Rio Grande do Sul · Brazil · 29.13° S · 56.55° W
Solar position in Itaqui
Sun position, daylight and the best solar panel angle for Itaqui — computed for 29.13° S, 56.55° W, 61 m above sea level.
The sun right now
Sun in Itaqui today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:36 | sun 18° below horizon |
| Nautical dawn | 05:06 | 12° below |
| Civil dawn | 05:35 | 6° below |
| Sunrise | 05:59 | 104° ESE |
| Golden hour ends | 06:31 | sun 6° up |
| Solar noon | 12:30 | 72.8° high |
| Golden hour starts | 18:29 | sun 6° up |
| Sunset | 19:01 | 256° WSW |
| Civil dusk | 19:26 | 6° below |
| Nautical dusk | 19:55 | 12° below |
| Astronomical dusk | 20:25 | 18° below |
| Day length | 13 h 02 min | |
Sun path diagram for Itaqui
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 37.5° at solar noon in Itaqui; on the December solstice only 84.3°. Sunrise swings from 63° ENE in June to 118° ESE in December — a 54° 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 | 06:06 | 12:57 | 19:47 | 13 h 41 min | 80.7° |
| February | 06:32 | 12:59 | 19:26 | 12 h 55 min | 71.3° |
| March | 06:50 | 12:53 | 18:55 | 12 h 06 min | 60.5° |
| April | 07:08 | 12:44 | 18:21 | 11 h 13 min | 48.9° |
| May | 07:26 | 12:42 | 17:59 | 10 h 33 min | 40.6° |
| June | 07:39 | 12:48 | 17:56 | 10 h 17 min | 37.5° |
| July | 07:36 | 12:52 | 18:09 | 10 h 33 min | 40.5° |
| August | 07:12 | 12:49 | 18:26 | 11 h 14 min | 48.9° |
| September | 06:36 | 12:39 | 18:42 | 12 h 05 min | 60.4° |
| October | 06:02 | 12:30 | 18:59 | 12 h 57 min | 71.7° |
| November | 05:41 | 12:32 | 19:23 | 13 h 42 min | 80.9° |
| December | 05:44 | 12:44 | 19:44 | 14 h 01 min | 84.3° |
A year of daylight in Itaqui
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 Itaqui
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
25°collects the most energy over a year: 1556 kWh per kWp.
54°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° | 1426 | 92% | 2.06 | 2.7× |
| 15° | 1534 | 99% | 2.64 | 2.0× |
| 25° year-round best | 1556 | 100% | 2.94 | 1.7× |
| 29° = latitude | 1554 | 100% | 3.03 | 1.6× |
| 30° | 1552 | 100% | 3.06 | 1.6× |
| 45° | 1478 | 95% | 3.28 | 1.4× |
| 54° off-grid best | 1393 | 90% | 3.32 | 1.3× |
| 60° | 1320 | 85% | 3.31 | 1.3× |
| 70° | 1173 | 75% | 3.21 | 1.6× |
| 90° | 817 | 52% | 2.76 | 2.8× |
A fixed array in Itaqui produces the most over a year at 25°. The design month for an off-grid system is June: at 54° it makes 3.32 kWh per kWp a day, 13% more than at 25°, and costs 10% of the yearly total. Why steep panels win winter.
Off-grid solar in Itaqui at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 25° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 25° | Mean temp. |
|---|---|---|---|---|---|
| January | 6.84 | 3.13 | 2.52 | 5.02 | 26.9 °C |
| February | 6.26 | 3.76 | 3.06 | 4.97 | 26.2 °C |
| March | 5.40 | 4.39 | 3.61 | 4.75 | 24.1 °C |
| April | 4.15 | 4.58 | 3.83 | 4.14 | 20.6 °C |
| May | 3.07 | 4.12 | 3.50 | 3.37 | 16.3 °C |
| June | 2.57 | 3.75 | 3.21 | 2.94 | 14.1 °C |
| July | 2.91 | 4.20 | 3.61 | 3.34 | 13.2 °C |
| August | 3.66 | 4.42 | 3.78 | 3.87 | 15.0 °C |
| September | 4.43 | 4.04 | 3.42 | 4.15 | 17.2 °C |
| October | 5.40 | 3.65 | 3.04 | 4.54 | 20.4 °C |
| November | 6.64 | 3.23 | 2.65 | 5.05 | 22.8 °C |
| December | 7.01 | 2.91 | 2.35 | 5.05 | 25.6 °C |
| Year | 4.85 avg | 3.85 avg | 1173 kWh | 1556 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 500 Wp of panels at 70°, versus 400 Wp at 25°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Itaqui
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.
3.4 mrow pitch at 70°
3.1 mrow pitch at 25°
How Itaqui compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
1710thof 2,264 places in Brazil for sunshine, shared: 4.86 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Brazil: 1,556 against 1,581 kWh per kWp.
+25 mindaylight on the longest day, compared with São Paulo: 14 h 01 min against 13 h 35 min.
25°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); Itaqui ranks joint 1710th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.35 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 17 min, −24 min compared with São Paulo.
Solar forecast for Itaqui, 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 Itaqui
What is the best solar panel angle in Itaqui?
What time is sunrise and sunset in Itaqui today?
How many peak sun hours does Itaqui get?
How high does the sun get in Itaqui?
Is Itaqui a good place for solar panels?
Places near Itaqui
Put this on your site
A free, live card for Itaqui: 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.