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 Maple Valley

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: 1300 kWh per kWp.

69°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 37°Best worst-month 69°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°108283%0.698.0×
15°122394%1.055.4×
30°129399%1.344.1×
37° year-round best1300100%1.453.7×
45°128899%1.563.3×
47° = latitude128299%1.583.2×
60°121093%1.672.7×
69° off-grid best113087%1.692.4×
70°112086%1.692.4×
90°86366%1.582.0×

A fixed array in Maple Valley produces the most over a year at 37°. The design month for an off-grid system is December: at 69° it makes 1.69 kWh per kWp a day, 16% more than at 37°, and costs 13% of the yearly total. Why steep panels win winter.

Off-grid solar in Maple Valley at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).

0123456January: 1.86 (70°)1.9JanFebruary: 2.82 (70°)2.8FebMarch: 3.09 (70°)3.1MarApril: 3.47 (70°)3.5AprMay: 3.45 (70°)3.5MayJune: 3.37 (70°)3.4JunJuly: 3.76 (70°)3.8JulAugust: 4.01 (70°)4.0AugSeptember: 4.01 (70°)4.0SepOctober: 3.16 (70°)3.2OctNovember: 2.11 (70°)2.1NovDecember: 1.69 (70°)1.7Dec37°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 37°Mean temp.
January1.102.091.861.661.8 °C
February2.023.162.822.702.0 °C
March2.993.483.093.314.2 °C
April4.363.953.474.196.6 °C
May5.454.013.454.6610.9 °C
June6.033.963.374.8313.5 °C
July6.684.463.765.3716.8 °C
August5.674.754.015.1116.9 °C
September4.094.684.014.4113.9 °C
October2.423.633.163.108.9 °C
November1.292.392.111.904.3 °C
December0.891.901.691.451.2 °C
Year3.59 avg3.54 avg1120 kWh1300 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 700 Wp of panels at 70°, versus 810 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Maple Valley

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.

7.2 mrow pitch at 70°

5.8 mrow pitch at 37°

Row spacing calculator

How Maple Valley 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.

3033rdof 3,121 places in the United States for sunshine, shared: 3.59 peak sun hours a day on flat ground.

−14%solar energy a year compared with the average place in the United States: 1,300 against 1,515 kWh per kWp.

+52 mindaylight on the longest day, compared with New York City: 15 h 57 min against 15 h 06 min.

37°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); Maple Valley ranks joint 3033rd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.69 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 8 h 27 min, −48 min compared with New York City.

The sunniest places in the United States

Solar forecast for Maple Valley, 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 Maple Valley

What is the best solar panel angle in Maple Valley?
For a fixed array facing south, the best year-round tilt in Maple Valley is 37°, worth about 1300 kWh per kWp a year. An off-grid system that has to get through December does better at about 69°.
What time is sunrise and sunset in Maple Valley today?
On 24 October 2026 the sun rises at 07:40 and sets at 18:03 local time (UTC−7), giving 10 h 24 min of daylight. Solar noon is at 12:52.
How many peak sun hours does Maple Valley get?
On a flat surface 3.6 hours a day averaged over the year, from 0.9 in December to 6.7 in July. Panels tilted at 70° receive 1.9 sun hours a day in December.
How high does the sun get in Maple Valley?
At solar noon the sun stands 66.1° above the horizon on the June solstice and 19.2° on the December solstice.
Is Maple Valley a good place for solar panels?
With 3.6 peak sun hours a day on flat ground, Maple Valley ranks joint 3033rd of 3,121 places in the United States for sunshine. A 1 kWp array at the best angle (37°) makes about 1,300 kWh a year here, 14% less than the average place in the United States.

Places near Maple Valley

All places in United States

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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.