Rio Grande do Sul · Brazil · 31.45° S · 53.10° W
Solar position in Piratini
Sun position, daylight and the best solar panel angle for Piratini — computed for 31.45° S, 53.10° W, 361 m above sea level.
The sun right now
Sun in Piratini today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:17 | sun 18° below horizon |
| Nautical dawn | 04:48 | 12° below |
| Civil dawn | 05:18 | 6° below |
| Sunrise | 05:43 | 104° ESE |
| Golden hour ends | 06:16 | sun 6° up |
| Solar noon | 12:16 | 70.5° high |
| Golden hour starts | 18:17 | sun 6° up |
| Sunset | 18:50 | 255° WSW |
| Civil dusk | 19:15 | 6° below |
| Nautical dusk | 19:45 | 12° below |
| Astronomical dusk | 20:16 | 18° below |
| Day length | 13 h 07 min | |
Sun path diagram for Piratini
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 35.1° at solar noon in Piratini; on the December solstice only 82.0°. Sunrise swings from 63° ENE in June to 118° ESE in December — a 56° 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 | 05:48 | 12:43 | 19:38 | 13 h 50 min | 78.4° |
| February | 06:15 | 12:45 | 19:15 | 12 h 59 min | 69.0° |
| March | 06:36 | 12:39 | 18:42 | 12 h 06 min | 58.2° |
| April | 06:56 | 12:30 | 18:04 | 11 h 08 min | 46.6° |
| May | 07:16 | 12:28 | 17:40 | 10 h 24 min | 38.3° |
| June | 07:31 | 12:34 | 17:37 | 10 h 06 min | 35.1° |
| July | 07:27 | 12:39 | 17:50 | 10 h 23 min | 38.2° |
| August | 07:01 | 12:35 | 18:09 | 11 h 08 min | 46.6° |
| September | 06:23 | 12:25 | 18:28 | 12 h 05 min | 58.0° |
| October | 05:46 | 12:17 | 18:48 | 13 h 02 min | 69.4° |
| November | 05:22 | 12:18 | 19:14 | 13 h 52 min | 78.6° |
| December | 05:24 | 12:30 | 19:36 | 14 h 12 min | 82.0° |
A year of daylight in Piratini
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 Piratini
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
27°collects the most energy over a year: 1498 kWh per kWp.
56°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° | 1357 | 91% | 1.91 | 2.9× |
| 15° | 1469 | 98% | 2.50 | 2.2× |
| 27° year-round best | 1498 | 100% | 2.86 | 1.8× |
| 30° | 1496 | 100% | 2.93 | 1.7× |
| 31° = latitude | 1494 | 100% | 2.95 | 1.7× |
| 45° | 1436 | 96% | 3.18 | 1.4× |
| 56° off-grid best | 1339 | 89% | 3.24 | 1.3× |
| 60° | 1294 | 86% | 3.23 | 1.2× |
| 70° | 1159 | 77% | 3.16 | 1.5× |
| 90° | 824 | 55% | 2.75 | 2.3× |
A fixed array in Piratini produces the most over a year at 27°. The design month for an off-grid system is June: at 56° it makes 3.24 kWh per kWp a day, 13% more than at 27°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Piratini at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 27° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 27° | Mean temp. |
|---|---|---|---|---|---|
| January | 6.62 | 3.29 | 2.69 | 4.95 | 23.6 °C |
| February | 5.96 | 3.81 | 3.13 | 4.82 | 23.4 °C |
| March | 5.02 | 4.24 | 3.52 | 4.50 | 21.7 °C |
| April | 3.90 | 4.44 | 3.74 | 4.00 | 18.5 °C |
| May | 2.81 | 3.84 | 3.28 | 3.16 | 14.6 °C |
| June | 2.38 | 3.66 | 3.16 | 2.86 | 12.2 °C |
| July | 2.62 | 3.91 | 3.39 | 3.12 | 11.3 °C |
| August | 3.27 | 4.05 | 3.49 | 3.55 | 12.9 °C |
| September | 4.02 | 3.78 | 3.23 | 3.85 | 14.4 °C |
| October | 5.14 | 3.65 | 3.08 | 4.41 | 17.0 °C |
| November | 6.44 | 3.41 | 2.84 | 5.01 | 19.3 °C |
| December | 6.88 | 3.13 | 2.57 | 5.06 | 21.9 °C |
| Year | 4.58 avg | 3.77 avg | 1159 kWh | 1498 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 460 Wp of panels at 70°, versus 410 Wp at 27°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Piratini
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.
3.7 mrow pitch at 70°
3.2 mrow pitch at 27°
How Piratini compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
2036thof 2,264 places in Brazil for sunshine, shared: 4.58 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in Brazil: 1,498 against 1,581 kWh per kWp.
+37 mindaylight on the longest day, compared with São Paulo: 14 h 12 min against 13 h 35 min.
27°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); Piratini ranks joint 2036th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.57 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 06 min, −35 min compared with São Paulo.
Solar forecast for Piratini, next 48 hours
Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.
Loading the latest forecast…
Questions about the sun in Piratini
What is the best solar panel angle in Piratini?
What time is sunrise and sunset in Piratini today?
How many peak sun hours does Piratini get?
How high does the sun get in Piratini?
Is Piratini a good place for solar panels?
Places near Piratini
Put this on your site
A free, live card for Piratini: 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.