Trnava Region · Slovakia · 48.38° N · 17.59° E
Solar position in Trnava
Sun position, daylight and the best solar panel angle for Trnava — computed for 48.38° N, 17.59° E, 147 m above sea level.
The sun right now
Sun in Trnava today
Saturday, 24 October 2026 · local time UTC+2
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:38 | sun 18° below horizon |
| Nautical dawn | 06:14 | 12° below |
| Civil dawn | 06:50 | 6° below |
| Sunrise | 07:22 | 107° ESE |
| Golden hour ends | 08:07 | sun 6° up |
| Solar noon | 12:33 | 29.8° high |
| Golden hour starts | 17:00 | sun 6° up |
| Sunset | 17:44 | 253° WSW |
| Civil dusk | 18:16 | 6° below |
| Nautical dusk | 18:52 | 12° below |
| Astronomical dusk | 19:28 | 18° below |
| Day length | 10 h 21 min | |
Sun path diagram for Trnava
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 65.1° at solar noon in Trnava; on the December solstice only 18.2°. Sunrise swings from 52° NE in June to 126° SE in December — a 74° 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 | 07:31 | 12:01 | 16:31 | 9 h 00 min | 21.8° |
| February | 06:46 | 12:03 | 17:20 | 10 h 34 min | 31.2° |
| March | 05:50 | 11:57 | 18:03 | 12 h 13 min | 42.0° |
| April | 05:48 | 12:48 | 19:49 | 14 h 01 min | 53.6° |
| May | 05:02 | 12:46 | 20:30 | 15 h 28 min | 61.9° |
| June | 04:48 | 12:51 | 20:54 | 16 h 06 min | 65.1° |
| July | 05:10 | 12:56 | 20:40 | 15 h 30 min | 62.0° |
| August | 05:51 | 12:52 | 19:53 | 14 h 01 min | 53.7° |
| September | 06:34 | 12:42 | 18:49 | 12 h 15 min | 42.2° |
| October | 07:18 | 12:34 | 17:49 | 10 h 31 min | 30.9° |
| November | 07:05 | 11:35 | 16:04 | 8 h 59 min | 21.7° |
| December | 07:38 | 11:47 | 15:57 | 8 h 19 min | 18.2° |
A year of daylight in Trnava
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 Trnava
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
37°collects the most energy over a year: 1185 kWh per kWp.
72°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° | 984 | 83% | 0.60 | 7.8× |
| 15° | 1111 | 94% | 0.91 | 5.3× |
| 30° | 1177 | 99% | 1.17 | 4.0× |
| 37° year-round best | 1185 | 100% | 1.27 | 3.6× |
| 45° | 1177 | 99% | 1.37 | 3.2× |
| 48° = latitude | 1169 | 99% | 1.39 | 3.1× |
| 60° | 1112 | 94% | 1.48 | 2.7× |
| 70° | 1034 | 87% | 1.51 | 2.4× |
| 72° off-grid best | 1016 | 86% | 1.51 | 2.4× |
| 90° | 811 | 68% | 1.44 | 1.9× |
A fixed array in Trnava produces the most over a year at 37°. The design month for an off-grid system is December: at 72° it makes 1.51 kWh per kWp a day, 19% more than at 37°, and costs 14% of the yearly total. Why steep panels win winter.
Off-grid solar in Trnava at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 37° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 37° | Mean temp. |
|---|---|---|---|---|---|
| January snow | 0.97 | 2.00 | 1.80 | 1.52 | -2.3 °C |
| February snow | 1.78 | 2.84 | 2.56 | 2.39 | -0.3 °C |
| March | 3.00 | 3.68 | 3.26 | 3.44 | 4.3 °C |
| April | 4.55 | 4.26 | 3.69 | 4.41 | 10.2 °C |
| May | 5.30 | 3.98 | 3.37 | 4.48 | 15.2 °C |
| June | 5.76 | 3.90 | 3.24 | 4.55 | 19.6 °C |
| July | 5.66 | 3.98 | 3.28 | 4.52 | 21.9 °C |
| August | 4.96 | 4.20 | 3.48 | 4.37 | 21.4 °C |
| September | 3.57 | 3.97 | 3.37 | 3.72 | 15.9 °C |
| October | 2.15 | 3.12 | 2.70 | 2.66 | 9.9 °C |
| November | 1.11 | 1.99 | 1.75 | 1.59 | 4.6 °C |
| December snow | 0.78 | 1.69 | 1.51 | 1.27 | -0.9 °C |
| Year | 3.31 avg | 3.30 avg | 1034 kWh | 1185 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 780 Wp of panels at 70°, versus 930 Wp at 37°. The steep array is 16% smaller for the same winter. Size your own system.
Row spacing in Trnava
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.
7.7 mrow pitch at 70°
6.1 mrow pitch at 37°
How Trnava compares in Slovakia
Against the other 58 places in Slovakia with climate data, for a fixed array at its best angle.
18thof 59 places in Slovakia for sunshine, shared: 3.31 peak sun hours a day on flat ground.
+1%solar energy a year compared with the average place in Slovakia: 1,185 against 1,169 kWh per kWp.
+2 mindaylight on the longest day, compared with Bratislava: 16 h 06 min against 16 h 04 min.
37°best year-round tilt here; across Slovakia it runs from 37° in Bratislava to 39° in Prešov.
Of the 59 places in Slovakia, Komárno gets the most sun (3.41 peak sun hours a day) and Čadca the least (3.03); Trnava ranks joint 18th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.51 kWh a day here, against 1.52 kWh on average in Slovakia. The shortest day lasts 8 h 19 min, −2 min compared with Bratislava.
Solar forecast for Trnava, 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 Trnava
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A free, live card for Trnava: 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.