Sofia · Bulgaria · 42.91° N · 23.79° E
Solar position in Botevgrad
Sun position, daylight and the best solar panel angle for Botevgrad — computed for 42.91° N, 23.79° E, 385 m above sea level.
The sun right now
Sun in Botevgrad today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:14 | sun 18° below horizon |
| Nautical dawn | 06:46 | 12° below |
| Civil dawn | 07:19 | 6° below |
| Sunrise | 07:48 | 105° ESE |
| Golden hour ends | 08:28 | sun 6° up |
| Solar noon | 13:08 | 35.3° high |
| Golden hour starts | 17:49 | sun 6° up |
| Sunset | 18:28 | 254° WSW |
| Civil dusk | 18:57 | 6° below |
| Nautical dusk | 19:30 | 12° below |
| Astronomical dusk | 20:03 | 18° below |
| Day length | 10 h 40 min | |
Sun path diagram for Botevgrad
Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.
- June solstice
- Equinox
- December solstice
- Today
On the June solstice the sun reaches 70.5° at solar noon in Botevgrad; on the December solstice only 23.7°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:49 | 12:36 | 17:23 | 9 h 33 min | 27.3° |
| February | 07:13 | 12:38 | 18:03 | 10 h 50 min | 36.6° |
| March | 06:26 | 12:32 | 18:38 | 12 h 11 min | 47.4° |
| April | 06:33 | 13:23 | 20:13 | 13 h 40 min | 59.0° |
| May | 05:56 | 13:21 | 20:47 | 14 h 51 min | 67.3° |
| June | 05:46 | 13:26 | 21:07 | 15 h 21 min | 70.5° |
| July | 06:04 | 13:31 | 20:57 | 14 h 52 min | 67.5° |
| August | 06:37 | 13:27 | 20:17 | 13 h 41 min | 59.1° |
| September | 07:10 | 13:17 | 19:24 | 12 h 13 min | 47.7° |
| October | 07:45 | 13:09 | 18:33 | 10 h 48 min | 36.3° |
| November | 07:24 | 12:10 | 16:56 | 9 h 33 min | 27.2° |
| December | 07:52 | 12:22 | 16:53 | 9 h 01 min | 23.7° |
A year of daylight in Botevgrad
Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.
Best solar panel angle in Botevgrad
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: 1355 kWh per kWp.
68°gives the most in the darkest month — the one an off-grid system is sized for.
- Yearly energy
- Worst-month energy
| Tilt | kWh/kWp per year | Share of best year | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1154 | 85% | 1.07 | 4.9× |
| 15° | 1289 | 95% | 1.53 | 3.5× |
| 30° | 1351 | 100% | 1.91 | 2.7× |
| 35° year-round best | 1355 | 100% | 2.02 | 2.5× |
| 43° = latitude | 1343 | 99% | 2.15 | 2.2× |
| 45° | 1337 | 99% | 2.18 | 2.1× |
| 60° | 1247 | 92% | 2.33 | 1.8× |
| 68° off-grid best | 1170 | 86% | 2.35 | 1.6× |
| 70° | 1148 | 85% | 2.35 | 1.6× |
| 90° | 876 | 65% | 2.20 | 1.5× |
A fixed array in Botevgrad produces the most over a year at 35°. The design month for an off-grid system is December: at 68° it makes 2.35 kWh per kWp a day, 16% more than at 35°, and costs 14% of the yearly total. Why steep panels win winter.
Off-grid solar in Botevgrad at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 35° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 35° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.59 | 2.91 | 2.64 | 2.32 | -1.5 °C |
| February | 2.39 | 3.36 | 3.03 | 2.99 | 0.5 °C |
| March | 3.43 | 3.80 | 3.36 | 3.69 | 5.1 °C |
| April | 4.66 | 3.94 | 3.42 | 4.30 | 10.1 °C |
| May | 5.52 | 3.79 | 3.20 | 4.52 | 15.5 °C |
| June | 6.21 | 3.77 | 3.13 | 4.76 | 19.8 °C |
| July | 6.44 | 4.02 | 3.31 | 4.96 | 22.4 °C |
| August | 5.78 | 4.43 | 3.66 | 4.91 | 22.6 °C |
| September | 4.27 | 4.36 | 3.68 | 4.24 | 17.5 °C |
| October | 2.87 | 3.88 | 3.35 | 3.39 | 11.5 °C |
| November | 1.75 | 2.98 | 2.63 | 2.41 | 5.9 °C |
| December snow | 1.32 | 2.61 | 2.35 | 2.02 | 0.2 °C |
| Year | 3.86 avg | 3.66 avg | 1148 kWh | 1355 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 500 Wp of panels at 70°, versus 590 Wp at 35°. The steep array is 14% smaller for the same winter. Size your own system.
Row spacing in Botevgrad
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.
5.7 mrow pitch at 70°
4.7 mrow pitch at 35°
How Botevgrad compares in Bulgaria
Against the other 54 places in Bulgaria with climate data, for a fixed array at its best angle.
48thof 55 places in Bulgaria for sunshine, shared: 3.86 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Bulgaria: 1,355 against 1,377 kWh per kWp.
+2 mindaylight on the longest day, compared with Sofia: 15 h 21 min against 15 h 20 min.
35°best year-round tilt here; across Bulgaria it runs from 32° in Burgas to 35° in Sofia.
Of the 55 places in Bulgaria, Petrich gets the most sun (4.15 peak sun hours a day) and Vidin the least (3.79); Botevgrad ranks joint 48th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.35 kWh a day here, against 2.34 kWh on average in Bulgaria. The shortest day lasts 9 h 01 min, −1 min compared with Sofia.
Solar forecast for Botevgrad, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
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Questions about the sun in Botevgrad
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A free, live card for Botevgrad: where the sun is right now on today's path, a countdown to sunset or sunrise, the daylight change, the moon phase at night and the best panel angle.
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.