Kaunas · Lithuania · 55.08° N · 24.28° E
Solar position in Jonava
Sun position, daylight and the best solar panel angle for Jonava — computed for 55.08° N, 24.28° E, 67 m above sea level.
The sun right now
Sun in Jonava today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 06:08 | sun 18° below horizon |
| Nautical dawn | 06:50 | 12° below |
| Civil dawn | 07:32 | 6° below |
| Sunrise | 08:10 | 110° ESE |
| Golden hour ends | 09:03 | sun 6° up |
| Solar noon | 13:06 | 23.1° high |
| Golden hour starts | 17:10 | sun 6° up |
| Sunset | 18:03 | 250° WSW |
| Civil dusk | 18:40 | 6° below |
| Nautical dusk | 19:22 | 12° below |
| Astronomical dusk | 20:04 | 18° below |
| Day length | 9 h 53 min | |
Sun path diagram for Jonava
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 58.4° at solar noon in Jonava; on the December solstice only 11.6°. Sunrise swings from 44° NE in June to 132° SE in December — a 88° 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 | 08:31 | 12:34 | 16:37 | 8 h 05 min | 15.1° |
| February | 07:32 | 12:36 | 17:41 | 10 h 09 min | 24.5° |
| March | 06:23 | 12:30 | 18:38 | 12 h 15 min | 35.3° |
| April | 06:05 | 13:21 | 20:38 | 14 h 33 min | 46.9° |
| May | 05:05 | 13:19 | 21:34 | 16 h 30 min | 55.2° |
| June | 04:42 | 13:24 | 22:06 | 17 h 24 min | 58.4° |
| July | 05:12 | 13:29 | 21:45 | 16 h 33 min | 55.3° |
| August | 06:08 | 13:25 | 20:42 | 14 h 35 min | 47.0° |
| September | 07:06 | 13:15 | 19:24 | 12 h 18 min | 35.6° |
| October | 08:04 | 13:07 | 18:09 | 10 h 06 min | 24.2° |
| November | 08:06 | 12:08 | 16:10 | 8 h 04 min | 15.0° |
| December | 08:46 | 12:20 | 15:55 | 7 h 09 min | 11.6° |
A year of daylight in Jonava
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 Jonava
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
41°collects the most energy over a year: 1077 kWh per kWp.
80°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° | 860 | 80% | 0.25 | 18.5× |
| 15° | 987 | 92% | 0.43 | 11.3× |
| 30° | 1060 | 98% | 0.59 | 8.2× |
| 41° year-round best | 1077 | 100% | 0.69 | 6.8× |
| 45° | 1075 | 100% | 0.73 | 6.4× |
| 55° = latitude | 1052 | 98% | 0.79 | 5.6× |
| 60° | 1031 | 96% | 0.82 | 5.2× |
| 70° | 971 | 90% | 0.85 | 4.5× |
| 80° off-grid best | 888 | 82% | 0.86 | 3.9× |
| 90° | 785 | 73% | 0.85 | 3.5× |
A fixed array in Jonava produces the most over a year at 41°. The design month for an off-grid system is December: at 80° it makes 0.86 kWh per kWp a day, 24% more than at 41°, and costs 18% of the yearly total. Why steep panels win winter.
Off-grid solar in Jonava at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 41° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 41° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.53 | 1.33 | 1.20 | 1.00 | -6.0 °C |
| February snow | 1.26 | 2.38 | 2.17 | 1.94 | -5.1 °C |
| March snow | 2.58 | 3.73 | 3.37 | 3.32 | -0.3 °C |
| April | 4.06 | 4.27 | 3.76 | 4.25 | 6.3 °C |
| May | 5.33 | 4.44 | 3.80 | 4.74 | 12.4 °C |
| June | 5.69 | 4.26 | 3.60 | 4.68 | 15.8 °C |
| July | 5.28 | 4.13 | 3.45 | 4.40 | 18.4 °C |
| August | 4.38 | 4.10 | 3.45 | 4.07 | 17.4 °C |
| September | 2.99 | 3.70 | 3.17 | 3.36 | 12.6 °C |
| October | 1.46 | 2.41 | 2.11 | 2.02 | 6.3 °C |
| November | 0.55 | 1.12 | 0.97 | 0.87 | 1.8 °C |
| December snow | 0.35 | 0.96 | 0.85 | 0.69 | -3.0 °C |
| Year | 2.88 avg | 3.07 avg | 971 kWh | 1077 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 1,390 Wp of panels at 70°, versus 1,700 Wp at 41°. The steep array is 18% smaller for the same winter. Size your own system.
Row spacing in Jonava
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.
13.5 mrow pitch at 70°
10.5 mrow pitch at 41°
How Jonava compares in Lithuania
Against the other 19 places in Lithuania with climate data, for a fixed array at its best angle.
14thof 20 places in Lithuania for sunshine, shared: 2.88 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Lithuania: 1,077 against 1,084 kWh per kWp.
+6 mindaylight on the longest day, compared with Vilnius: 17 h 24 min against 17 h 18 min.
41°best year-round tilt here; across Lithuania it runs from 40° in Klaipėda to 42° in Šiauliai.
Of the 20 places in Lithuania, Taurage and 4 other places get the most sun (2.93 peak sun hours a day) and Vilnius the least (2.86); Jonava ranks joint 14th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 0.85 kWh a day here, against 0.78 kWh on average in Lithuania. The shortest day lasts 7 h 09 min, −5 min compared with Vilnius.
Solar forecast for Jonava, 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 Jonava
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Places near Jonava
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A free, live card for Jonava: 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.