Maranhão · Brazil · 2.89° S · 41.90° W
Solar position in Araioses
Sun position, daylight and the best solar panel angle for Araioses — computed for 2.89° S, 41.90° W, 7 m above sea level.
The sun right now
Sun in Araioses today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:15 | sun 18° below horizon |
| Nautical dawn | 04:40 | 12° below |
| Civil dawn | 05:04 | 6° below |
| Sunrise | 05:26 | 102° ESE |
| Golden hour ends | 05:53 | sun 6° up |
| Solar noon | 11:31 | 81.0° high |
| Golden hour starts | 17:09 | sun 6° up |
| Sunset | 17:37 | 258° WSW |
| Civil dusk | 17:58 | 6° below |
| Nautical dusk | 18:23 | 12° below |
| Astronomical dusk | 18:48 | 18° below |
| Day length | 12 h 12 min | |
Sun path diagram for Araioses
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 63.7° at solar noon in Araioses; on the December solstice only 69.5°. 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 | 05:51 | 11:58 | 18:06 | 12 h 16 min | 73.1° |
| February | 05:55 | 12:01 | 18:06 | 12 h 11 min | 82.5° |
| March | 05:51 | 11:54 | 17:57 | 12 h 06 min | 86.7° |
| April | 05:45 | 11:46 | 17:47 | 12 h 02 min | 75.1° |
| May | 05:44 | 11:44 | 17:43 | 11 h 59 min | 66.8° |
| June | 05:50 | 11:49 | 17:48 | 11 h 57 min | 63.7° |
| July | 05:54 | 11:54 | 17:53 | 11 h 59 min | 66.7° |
| August | 05:49 | 11:50 | 17:51 | 12 h 02 min | 75.1° |
| September | 05:37 | 11:40 | 17:43 | 12 h 06 min | 86.6° |
| October | 05:26 | 11:32 | 17:37 | 12 h 11 min | 82.1° |
| November | 05:25 | 11:33 | 17:41 | 12 h 16 min | 72.9° |
| December | 05:36 | 11:45 | 17:54 | 12 h 18 min | 69.5° |
A year of daylight in Araioses
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 Araioses
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
4°collects the most energy over a year: 1666 kWh per kWp.
5°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 | April kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1662 | 100% | 4.00 | 1.3× |
| 3° = latitude | 1666 | 100% | 4.03 | 1.3× |
| 4° year-round best | 1666 | 100% | 4.04 | 1.3× |
| 5° off-grid best | 1666 | 100% | 4.05 | 1.3× |
| 15° | 1641 | 99% | 4.09 | 1.4× |
| 30° | 1526 | 92% | 3.97 | 1.7× |
| 45° | 1326 | 80% | 3.63 | 2.2× |
| 60° | 1062 | 64% | 3.10 | 3.5× |
| 70° | 879 | 53% | 2.66 | 4.1× |
| 90° | 582 | 35% | 1.61 | 3.1× |
A fixed array in Araioses produces the most over a year at 4°. The design month for an off-grid system is April: at 5° it makes 4.05 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Araioses at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 4° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 4° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.41 | 1.45 | 1.13 | 4.17 | 27.5 °C |
| February | 5.20 | 1.79 | 1.41 | 4.07 | 27.1 °C |
| March | 5.17 | 2.50 | 2.00 | 4.09 | 27.0 °C |
| April | 5.05 | 3.28 | 2.66 | 4.04 | 27.0 °C |
| May | 5.29 | 4.27 | 3.47 | 4.29 | 27.3 °C |
| June | 5.39 | 4.88 | 3.97 | 4.40 | 27.2 °C |
| July | 5.69 | 5.00 | 4.07 | 4.64 | 27.3 °C |
| August | 6.32 | 4.59 | 3.73 | 5.10 | 27.6 °C |
| September | 6.69 | 3.39 | 2.74 | 5.31 | 27.9 °C |
| October | 6.69 | 2.05 | 1.62 | 5.23 | 28.2 °C |
| November | 6.39 | 1.30 | 1.00 | 4.91 | 28.3 °C |
| December | 5.84 | 1.34 | 1.03 | 4.47 | 28.2 °C |
| Year | 5.76 avg | 2.99 avg | 879 kWh | 1666 kWh |
Sizing example. To run a 1 kWh-per-day load through November on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 1,180 Wp of panels at 70°, versus 290 Wp at 4°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Araioses
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.
1.7 mrow pitch at 70°
2.1 mrow pitch at 4°
How Araioses compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
288thof 2,264 places in Brazil for sunshine, shared: 5.76 peak sun hours a day on flat ground.
+5%solar energy a year compared with the average place in Brazil: 1,666 against 1,581 kWh per kWp.
−1 h 18 mindaylight on the longest day, compared with São Paulo: 12 h 18 min against 13 h 35 min.
4°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); Araioses ranks joint 288th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 1.00 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 11 h 57 min, +1 h 16 min compared with São Paulo.
Solar forecast for Araioses, 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 Araioses
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Places near Araioses
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A free, live card for Araioses: 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.