Maranhão · Brazil · 5.78° S · 43.25° W
Solar position in Estreito
Sun position, daylight and the best solar panel angle for Estreito — computed for 5.78° S, 43.25° W, 199 m above sea level.
The sun right now
Sun in Estreito today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:18 | sun 18° below horizon |
| Nautical dawn | 04:42 | 12° below |
| Civil dawn | 05:07 | 6° below |
| Sunrise | 05:28 | 102° ESE |
| Golden hour ends | 05:56 | sun 6° up |
| Solar noon | 11:37 | 83.9° high |
| Golden hour starts | 17:17 | sun 6° up |
| Sunset | 17:45 | 258° WSW |
| Civil dusk | 18:06 | 6° below |
| Nautical dusk | 18:31 | 12° below |
| Astronomical dusk | 18:56 | 18° below |
| Day length | 12 h 17 min | |
Sun path diagram for Estreito
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 60.8° at solar noon in Estreito; on the December solstice only 72.4°. Sunrise swings from 67° ENE in June to 114° ESE in December — a 47° 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 | 05:52 | 12:04 | 18:16 | 12 h 24 min | 76.0° |
| February | 05:58 | 12:06 | 18:14 | 12 h 15 min | 85.4° |
| March | 05:56 | 12:00 | 18:03 | 12 h 06 min | 83.8° |
| April | 05:53 | 11:51 | 17:50 | 11 h 57 min | 72.2° |
| May | 05:54 | 11:49 | 17:44 | 11 h 50 min | 64.0° |
| June | 06:01 | 11:54 | 17:48 | 11 h 47 min | 60.8° |
| July | 06:04 | 11:59 | 17:54 | 11 h 50 min | 63.8° |
| August | 05:57 | 11:56 | 17:54 | 11 h 57 min | 72.3° |
| September | 05:43 | 11:46 | 17:49 | 12 h 06 min | 83.7° |
| October | 05:29 | 11:37 | 17:45 | 12 h 16 min | 84.9° |
| November | 05:26 | 11:38 | 17:50 | 12 h 24 min | 75.8° |
| December | 05:37 | 11:51 | 18:04 | 12 h 28 min | 72.4° |
A year of daylight in Estreito
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 Estreito
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
9°collects the most energy over a year: 1661 kWh per kWp.
0°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 | January kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° off-grid best | 1642 | 99% | 4.10 | 1.3× |
| 6° = latitude | 1658 | 100% | 3.97 | 1.3× |
| 9° year-round best | 1661 | 100% | 3.90 | 1.4× |
| 15° | 1654 | 100% | 3.72 | 1.5× |
| 30° | 1571 | 95% | 3.14 | 1.8× |
| 45° | 1399 | 84% | 2.41 | 2.3× |
| 60° | 1153 | 69% | 1.62 | 3.4× |
| 70° | 967 | 58% | 1.19 | 4.1× |
| 90° | 644 | 39% | 1.05 | 3.5× |
A fixed array in Estreito produces the most over a year at 9°. The design month for an off-grid system is January: at 0° it makes 4.10 kWh per kWp a day, 5% more than at 9°, and costs 1% of the yearly total. Why steep panels win winter.
Off-grid solar in Estreito at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 9° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 9° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.17 | 1.52 | 1.19 | 3.90 | 26.8 °C |
| February | 5.25 | 2.00 | 1.59 | 4.07 | 25.9 °C |
| March | 5.29 | 2.73 | 2.21 | 4.21 | 25.8 °C |
| April | 5.25 | 3.60 | 2.94 | 4.30 | 25.9 °C |
| May | 5.31 | 4.56 | 3.72 | 4.47 | 26.6 °C |
| June | 5.54 | 5.47 | 4.46 | 4.76 | 27.2 °C |
| July | 5.87 | 5.62 | 4.56 | 5.01 | 27.8 °C |
| August | 6.47 | 5.06 | 4.09 | 5.36 | 28.9 °C |
| September | 6.72 | 3.66 | 2.93 | 5.32 | 30.4 °C |
| October | 6.36 | 2.26 | 1.78 | 4.85 | 31.0 °C |
| November | 5.80 | 1.52 | 1.17 | 4.32 | 30.1 °C |
| December | 5.41 | 1.43 | 1.11 | 4.01 | 28.7 °C |
| Year | 5.71 avg | 3.29 avg | 967 kWh | 1661 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 1,070 Wp of panels at 70°, versus 300 Wp at 9°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Estreito
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.
1.9 mrow pitch at 70°
2.2 mrow pitch at 9°
How Estreito compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
392ndof 2,264 places in Brazil for sunshine, shared: 5.71 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Brazil: 1,661 against 1,581 kWh per kWp.
−1 h 08 mindaylight on the longest day, compared with São Paulo: 12 h 28 min against 13 h 35 min.
9°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); Estreito ranks joint 392nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.11 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 47 min, +1 h 06 min compared with São Paulo.
Solar forecast for Estreito, 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 Estreito
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Places near Estreito
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A free, live card for Estreito: 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.