East Kalimantan · Indonesia · 0.49° S · 117.15° E
Solar position in Samarinda
Sun position, daylight and the best solar panel angle for Samarinda — computed for 0.49° S, 117.15° E, 24 m above sea level.
The sun right now
Sun in Samarinda today
Sunday, 25 October 2026 · local time UTC+8
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:41 | sun 18° below horizon |
| Nautical dawn | 05:06 | 12° below |
| Civil dawn | 05:30 | 6° below |
| Sunrise | 05:51 | 102° ESE |
| Golden hour ends | 06:19 | sun 6° up |
| Solar noon | 11:55 | 78.4° high |
| Golden hour starts | 17:31 | sun 6° up |
| Sunset | 17:59 | 258° WSW |
| Civil dusk | 18:20 | 6° below |
| Nautical dusk | 18:45 | 12° below |
| Astronomical dusk | 19:09 | 18° below |
| Day length | 12 h 08 min | |
Sun path diagram for Samarinda
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 66.1° at solar noon in Samarinda; on the December solstice only 67.1°. Sunrise swings from 67° ENE in June to 113° 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 | 06:18 | 12:22 | 18:26 | 12 h 09 min | 70.6° |
| February | 06:21 | 12:25 | 18:28 | 12 h 07 min | 79.9° |
| March | 06:15 | 12:18 | 18:21 | 12 h 06 min | 89.3° |
| April | 06:07 | 12:10 | 18:13 | 12 h 06 min | 77.7° |
| May | 06:05 | 12:07 | 18:10 | 12 h 06 min | 69.3° |
| June | 06:10 | 12:13 | 18:15 | 12 h 06 min | 66.1° |
| July | 06:15 | 12:17 | 18:20 | 12 h 06 min | 69.0° |
| August | 06:11 | 12:14 | 18:17 | 12 h 06 min | 77.4° |
| September | 06:01 | 12:04 | 18:07 | 12 h 06 min | 88.8° |
| October | 05:52 | 11:56 | 17:59 | 12 h 07 min | 79.8° |
| November | 05:52 | 11:57 | 18:01 | 12 h 09 min | 70.6° |
| December | 06:04 | 12:09 | 18:13 | 12 h 09 min | 67.1° |
A year of daylight in Samarinda
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 Samarinda
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
2°collects the most energy over a year: 1370 kWh per kWp.
3°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° = latitude | 1369 | 100% | 3.45 | 1.2× |
| 2° year-round best | 1370 | 100% | 3.49 | 1.1× |
| 3° off-grid best | 1370 | 100% | 3.51 | 1.1× |
| 15° | 1343 | 98% | 3.69 | 1.3× |
| 30° | 1248 | 91% | 3.74 | 1.5× |
| 45° | 1088 | 79% | 3.58 | 1.8× |
| 60° | 880 | 64% | 3.23 | 2.4× |
| 70° | 741 | 54% | 2.90 | 2.5× |
| 90° | 507 | 37% | 2.06 | 2.0× |
A fixed array in Samarinda produces the most over a year at 2°. The design month for an off-grid system is June: at 3° it makes 3.51 kWh per kWp a day, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Samarinda at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 2° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 2° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.52 | 1.55 | 1.21 | 3.54 | 26.6 °C |
| February | 5.03 | 1.72 | 1.36 | 3.96 | 26.6 °C |
| March | 5.02 | 2.34 | 1.87 | 3.98 | 26.9 °C |
| April | 4.91 | 3.06 | 2.47 | 3.91 | 27.2 °C |
| May | 4.68 | 3.53 | 2.86 | 3.73 | 27.3 °C |
| June | 4.37 | 3.57 | 2.90 | 3.49 | 26.7 °C |
| July | 4.55 | 3.61 | 2.94 | 3.65 | 26.3 °C |
| August | 4.89 | 3.34 | 2.71 | 3.91 | 26.4 °C |
| September | 4.99 | 2.64 | 2.12 | 3.97 | 26.8 °C |
| October | 4.81 | 1.90 | 1.50 | 3.79 | 27.1 °C |
| November | 4.61 | 1.50 | 1.17 | 3.61 | 27.2 °C |
| December | 4.51 | 1.55 | 1.22 | 3.52 | 26.9 °C |
| Year | 4.74 avg | 2.53 avg | 741 kWh | 1370 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 1,010 Wp of panels at 70°, versus 340 Wp at 2°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Samarinda
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.
1.6 mrow pitch at 70°
2.0 mrow pitch at 2°
How Samarinda compares in Indonesia
Against the other 446 places in Indonesia with climate data, for a fixed array at its best angle.
398thof 447 places in Indonesia for sunshine, shared: 4.74 peak sun hours a day on flat ground.
−9%solar energy a year compared with the average place in Indonesia: 1,370 against 1,498 kWh per kWp.
−20 mindaylight on the longest day, compared with Jakarta: 12 h 09 min against 12 h 29 min.
2°best year-round tilt here; across Indonesia it runs from 0° in Batam to 12° in Kupang.
Of the 447 places in Indonesia, Lewoleba gets the most sun (5.95 peak sun hours a day) and Kuala Tungkal the least (4.48); Samarinda ranks joint 398th. In its darkest month, November, 1 kWp of off-grid panels at 70° makes 1.17 kWh a day here, against 1.26 kWh on average in Indonesia. The shortest day lasts 12 h 06 min, +20 min compared with Jakarta.
Solar forecast for Samarinda, 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 Samarinda
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Places near Samarinda
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A free, live card for Samarinda: 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.