Rio de Janeiro · Brazil · 21.93° S · 42.61° W
Solar position in Carmo
Sun position, daylight and the best solar panel angle for Carmo — computed for 21.93° S, 42.61° W, 354 m above sea level.
The sun right now
Sun in Carmo today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 03:54 | sun 18° below horizon |
| Nautical dawn | 04:21 | 12° below |
| Civil dawn | 04:48 | 6° below |
| Sunrise | 05:11 | 103° ESE |
| Golden hour ends | 05:41 | sun 6° up |
| Solar noon | 11:34 | 80.0° high |
| Golden hour starts | 17:27 | sun 6° up |
| Sunset | 17:57 | 257° WSW |
| Civil dusk | 18:20 | 6° below |
| Nautical dusk | 18:47 | 12° below |
| Astronomical dusk | 19:15 | 18° below |
| Day length | 12 h 46 min | |
Sun path diagram for Carmo
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 44.6° at solar noon in Carmo; on the December solstice only 88.5°. Sunrise swings from 65° ENE in June to 116° ESE in December — a 51° 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 | 05:24 | 12:01 | 18:38 | 13 h 15 min | 87.9° |
| February | 05:43 | 12:03 | 18:24 | 12 h 41 min | 78.5° |
| March | 05:54 | 11:57 | 18:00 | 12 h 06 min | 67.7° |
| April | 06:04 | 11:48 | 17:32 | 11 h 28 min | 56.1° |
| May | 06:17 | 11:46 | 17:16 | 10 h 59 min | 47.8° |
| June | 06:28 | 11:52 | 17:16 | 10 h 48 min | 44.6° |
| July | 06:27 | 11:56 | 17:26 | 10 h 59 min | 47.7° |
| August | 06:09 | 11:53 | 17:37 | 11 h 28 min | 56.1° |
| September | 05:41 | 11:43 | 17:46 | 12 h 05 min | 67.5° |
| October | 05:13 | 11:35 | 17:56 | 12 h 43 min | 78.9° |
| November | 04:58 | 11:36 | 18:14 | 13 h 15 min | 88.1° |
| December | 05:04 | 11:48 | 18:32 | 13 h 29 min | 88.5° |
A year of daylight in Carmo
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 Carmo
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
22°collects the most energy over a year: 1488 kWh per kWp.
25°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° | 1398 | 94% | 2.80 | 1.7× |
| 15° | 1479 | 99% | 3.44 | 1.4× |
| 22° year-round best = latitude | 1488 | 100% | 3.66 | 1.3× |
| 25° off-grid best | 1486 | 100% | 3.74 | 1.2× |
| 30° | 1476 | 99% | 3.86 | 1.2× |
| 45° | 1390 | 93% | 4.04 | 1.4× |
| 60° | 1227 | 82% | 3.98 | 1.7× |
| 70° | 1083 | 73% | 3.80 | 2.1× |
| 90° | 756 | 51% | 3.15 | 2.8× |
A fixed array in Carmo produces the most over a year at 22°. The design month for an off-grid system is June: at 25° it makes 3.74 kWh per kWp a day, 2% more than at 22°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Carmo at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 22° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 22° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.90 | 2.51 | 2.03 | 4.36 | 24.1 °C |
| February | 6.00 | 3.15 | 2.57 | 4.67 | 24.0 °C |
| March | 5.23 | 3.67 | 3.02 | 4.38 | 23.4 °C |
| April | 4.53 | 4.22 | 3.51 | 4.16 | 22.0 °C |
| May | 3.72 | 4.23 | 3.55 | 3.69 | 19.6 °C |
| June | 3.50 | 4.52 | 3.80 | 3.66 | 19.0 °C |
| July | 3.69 | 4.65 | 3.92 | 3.84 | 18.7 °C |
| August | 4.30 | 4.52 | 3.78 | 4.17 | 19.8 °C |
| September | 4.68 | 3.70 | 3.07 | 4.10 | 21.5 °C |
| October | 5.05 | 3.02 | 2.48 | 4.05 | 22.9 °C |
| November | 5.02 | 2.44 | 1.99 | 3.80 | 22.7 °C |
| December | 5.60 | 2.29 | 1.85 | 4.09 | 23.6 °C |
| Year | 4.76 avg | 3.58 avg | 1083 kWh | 1488 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 640 Wp of panels at 70°, versus 320 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Carmo
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.
2.8 mrow pitch at 70°
2.7 mrow pitch at 22°
How Carmo compares in Brazil
Against the other 2,263 places in Brazil with climate data, for a fixed array at its best angle.
1851stof 2,264 places in Brazil for sunshine, shared: 4.76 peak sun hours a day on flat ground.
−6%solar energy a year compared with the average place in Brazil: 1,488 against 1,581 kWh per kWp.
−7 mindaylight on the longest day, compared with São Paulo: 13 h 29 min against 13 h 35 min.
22°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); Carmo ranks joint 1851st. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.85 kWh a day here, against 1.56 kWh on average in Brazil. The shortest day lasts 10 h 48 min, +7 min compared with São Paulo.
Solar forecast for Carmo, 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 Carmo
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Places near Carmo
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A free, live card for Carmo: 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.