Alba County · Romania · 46.18° N · 23.92° E
Solar position in Blaj
Sun position, daylight and the best solar panel angle for Blaj — computed for 46.18° N, 23.92° E, 246 m above sea level.
The sun right now
Sun in Blaj today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:13 | sun 18° below horizon |
| Nautical dawn | 06:47 | 12° below |
| Civil dawn | 07:22 | 6° below |
| Sunrise | 07:53 | 106° ESE |
| Golden hour ends | 08:35 | sun 6° up |
| Solar noon | 13:08 | 32.0° high |
| Golden hour starts | 17:40 | sun 6° up |
| Sunset | 18:22 | 254° WSW |
| Civil dusk | 18:53 | 6° below |
| Nautical dusk | 19:28 | 12° below |
| Astronomical dusk | 20:03 | 18° below |
| Day length | 10 h 29 min | |
Sun path diagram for Blaj
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 67.3° at solar noon in Blaj; on the December solstice only 20.4°. Sunrise swings from 54° NE in June to 124° SE in December — a 70° 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 | 07:58 | 12:35 | 17:12 | 9 h 14 min | 24.0° |
| February | 07:17 | 12:38 | 17:58 | 10 h 41 min | 33.4° |
| March | 06:25 | 12:31 | 18:37 | 12 h 12 min | 44.2° |
| April | 06:27 | 13:23 | 20:19 | 13 h 52 min | 55.8° |
| May | 05:45 | 13:21 | 20:57 | 15 h 12 min | 64.1° |
| June | 05:32 | 13:26 | 21:19 | 15 h 47 min | 67.3° |
| July | 05:53 | 13:30 | 21:07 | 15 h 14 min | 64.3° |
| August | 06:30 | 13:27 | 20:23 | 13 h 53 min | 55.9° |
| September | 07:09 | 13:17 | 19:24 | 12 h 15 min | 44.5° |
| October | 07:49 | 13:08 | 18:27 | 10 h 38 min | 33.1° |
| November | 07:33 | 12:09 | 16:46 | 9 h 13 min | 23.9° |
| December | 08:03 | 12:22 | 16:40 | 8 h 37 min | 20.4° |
A year of daylight in Blaj
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 Blaj
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
38°collects the most energy over a year: 1281 kWh per kWp.
74°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° | 1063 | 83% | 0.82 | 5.8× |
| 15° | 1201 | 94% | 1.22 | 4.0× |
| 30° | 1272 | 99% | 1.56 | 3.1× |
| 38° year-round best | 1281 | 100% | 1.71 | 2.7× |
| 45° | 1272 | 99% | 1.82 | 2.5× |
| 46° = latitude | 1270 | 99% | 1.83 | 2.5× |
| 60° | 1203 | 94% | 1.98 | 2.1× |
| 70° | 1121 | 87% | 2.03 | 1.8× |
| 74° off-grid best | 1080 | 84% | 2.03 | 1.7× |
| 90° | 882 | 69% | 1.97 | 1.4× |
A fixed array in Blaj produces the most over a year at 38°. The design month for an off-grid system is December: at 74° it makes 2.03 kWh per kWp a day, 19% more than at 38°, and costs 16% of the yearly total. Why steep panels win winter.
Off-grid solar in Blaj at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 38° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 38° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 1.29 | 2.57 | 2.35 | 2.03 | -4.0 °C |
| February snow | 2.09 | 3.33 | 3.02 | 2.79 | -2.2 °C |
| March | 3.23 | 3.79 | 3.39 | 3.64 | 2.4 °C |
| April | 4.45 | 3.98 | 3.48 | 4.23 | 8.2 °C |
| May | 5.30 | 3.85 | 3.28 | 4.41 | 13.5 °C |
| June | 5.86 | 3.81 | 3.19 | 4.56 | 17.4 °C |
| July | 5.88 | 3.96 | 3.30 | 4.64 | 19.5 °C |
| August | 5.34 | 4.35 | 3.63 | 4.66 | 19.7 °C |
| September | 3.82 | 4.09 | 3.49 | 3.92 | 14.5 °C |
| October | 2.60 | 3.76 | 3.28 | 3.27 | 8.7 °C |
| November | 1.49 | 2.72 | 2.41 | 2.21 | 3.4 °C |
| December snow | 1.03 | 2.24 | 2.03 | 1.71 | -2.4 °C |
| Year | 3.54 avg | 3.54 avg | 1121 kWh | 1281 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 580 Wp of panels at 70°, versus 690 Wp at 38°. The steep array is 16% smaller for the same winter. Size your own system.
Row spacing in Blaj
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.
6.7 mrow pitch at 70°
5.5 mrow pitch at 38°
How Blaj compares in Romania
Against the other 125 places in Romania with climate data, for a fixed array at its best angle.
90thof 126 places in Romania for sunshine, shared: 3.54 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Romania: 1,281 against 1,300 kWh per kWp.
+14 mindaylight on the longest day, compared with Bucharest: 15 h 47 min against 15 h 33 min.
38°best year-round tilt here; across Romania it runs from 33° in Mangalia to 39° in Bistriţa.
Of the 126 places in Romania, Mangalia gets the most sun (3.93 peak sun hours a day) and Vişeu de Sus and one other place the least (3.33); Blaj ranks joint 90th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.03 kWh a day here, against 2.01 kWh on average in Romania. The shortest day lasts 8 h 37 min, −13 min compared with Bucharest.
Solar forecast for Blaj, 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 Blaj
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A free, live card for Blaj: 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.