Solarposition.org

Washington · United States · 47.49° N · 122.24° W

Solar position in Bryn Mawr-Skyway

Sun position, daylight and the best solar panel angle for Bryn Mawr-Skyway — computed for 47.49° N, 122.24° W, 118 m above sea level.

Sunrise today07:41107° ESE
Sunset today18:04253° WSW
Best panel angle37°year-round, facing south
Off-grid angle69°best for the darkest month

The sun right now

Azimuth180.0°
Elevation30.6°
At solar noon, 12:52Open on the sun map

Sun in Bryn Mawr-Skyway today

Saturday, 24 October 2026 · local time UTC−7

EventTimeDirection / height
Astronomical dawn05:58sun 18° below horizon
Nautical dawn06:3312° below
Civil dawn07:096° below
Sunrise07:41107° ESE
Golden hour ends08:24sun 6° up
Solar noon12:5230.6° high
Golden hour starts17:21sun 6° up
Sunset18:04253° WSW
Civil dusk18:356° below
Nautical dusk19:1112° below
Astronomical dusk19:4718° below
Day length10 h 23 min

Sun path diagram for Bryn Mawr-Skyway

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 65.9° at solar noon in Bryn Mawr-Skyway; on the December solstice only 19.1°. 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
January07:4712:2016:539 h 07 min22.8°
February07:0312:2217:4210 h 38 min32.2°
March07:0913:1619:2312 h 14 min43.0°
April06:0813:0720:0713 h 58 min54.6°
May05:2413:0520:4715 h 22 min62.8°
June05:1113:1021:0915 h 58 min65.9°
July05:3313:1520:5615 h 22 min62.9°
August06:1313:1120:0913 h 56 min54.4°
September06:5413:0119:0812 h 14 min43.0°
October07:3612:5318:0910 h 33 min31.6°
November07:2211:5416:269 h 04 min22.5°
December07:5312:0716:208 h 26 min19.1°

A year of daylight in Bryn Mawr-Skyway

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 Bryn Mawr-Skyway

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: 1264 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°105383%0.678.0×
15°118994%1.025.5×
30°125799%1.304.1×
37° year-round best1264100%1.413.7×
45°125299%1.513.3×
47° = latitude124699%1.533.2×
60°117693%1.632.7×
69° off-grid best109987%1.642.4×
70°108986%1.642.4×
90°84066%1.542.0×

A fixed array in Bryn Mawr-Skyway produces the most over a year at 37°. The design month for an off-grid system is December: at 69° it makes 1.64 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 Bryn Mawr-Skyway at 70°

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

0123456January: 1.79 (70°)1.8JanFebruary: 2.74 (70°)2.7FebMarch: 2.99 (70°)3.0MarApril: 3.37 (70°)3.4AprMay: 3.39 (70°)3.4MayJune: 3.30 (70°)3.3JunJuly: 3.68 (70°)3.7JulAugust: 3.92 (70°)3.9AugSeptember: 3.90 (70°)3.9SepOctober: 3.03 (70°)3.0OctNovember: 2.03 (70°)2.0NovDecember: 1.64 (70°)1.6Dec37°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 37°Mean temp.
January1.062.031.791.603.0 °C
February1.973.082.742.623.2 °C
March2.923.392.993.215.3 °C
April4.263.863.374.067.7 °C
May5.363.953.394.5611.8 °C
June5.893.893.304.7114.3 °C
July6.524.383.685.2417.4 °C
August5.544.653.924.9917.5 °C
September4.004.573.904.2914.5 °C
October2.353.493.032.989.7 °C
November1.252.312.031.835.4 °C
December0.871.861.641.412.4 °C
Year3.51 avg3.45 avg1089 kWh1264 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 720 Wp of panels at 70°, versus 830 Wp at 37°. The steep array is 14% smaller for the same winter. Size your own system.

Row spacing in Bryn Mawr-Skyway

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.

7.3 mrow pitch at 70°

5.8 mrow pitch at 37°

Row spacing calculator

How Bryn Mawr-Skyway 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.

3069thof 3,121 places in the United States for sunshine, shared: 3.51 peak sun hours a day on flat ground.

−17%solar energy a year compared with the average place in the United States: 1,264 against 1,515 kWh per kWp.

+53 mindaylight on the longest day, compared with New York City: 15 h 58 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); Bryn Mawr-Skyway ranks joint 3069th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.64 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 8 h 26 min, −49 min compared with New York City.

The sunniest places in the United States

Solar forecast for Bryn Mawr-Skyway, 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 Bryn Mawr-Skyway

What is the best solar panel angle in Bryn Mawr-Skyway?
For a fixed array facing south, the best year-round tilt in Bryn Mawr-Skyway is 37°, worth about 1264 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 Bryn Mawr-Skyway today?
On 24 October 2026 the sun rises at 07:41 and sets at 18:04 local time (UTC−7), giving 10 h 23 min of daylight. Solar noon is at 12:52.
How many peak sun hours does Bryn Mawr-Skyway get?
On a flat surface 3.5 hours a day averaged over the year, from 0.9 in December to 6.5 in July. Panels tilted at 70° receive 1.9 sun hours a day in December.
How high does the sun get in Bryn Mawr-Skyway?
At solar noon the sun stands 65.9° above the horizon on the June solstice and 19.1° on the December solstice.
Is Bryn Mawr-Skyway a good place for solar panels?
With 3.5 peak sun hours a day on flat ground, Bryn Mawr-Skyway ranks joint 3069th of 3,121 places in the United States for sunshine. A 1 kWp array at the best angle (37°) makes about 1,264 kWh a year here, 17% less than the average place in the United States.

Places near Bryn Mawr-Skyway

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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.