Rio Grande do Sul · Brazil · 29.89° S · 50.27° W
Solar position in Osório
Sun position, daylight and the best solar panel angle for Osório — computed for 29.89° S, 50.27° W, 18 m above sea level.
The sun right now
Sun in Osório today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:09 | sun 18° below horizon |
| Nautical dawn | 04:39 | 12° below |
| Civil dawn | 05:09 | 6° below |
| Sunrise | 05:33 | 104° ESE |
| Golden hour ends | 06:05 | sun 6° up |
| Solar noon | 12:05 | 72.0° high |
| Golden hour starts | 18:04 | sun 6° up |
| Sunset | 18:37 | 256° WSW |
| Civil dusk | 19:02 | 6° below |
| Nautical dusk | 19:31 | 12° below |
| Astronomical dusk | 20:01 | 18° below |
| Day length | 13 h 03 min | |
Sun path diagram for Osório
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 36.7° at solar noon in Osório; on the December solstice only 83.6°. Sunrise swings from 63° ENE in June to 118° ESE in December — a 55° 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 | 05:40 | 12:32 | 19:24 | 13 h 44 min | 79.9° |
| February | 06:06 | 12:34 | 19:02 | 12 h 56 min | 70.5° |
| March | 06:25 | 12:28 | 18:30 | 12 h 06 min | 59.7° |
| April | 06:43 | 12:19 | 17:55 | 11 h 12 min | 48.1° |
| May | 07:02 | 12:17 | 17:32 | 10 h 30 min | 39.9° |
| June | 07:16 | 12:22 | 17:29 | 10 h 13 min | 36.7° |
| July | 07:12 | 12:27 | 17:42 | 10 h 30 min | 39.8° |
| August | 06:48 | 12:24 | 18:00 | 11 h 12 min | 48.2° |
| September | 06:11 | 12:14 | 18:16 | 12 h 05 min | 59.6° |
| October | 05:36 | 12:05 | 18:35 | 12 h 58 min | 71.0° |
| November | 05:14 | 12:07 | 18:59 | 13 h 45 min | 80.1° |
| December | 05:17 | 12:19 | 19:21 | 14 h 04 min | 83.6° |
A year of daylight in Osório
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 Osório
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
26°collects the most energy over a year: 1468 kWh per kWp.
55°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 | June kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1342 | 91% | 1.99 | 2.7× |
| 15° | 1446 | 98% | 2.56 | 2.0× |
| 26° year-round best | 1468 | 100% | 2.88 | 1.7× |
| 30° = latitude | 1465 | 100% | 2.97 | 1.6× |
| 45° | 1400 | 95% | 3.20 | 1.3× |
| 55° off-grid best | 1313 | 89% | 3.24 | 1.2× |
| 60° | 1256 | 86% | 3.23 | 1.3× |
| 70° | 1122 | 76% | 3.14 | 1.5× |
| 90° | 792 | 54% | 2.71 | 2.4× |
A fixed array in Osório produces the most over a year at 26°. The design month for an off-grid system is June: at 55° it makes 3.24 kWh per kWp a day, 13% more than at 26°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Osório at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 26° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 26° | Mean temp. |
|---|---|---|---|---|---|
| January | 6.40 | 3.11 | 2.54 | 4.79 | 23.5 °C |
| February | 5.89 | 3.65 | 2.99 | 4.73 | 23.7 °C |
| March | 4.99 | 4.10 | 3.39 | 4.41 | 22.6 °C |
| April | 3.94 | 4.32 | 3.61 | 3.93 | 20.2 °C |
| May | 2.93 | 3.89 | 3.30 | 3.20 | 16.9 °C |
| June | 2.49 | 3.67 | 3.14 | 2.88 | 14.8 °C |
| July | 2.71 | 3.93 | 3.37 | 3.13 | 13.8 °C |
| August | 3.39 | 4.07 | 3.47 | 3.58 | 14.9 °C |
| September | 4.01 | 3.66 | 3.10 | 3.76 | 16.2 °C |
| October | 5.02 | 3.48 | 2.91 | 4.24 | 18.4 °C |
| November | 6.21 | 3.20 | 2.65 | 4.81 | 20.0 °C |
| December | 6.60 | 2.96 | 2.42 | 4.86 | 22.0 °C |
| Year | 4.54 avg | 3.67 avg | 1122 kWh | 1468 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 490 Wp of panels at 70°, versus 410 Wp at 26°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Osório
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.
3.5 mrow pitch at 70°
3.1 mrow pitch at 26°
How Osório compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
2079thof 2,264 places in Brazil for sunshine, shared: 4.54 peak sun hours a day on flat ground.
−7%solar energy a year compared with the average place in Brazil: 1,468 against 1,581 kWh per kWp.
+29 mindaylight on the longest day, compared with São Paulo: 14 h 04 min against 13 h 35 min.
26°best year-round tilt here; across Brazil it runs from 0° in Macapá to 28° in Santa Vitória do Palmar.
Of the 2,264 places in Brazil, Catolé do Rocha gets the most sun (6.16 peak sun hours a day) and Paranaguá the least (4.01); Osório ranks joint 2079th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.42 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 13 min, −28 min compared with São Paulo.
Solar forecast for Osório, 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 Osório
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Places near Osório
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A free, live card for Osório: 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.