Diana · Madagascar · 12.32° S · 49.29° E
Solar position in Antsiranana
Sun position, daylight and the best solar panel angle for Antsiranana — computed for 12.32° S, 49.29° E, 60 m above sea level.
The sun right now
Sun in Antsiranana today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:00 | sun 18° below horizon |
| Nautical dawn | 04:26 | 12° below |
| Civil dawn | 04:51 | 6° below |
| Sunrise | 05:13 | 102° ESE |
| Golden hour ends | 05:41 | sun 6° up |
| Solar noon | 11:27 | 89.5° high |
| Golden hour starts | 17:12 | sun 6° up |
| Sunset | 17:41 | 258° WSW |
| Civil dusk | 18:02 | 6° below |
| Nautical dusk | 18:28 | 12° below |
| Astronomical dusk | 18:53 | 18° below |
| Day length | 12 h 28 min | |
Sun path diagram for Antsiranana
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 54.3° at solar noon in Antsiranana; on the December solstice only 78.9°. Sunrise swings from 66° ENE in June to 114° ESE in December — a 48° 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 | 05:32 | 11:54 | 18:15 | 12 h 44 min | 82.5° |
| February | 05:43 | 11:56 | 18:09 | 12 h 25 min | 88.2° |
| March | 05:46 | 11:49 | 17:52 | 12 h 06 min | 77.4° |
| April | 05:48 | 11:41 | 17:34 | 11 h 46 min | 65.8° |
| May | 05:54 | 11:39 | 17:24 | 11 h 30 min | 57.5° |
| June | 06:02 | 11:44 | 17:26 | 11 h 24 min | 54.3° |
| July | 06:04 | 11:49 | 17:34 | 11 h 30 min | 57.3° |
| August | 05:53 | 11:46 | 17:38 | 11 h 45 min | 65.6° |
| September | 05:33 | 11:36 | 17:38 | 12 h 06 min | 77.0° |
| October | 05:14 | 11:27 | 17:40 | 12 h 26 min | 88.4° |
| November | 05:06 | 11:28 | 17:50 | 12 h 44 min | 82.4° |
| December | 05:15 | 11:40 | 18:06 | 12 h 51 min | 78.9° |
A year of daylight in Antsiranana
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 Antsiranana
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
13°collects the most energy over a year: 1700 kWh per kWp.
12°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° | 1663 | 98% | 4.47 | 1.5× |
| 12° off-grid best = latitude | 1699 | 100% | 4.22 | 1.3× |
| 13° year-round best | 1700 | 100% | 4.19 | 1.3× |
| 15° | 1699 | 100% | 4.13 | 1.3× |
| 30° | 1635 | 96% | 3.57 | 1.4× |
| 45° | 1478 | 87% | 2.82 | 1.7× |
| 60° | 1240 | 73% | 1.97 | 2.4× |
| 70° | 1050 | 62% | 1.42 | 3.3× |
| 90° | 698 | 41% | 1.05 | 3.4× |
A fixed array in Antsiranana produces the most over a year at 13°. The design month for an off-grid system is January: at 12° it makes 4.22 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Antsiranana at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 13° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 13° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.63 | 1.80 | 1.42 | 4.19 | 26.9 °C |
| February | 5.66 | 2.37 | 1.89 | 4.36 | 26.8 °C |
| March | 5.72 | 3.26 | 2.64 | 4.58 | 26.8 °C |
| April | 5.61 | 4.41 | 3.59 | 4.74 | 26.7 °C |
| May | 5.09 | 5.02 | 4.10 | 4.51 | 25.9 °C |
| June | 4.68 | 5.09 | 4.19 | 4.25 | 24.5 °C |
| July | 4.85 | 5.06 | 4.18 | 4.38 | 23.7 °C |
| August | 5.45 | 4.76 | 3.93 | 4.76 | 23.7 °C |
| September | 6.29 | 4.09 | 3.36 | 5.21 | 24.3 °C |
| October | 6.76 | 2.93 | 2.38 | 5.30 | 25.4 °C |
| November | 6.71 | 1.94 | 1.54 | 5.01 | 26.4 °C |
| December | 6.27 | 1.60 | 1.25 | 4.58 | 27.1 °C |
| Year | 5.73 avg | 3.53 avg | 1050 kWh | 1700 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 940 Wp of panels at 70°, versus 280 Wp at 13°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Antsiranana
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.
2.2 mrow pitch at 70°
2.3 mrow pitch at 13°
How Antsiranana compares in Madagascar
Against the other 105 places in Madagascar with climate data, for a fixed array at its best angle.
42ndof 106 places in Madagascar for sunshine, shared: 5.73 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Madagascar: 1,700 against 1,713 kWh per kWp.
−25 mindaylight on the longest day, compared with Antananarivo: 12 h 51 min against 13 h 16 min.
13°best year-round tilt here; across Madagascar it runs from 13° in Antsiranana to 25° in Ampanihy.
Of the 106 places in Madagascar, Beroroha and one other place get the most sun (6.17 peak sun hours a day) and Soanierana Ivongo the least (4.90); Antsiranana ranks joint 42nd. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.25 kWh a day here, against 1.78 kWh on average in Madagascar. The shortest day lasts 11 h 24 min, +25 min compared with Antananarivo.
Solar forecast for Antsiranana, 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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Places near Antsiranana
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A free, live card for Antsiranana: 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.