Pwani · Tanzania · 7.96° S · 38.97° E
Solar position in Ikwiriri
Sun position, daylight and the best solar panel angle for Ikwiriri — computed for 7.96° S, 38.97° E, 30 m above sea level.
The sun right now
Sun in Ikwiriri today
Saturday, 24 October 2026 · local time UTC+3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:47 | sun 18° below horizon |
| Nautical dawn | 05:12 | 12° below |
| Civil dawn | 05:36 | 6° below |
| Sunrise | 05:58 | 102° ESE |
| Golden hour ends | 06:26 | sun 6° up |
| Solar noon | 12:08 | 86.1° high |
| Golden hour starts | 17:50 | sun 6° up |
| Sunset | 18:18 | 258° WSW |
| Civil dusk | 18:39 | 6° below |
| Nautical dusk | 19:04 | 12° below |
| Astronomical dusk | 19:29 | 18° below |
| Day length | 12 h 20 min | |
Sun path diagram for Ikwiriri
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 58.6° at solar noon in Ikwiriri; on the December solstice only 74.5°. Sunrise swings from 66° 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 | 06:20 | 12:35 | 18:50 | 12 h 30 min | 78.1° |
| February | 06:28 | 12:37 | 18:46 | 12 h 19 min | 87.5° |
| March | 06:28 | 12:31 | 18:34 | 12 h 06 min | 81.7° |
| April | 06:26 | 12:22 | 18:19 | 11 h 53 min | 70.1° |
| May | 06:28 | 12:20 | 18:12 | 11 h 44 min | 61.8° |
| June | 06:36 | 12:25 | 18:15 | 11 h 40 min | 58.6° |
| July | 06:38 | 12:30 | 18:22 | 11 h 43 min | 61.6° |
| August | 06:30 | 12:27 | 18:23 | 11 h 53 min | 70.0° |
| September | 06:14 | 12:17 | 18:20 | 12 h 06 min | 81.4° |
| October | 05:59 | 12:08 | 18:18 | 12 h 19 min | 87.2° |
| November | 05:54 | 12:09 | 18:25 | 12 h 31 min | 78.0° |
| December | 06:04 | 12:22 | 18:39 | 12 h 35 min | 74.5° |
A year of daylight in Ikwiriri
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 Ikwiriri
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
8°collects the most energy over a year: 1591 kWh per kWp.
14°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° | 1578 | 99% | 3.96 | 1.2× |
| 8° year-round best = latitude | 1591 | 100% | 4.08 | 1.1× |
| 14° off-grid best | 1585 | 100% | 4.13 | 1.1× |
| 15° | 1582 | 99% | 4.14 | 1.1× |
| 30° | 1498 | 94% | 4.08 | 1.4× |
| 45° | 1332 | 84% | 3.81 | 1.8× |
| 60° | 1098 | 69% | 3.32 | 2.7× |
| 70° | 920 | 58% | 2.89 | 3.5× |
| 90° | 622 | 39% | 1.84 | 2.9× |
A fixed array in Ikwiriri produces the most over a year at 8°. The design month for an off-grid system is April: at 14° it makes 4.13 kWh per kWp a day, 1% more than at 8°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Ikwiriri at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 8° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 8° | Mean temp. |
|---|---|---|---|---|---|
| January | 5.67 | 1.68 | 1.32 | 4.31 | 27.1 °C |
| February | 5.70 | 2.18 | 1.73 | 4.43 | 27.1 °C |
| March | 5.42 | 2.87 | 2.31 | 4.31 | 26.9 °C |
| April | 4.98 | 3.55 | 2.89 | 4.08 | 26.3 °C |
| May | 4.90 | 4.33 | 3.55 | 4.13 | 25.2 °C |
| June | 4.90 | 4.83 | 3.98 | 4.21 | 24.4 °C |
| July | 4.93 | 4.63 | 3.81 | 4.21 | 24.2 °C |
| August | 5.24 | 4.12 | 3.38 | 4.37 | 24.8 °C |
| September | 5.72 | 3.43 | 2.79 | 4.63 | 25.8 °C |
| October | 5.97 | 2.48 | 1.99 | 4.68 | 26.8 °C |
| November | 6.00 | 1.69 | 1.33 | 4.57 | 27.5 °C |
| December | 5.85 | 1.46 | 1.13 | 4.40 | 27.6 °C |
| Year | 5.44 avg | 3.11 avg | 920 kWh | 1591 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 1,040 Wp of panels at 70°, versus 290 Wp at 8°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Ikwiriri
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.
2.0 mrow pitch at 70°
2.2 mrow pitch at 8°
How Ikwiriri compares in Tanzania
Against the other 222 places in Tanzania with climate data, for a fixed array at its best angle.
165thof 223 places in Tanzania for sunshine, shared: 5.44 peak sun hours a day on flat ground.
−5%solar energy a year compared with the average place in Tanzania: 1,591 against 1,677 kWh per kWp.
+4 mindaylight on the longest day, compared with Dar es Salaam: 12 h 35 min against 12 h 31 min.
8°best year-round tilt here; across Tanzania it runs from 1° in Arusha to 13° in Sumbawanga.
Of the 223 places in Tanzania, Shelui and one other place get the most sun (6.25 peak sun hours a day) and Katerero and one other place the least (4.97); Ikwiriri ranks joint 165th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.13 kWh a day here, against 1.14 kWh on average in Tanzania. The shortest day lasts 11 h 40 min, −4 min compared with Dar es Salaam.
Solar forecast for Ikwiriri, 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 Ikwiriri
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A free, live card for Ikwiriri: 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.