Solarposition.org

Ahuachapan · El Salvador · 13.92° N · 89.84° W

Solar position in Ahuachapán

Sun position, daylight and the best solar panel angle for Ahuachapán — computed for 13.92° N, 89.84° W, 770 m above sea level.

Sunrise today05:52102° ESE
Sunset today17:34258° WSW
Best panel angle16°year-round, facing south
Off-grid angle8°best for the darkest month

The sun right now

Azimuth180.0°
Elevation64.1°
At solar noon, 11:43Open on the sun map

Sun in Ahuachapán today

Saturday, 24 October 2026 · local time UTC−6

EventTimeDirection / height
Astronomical dawn04:40sun 18° below horizon
Nautical dawn05:0512° below
Civil dawn05:306° below
Sunrise05:52102° ESE
Golden hour ends06:20sun 6° up
Solar noon11:4364.1° high
Golden hour starts17:06sun 6° up
Sunset17:34258° WSW
Civil dusk17:566° below
Nautical dusk18:2112° below
Astronomical dusk18:4618° below
Day length11 h 43 min

Sun path diagram for Ahuachapán

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 solstice6789101112131415161718EquinoxDecember solstice7891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 80.5° at solar noon in Ahuachapán; on the December solstice only 52.6°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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
January06:2712:1017:5411 h 27 min56.3°
February06:1912:1318:0611 h 46 min65.7°
March06:0212:0618:1012 h 08 min76.5°
April05:4211:5818:1312 h 31 min88.1°
May05:3111:5518:2012 h 49 min83.6°
June05:3212:0118:2912 h 57 min80.5°
July05:4012:0518:3012 h 50 min83.6°
August05:4612:0218:1712 h 31 min88.0°
September05:4811:5217:5612 h 08 min76.6°
October05:5111:4317:3611 h 45 min65.2°
November06:0211:4517:2811 h 26 min56.1°
December06:1811:5717:3611 h 18 min52.6°

A year of daylight in Ahuachapán

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 Ahuachapán

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

16°collects the most energy over a year: 1719 kWh per kWp.

8°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 16°Best worst-month 8°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJune kWh/kWp/dayBest ÷ worst month
0°166097%4.421.3×
8° off-grid best170499%4.261.2×
14° = latitude1718100%4.091.3×
15°1719100%4.061.3×
16° year-round best1719100%4.031.3×
30°167798%3.491.6×
45°153990%2.742.1×
60°131577%1.902.9×
70°113066%1.383.8×
90°76745%1.054.1×

A fixed array in Ahuachapán produces the most over a year at 16°. The design month for an off-grid system is June: at 8° it makes 4.26 kWh per kWp a day, 6% more than at 16°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Ahuachapán at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 16° (year-round best).

0123456January: 5.09 (70°)5.1JanFebruary: 4.43 (70°)4.4FebMarch: 3.44 (70°)3.4MarApril: 2.25 (70°)2.2AprMay: 1.60 (70°)1.6MayJune: 1.38 (70°)1.4JunJuly: 1.50 (70°)1.5JulAugust: 1.96 (70°)2.0AugSeptember: 2.60 (70°)2.6SepOctober: 3.28 (70°)3.3OctNovember: 4.51 (70°)4.5NovDecember: 5.19 (70°)5.2Dec16°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 16°Mean temp.
January5.476.185.095.1724.2 °C
February6.045.404.435.3625.1 °C
March6.474.223.445.3426.1 °C
April6.212.792.254.7927.1 °C
May5.572.021.604.1326.7 °C
June5.551.741.384.0325.8 °C
July6.131.891.504.4725.9 °C
August6.022.431.964.5725.8 °C
September5.483.202.604.4125.3 °C
October5.124.013.284.3724.9 °C
November5.285.484.514.8724.4 °C
December5.266.315.195.0524.2 °C
Year5.71 avg3.80 avg1130 kWh1719 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 860 Wp of panels at 70°, versus 290 Wp at 16°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Ahuachapán

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.

2.3 mrow pitch at 70°

2.4 mrow pitch at 16°

Row spacing calculator

How Ahuachapán compares in El Salvador

Against the other 34 places in El Salvador with climate data, for a fixed array at its best angle.

27thof 35 places in El Salvador for sunshine: 5.72 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in El Salvador: 1,719 against 1,725 kWh per kWp.

+1 mindaylight on the longest day, compared with San Salvador: 12 h 57 min against 12 h 56 min.

16°best year-round tilt here, the same everywhere in El Salvador.

Of the 35 places in El Salvador, La Libertad gets the most sun (5.88 peak sun hours a day) and Metapán the least (5.56); Ahuachapán ranks 27th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.38 kWh a day here, against 1.37 kWh on average in El Salvador. The shortest day lasts 11 h 18 min, −1 min compared with San Salvador.

The sunniest places in El Salvador

Solar forecast for Ahuachapán, 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 Ahuachapán

What is the best solar panel angle in Ahuachapán?
For a fixed array facing south, the best year-round tilt in Ahuachapán is 16°, worth about 1719 kWh per kWp a year. An off-grid system that has to get through June does better at about 8°.
What time is sunrise and sunset in Ahuachapán today?
On 24 October 2026 the sun rises at 05:52 and sets at 17:34 local time (UTC−6), giving 11 h 43 min of daylight. Solar noon is at 11:43.
How many peak sun hours does Ahuachapán get?
On a flat surface 5.7 hours a day averaged over the year, from 5.1 in October to 6.5 in March. Panels tilted at 70° receive 1.7 sun hours a day in June.
How high does the sun get in Ahuachapán?
At solar noon the sun stands 80.5° above the horizon on the June solstice and 52.6° on the December solstice.
Is Ahuachapán a good place for solar panels?
With 5.7 peak sun hours a day on flat ground, Ahuachapán ranks 27th of 35 places in El Salvador for sunshine. A 1 kWp array at the best angle (16°) makes about 1,719 kWh a year here, as much as the average place in El Salvador.

Places near Ahuachapán

All places in El Salvador

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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.