East Sepik Province · Papua New Guinea · 3.55° S · 143.63° E
Solar position in Wewak
Sun position, daylight and the best solar panel angle for Wewak — computed for 3.55° S, 143.63° E, 44 m above sea level.
The sun right now
Sun in Wewak today
Sunday, 25 October 2026 · local time UTC+10
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:52 | sun 18° below horizon |
| Nautical dawn | 05:17 | 12° below |
| Civil dawn | 05:42 | 6° below |
| Sunrise | 06:03 | 102° ESE |
| Golden hour ends | 06:31 | sun 6° up |
| Solar noon | 12:09 | 81.5° high |
| Golden hour starts | 17:48 | sun 6° up |
| Sunset | 18:16 | 258° WSW |
| Civil dusk | 18:37 | 6° below |
| Nautical dusk | 19:01 | 12° below |
| Astronomical dusk | 19:26 | 18° below |
| Day length | 12 h 13 min | |
Sun path diagram for Wewak
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 63.0° at solar noon in Wewak; on the December solstice only 70.1°. 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 | 06:27 | 12:36 | 18:45 | 12 h 18 min | 73.6° |
| February | 06:33 | 12:39 | 18:45 | 12 h 12 min | 83.0° |
| March | 06:29 | 12:32 | 18:35 | 12 h 06 min | 86.3° |
| April | 06:23 | 12:24 | 18:24 | 12 h 01 min | 74.6° |
| May | 06:23 | 12:21 | 18:20 | 11 h 57 min | 66.3° |
| June | 06:29 | 12:27 | 18:24 | 11 h 55 min | 63.0° |
| July | 06:33 | 12:31 | 18:30 | 11 h 57 min | 66.0° |
| August | 06:28 | 12:28 | 18:29 | 12 h 01 min | 74.3° |
| September | 06:15 | 12:18 | 18:21 | 12 h 06 min | 85.7° |
| October | 06:04 | 12:10 | 18:16 | 12 h 12 min | 82.9° |
| November | 06:02 | 12:11 | 18:19 | 12 h 17 min | 73.7° |
| December | 06:13 | 12:23 | 18:33 | 12 h 20 min | 70.1° |
A year of daylight in Wewak
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 Wewak
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: 1386 kWh per kWp.
6°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° | 1383 | 100% | 3.44 | 1.2× |
| 4° year-round best = latitude | 1386 | 100% | 3.54 | 1.2× |
| 6° off-grid best | 1385 | 100% | 3.58 | 1.1× |
| 15° | 1367 | 99% | 3.74 | 1.2× |
| 30° | 1278 | 92% | 3.84 | 1.4× |
| 45° | 1122 | 81% | 3.73 | 1.8× |
| 60° | 914 | 66% | 3.41 | 2.5× |
| 70° | 767 | 55% | 3.09 | 2.7× |
| 90° | 524 | 38% | 2.24 | 2.2× |
A fixed array in Wewak produces the most over a year at 4°. The design month for an off-grid system is June: at 6° it makes 3.58 kWh per kWp a day, 1% more than at 4°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Wewak 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 | 4.86 | 1.51 | 1.18 | 3.77 | 27.1 °C |
| February | 4.94 | 1.84 | 1.45 | 3.87 | 26.9 °C |
| March | 4.83 | 2.44 | 1.95 | 3.82 | 26.9 °C |
| April | 4.74 | 3.12 | 2.52 | 3.80 | 27.0 °C |
| May | 4.54 | 3.62 | 2.93 | 3.67 | 27.1 °C |
| June | 4.36 | 3.80 | 3.09 | 3.54 | 26.9 °C |
| July | 4.37 | 3.67 | 2.98 | 3.55 | 26.6 °C |
| August | 4.90 | 3.55 | 2.88 | 3.96 | 26.7 °C |
| September | 5.09 | 2.82 | 2.27 | 4.06 | 26.8 °C |
| October | 5.25 | 2.04 | 1.62 | 4.13 | 27.1 °C |
| November | 4.85 | 1.49 | 1.16 | 3.76 | 27.2 °C |
| December | 4.73 | 1.45 | 1.13 | 3.65 | 27.2 °C |
| Year | 4.79 avg | 2.62 avg | 767 kWh | 1386 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 1,050 Wp of panels at 70°, versus 330 Wp at 4°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Wewak
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.
1.8 mrow pitch at 70°
2.1 mrow pitch at 4°
How Wewak compares in Papua New Guinea
Against the other 12 places in Papua New Guinea with climate data, for a fixed array at its best angle.
8thof 13 places in Papua New Guinea for sunshine, shared: 4.79 peak sun hours a day on flat ground.
−2%solar energy a year compared with the average place in Papua New Guinea: 1,386 against 1,414 kWh per kWp.
−21 mindaylight on the longest day, compared with Port Moresby: 12 h 20 min against 12 h 41 min.
4°best year-round tilt here; across Papua New Guinea it runs from 4° in Kokopo to 8° in Port Moresby.
Of the 13 places in Papua New Guinea, Port Moresby gets the most sun (5.24 peak sun hours a day) and Lae the least (4.59); Wewak ranks joint 8th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.13 kWh a day here, against 1.22 kWh on average in Papua New Guinea. The shortest day lasts 11 h 55 min, +21 min compared with Port Moresby.
Solar forecast for Wewak, 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 Wewak
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A free, live card for Wewak: 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.