Solarposition.org

Njombe · Tanzania · 9.02° S · 34.80° E

Solar position in Mtwango

Sun position, daylight and the best solar panel angle for Mtwango — computed for 9.02° S, 34.80° E, 1767 m above sea level.

Sunrise today06:14102° ESE
Sunset today18:36258° WSW
Best panel angle11°year-round, facing north
Off-grid angle2°best for the darkest month

The sun right now

Azimuth180.0°
Elevation87.2°
At solar noon, 12:25Open on the sun map

Sun in Mtwango today

Saturday, 24 October 2026 · local time UTC+3

EventTimeDirection / height
Astronomical dawn05:02sun 18° below horizon
Nautical dawn05:2712° below
Civil dawn05:526° below
Sunrise06:14102° ESE
Golden hour ends06:42sun 6° up
Solar noon12:2587.2° high
Golden hour starts18:07sun 6° up
Sunset18:36258° WSW
Civil dusk18:576° below
Nautical dusk19:2212° below
Astronomical dusk19:4718° below
Day length12 h 22 min

Sun path diagram for Mtwango

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice89101112131415161718EquinoxDecember solstice789101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 57.6° at solar noon in Mtwango; on the December solstice only 75.6°. 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.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January06:3512:5219:0812 h 34 min79.2°
February06:4412:5419:0412 h 20 min88.5°
March06:4412:4718:5012 h 06 min80.7°
April06:4312:3918:3511 h 51 min69.1°
May06:4712:3718:2711 h 40 min60.8°
June06:5412:4218:3011 h 36 min57.6°
July06:5712:4718:3711 h 40 min60.6°
August06:4812:4418:3911 h 51 min68.9°
September06:3112:3318:3612 h 06 min80.4°
October06:1512:2518:3512 h 21 min88.3°
November06:0912:2618:4312 h 34 min79.1°
December06:1912:3818:5812 h 39 min75.6°

A year of daylight in Mtwango

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Mtwango

Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

11°collects the most energy over a year: 1652 kWh per kWp.

2°gives the most in the darkest month — the one an off-grid system is sized for.

20%30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 11°Best worst-month 2°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJanuary kWh/kWp/dayBest ÷ worst month
0°162598%4.101.3×
2° off-grid best163499%4.071.3×
9° = latitude1651100%3.941.3×
11° year-round best1652100%3.891.3×
15°1649100%3.791.4×
30°157996%3.271.6×
45°142286%2.612.0×
60°119172%1.872.7×
70°101061%1.413.4×
90°68441%1.153.4×

A fixed array in Mtwango produces the most over a year at 11°. The design month for an off-grid system is January: at 2° it makes 4.07 kWh per kWp a day, 5% more than at 11°, and costs 1% of the yearly total. Why steep panels win winter.

Off-grid solar in Mtwango at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 11° (year-round best).

0123456January: 1.41 (70°)1.4JanFebruary: 1.78 (70°)1.8FebMarch: 2.42 (70°)2.4MarApril: 3.03 (70°)3.0AprMay: 3.83 (70°)3.8MayJune: 4.46 (70°)4.5JunJuly: 4.37 (70°)4.4JulAugust: 3.89 (70°)3.9AugSeptember: 3.12 (70°)3.1SepOctober: 2.10 (70°)2.1OctNovember: 1.42 (70°)1.4NovDecember: 1.31 (70°)1.3Dec11°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 11°Mean temp.
January5.071.761.413.8921.1 °C
February5.352.181.784.2121.1 °C
March5.332.932.424.3320.9 °C
April4.983.633.034.2120.1 °C
May4.964.553.834.4018.8 °C
June5.075.274.464.6317.3 °C
July5.175.154.374.6917.0 °C
August5.614.623.894.9018.7 °C
September6.223.763.125.1720.9 °C
October6.442.572.105.0822.8 °C
November6.191.771.424.7023.4 °C
December5.421.641.314.0922.2 °C
Year5.48 avg3.33 avg1010 kWh1652 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 900 Wp of panels at 70°, versus 300 Wp at 11°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Mtwango

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 11°

Row spacing calculator

How Mtwango compares in Tanzania

Against the other 222 places in Tanzania with climate data, for a fixed array at its best angle.

145thof 223 places in Tanzania for sunshine, shared: 5.48 peak sun hours a day on flat ground.

−2%solar energy a year compared with the average place in Tanzania: 1,652 against 1,677 kWh per kWp.

+8 mindaylight on the longest day, compared with Dar es Salaam: 12 h 39 min against 12 h 31 min.

11°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); Mtwango ranks joint 145th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 1.31 kWh a day here, against 1.14 kWh on average in Tanzania. The shortest day lasts 11 h 36 min, −8 min compared with Dar es Salaam.

The sunniest places in Tanzania

Solar forecast for Mtwango, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Mtwango

What is the best solar panel angle in Mtwango?
For a fixed array facing north, the best year-round tilt in Mtwango is 11°, worth about 1652 kWh per kWp a year. An off-grid system that has to get through January does better at about 2°.
What time is sunrise and sunset in Mtwango today?
On 24 October 2026 the sun rises at 06:14 and sets at 18:36 local time (UTC+3), giving 12 h 22 min of daylight. Solar noon is at 12:25.
How many peak sun hours does Mtwango get?
On a flat surface 5.5 hours a day averaged over the year, from 5.0 in May to 6.4 in October. Panels tilted at 70° receive 1.6 sun hours a day in December.
How high does the sun get in Mtwango?
At solar noon the sun stands 57.6° above the horizon on the June solstice and 75.6° on the December solstice.
Is Mtwango a good place for solar panels?
With 5.5 peak sun hours a day on flat ground, Mtwango ranks joint 145th of 223 places in Tanzania for sunshine. A 1 kWp array at the best angle (11°) makes about 1,652 kWh a year here, 2% less than the average place in Tanzania.

Places near Mtwango

All places in Tanzania

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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.