Solarposition.org

Federation of B&H · Bosnia and Herzegovina · 43.34° N · 17.81° E

Solar position in Mostar

Sun position, daylight and the best solar panel angle for Mostar — computed for 43.34° N, 17.81° E, 66 m above sea level.

Sunrise today07:13105° ESE
Sunset today17:51254° WSW
Best panel angle35°year-round, facing south
Off-grid angle66°best for the darkest month

The sun right now

Azimuth180.0°
Elevation34.8°
At solar noon, 12:32Open on the sun map

Sun in Mostar today

Saturday, 24 October 2026 · local time UTC+2

EventTimeDirection / height
Astronomical dawn05:37sun 18° below horizon
Nautical dawn06:1112° below
Civil dawn06:446° below
Sunrise07:13105° ESE
Golden hour ends07:53sun 6° up
Solar noon12:3234.8° high
Golden hour starts17:12sun 6° up
Sunset17:51254° WSW
Civil dusk18:206° below
Nautical dusk18:5412° below
Astronomical dusk19:2718° below
Day length10 h 38 min

Sun path diagram for Mostar

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 70.1° at solar noon in Mostar; on the December solstice only 23.3°. Sunrise swings from 56° NE in June to 122° ESE in December — a 66° 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
January07:1412:0016:459 h 31 min26.8°
February06:3812:0217:2710 h 49 min36.2°
March05:5011:5618:0212 h 12 min47.0°
April05:5712:4719:3813 h 42 min58.6°
May05:1812:4520:1214 h 53 min66.9°
June05:0812:5020:3215 h 24 min70.1°
July05:2712:5520:2214 h 55 min67.1°
August06:0012:5119:4213 h 42 min58.7°
September06:3412:4118:4812 h 14 min47.3°
October07:0912:3317:5610 h 47 min35.9°
November06:4911:3416:199 h 30 min26.7°
December07:1711:4616:158 h 58 min23.3°

A year of daylight in Mostar

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 Mostar

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: 1383 kWh per kWp.

66°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 66°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°117485%1.075.1×
15°131595%1.583.5×
30°1379100%2.002.7×
35° year-round best1383100%2.112.5×
43° = latitude137199%2.262.2×
45°136499%2.292.1×
60°127292%2.431.8×
66° off-grid best121588%2.441.7×
70°117085%2.441.6×
90°88964%2.261.5×

A fixed array in Mostar produces the most over a year at 35°. The design month for an off-grid system is December: at 66° it makes 2.44 kWh per kWp a day, 16% more than at 35°, and costs 12% of the yearly total. Why steep panels win winter.

Off-grid solar in Mostar at 70°

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

0123456January: 2.57 (70°)2.6JanFebruary: 2.82 (70°)2.8FebMarch: 3.34 (70°)3.3MarApril: 3.39 (70°)3.4AprMay: 3.31 (70°)3.3MayJune: 3.30 (70°)3.3JunJuly: 3.49 (70°)3.5JulAugust: 3.83 (70°)3.8AugSeptember: 3.73 (70°)3.7SepOctober: 3.53 (70°)3.5OctNovember: 2.71 (70°)2.7NovDecember: 2.44 (70°)2.4Dec35°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 35°Mean temp.
January1.562.862.572.290.6 °C
February2.243.152.822.781.5 °C
March3.393.773.343.664.8 °C
April4.573.903.394.249.2 °C
May5.623.883.314.6613.6 °C
June6.513.953.305.0318.0 °C
July6.744.213.495.2321.1 °C
August5.964.613.835.1121.5 °C
September4.274.403.734.2816.0 °C
October2.954.083.533.5411.5 °C
November1.773.092.712.476.9 °C
December1.352.732.442.111.9 °C
Year3.92 avg3.72 avg1170 kWh1383 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 Mostar

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.

5.8 mrow pitch at 70°

4.8 mrow pitch at 35°

Row spacing calculator

How Mostar compares in Bosnia and Herzegovina

Against the other 22 places in Bosnia and Herzegovina with climate data, for a fixed array at its best angle.

2ndof 23 places in Bosnia and Herzegovina for sunshine: 3.92 peak sun hours a day on flat ground.

+6%solar energy a year compared with the average place in Bosnia and Herzegovina: 1,383 against 1,304 kWh per kWp.

−4 mindaylight on the longest day, compared with Sarajevo: 15 h 24 min against 15 h 28 min.

35°best year-round tilt here, the same everywhere in Bosnia and Herzegovina.

Of the 23 places in Bosnia and Herzegovina, Trebinje gets the most sun (4.14 peak sun hours a day) and Banja Luka the least (3.60); Mostar ranks 2nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.44 kWh a day here, against 2.08 kWh on average in Bosnia and Herzegovina. The shortest day lasts 8 h 58 min, +4 min compared with Sarajevo.

The sunniest places in Bosnia and Herzegovina

Solar forecast for Mostar, 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 Mostar

What is the best solar panel angle in Mostar?
For a fixed array facing south, the best year-round tilt in Mostar is 35°, worth about 1383 kWh per kWp a year. An off-grid system that has to get through December does better at about 66°.
What time is sunrise and sunset in Mostar today?
On 24 October 2026 the sun rises at 07:13 and sets at 17:51 local time (UTC+2), giving 10 h 38 min of daylight. Solar noon is at 12:32.
How many peak sun hours does Mostar get?
On a flat surface 3.9 hours a day averaged over the year, from 1.3 in December to 6.7 in July. Panels tilted at 70° receive 2.7 sun hours a day in December.
How high does the sun get in Mostar?
At solar noon the sun stands 70.1° above the horizon on the June solstice and 23.3° on the December solstice.
Is Mostar a good place for solar panels?
With 3.9 peak sun hours a day on flat ground, Mostar ranks 2nd of 23 places in Bosnia and Herzegovina for sunshine. A 1 kWp array at the best angle (35°) makes about 1,383 kWh a year here, 6% more than the average place in Bosnia and Herzegovina.

Places near Mostar

All places in Bosnia and Herzegovina

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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.