Tennessee · United States · 35.36° N · 86.21° W
Solar position in Tullahoma
Sun position, daylight and the best solar panel angle for Tullahoma — computed for 35.36° N, 86.21° W, 326 m above sea level.
The sun right now
Sun in Tullahoma today
Saturday, 24 October 2026 · local time UTC−5
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:33 | sun 18° below horizon |
| Nautical dawn | 06:03 | 12° below |
| Civil dawn | 06:33 | 6° below |
| Sunrise | 06:59 | 104° ESE |
| Golden hour ends | 07:34 | sun 6° up |
| Solar noon | 12:28 | 42.7° high |
| Golden hour starts | 17:23 | sun 6° up |
| Sunset | 17:58 | 256° WSW |
| Civil dusk | 18:24 | 6° below |
| Nautical dusk | 18:54 | 12° below |
| Astronomical dusk | 19:23 | 18° below |
| Day length | 10 h 59 min | |
Sun path diagram for Tullahoma
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 78.1° at solar noon in Tullahoma; on the December solstice only 31.2°. Sunrise swings from 60° ENE in June to 119° ESE in December — a 58° 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 | 06:50 | 11:56 | 17:01 | 10 h 11 min | 34.9° |
| February | 06:24 | 11:58 | 17:32 | 11 h 09 min | 44.3° |
| March | 06:46 | 12:52 | 18:57 | 12 h 11 min | 55.1° |
| April | 06:04 | 12:43 | 19:22 | 13 h 18 min | 66.7° |
| May | 05:36 | 12:41 | 19:47 | 14 h 11 min | 74.9° |
| June | 05:30 | 12:46 | 20:03 | 14 h 33 min | 78.1° |
| July | 05:45 | 12:51 | 19:56 | 14 h 11 min | 75.0° |
| August | 06:09 | 12:47 | 19:26 | 13 h 17 min | 66.6° |
| September | 06:32 | 12:37 | 18:42 | 12 h 11 min | 55.1° |
| October | 06:56 | 12:29 | 18:01 | 11 h 06 min | 43.8° |
| November | 06:26 | 11:30 | 16:35 | 10 h 09 min | 34.6° |
| December | 06:49 | 11:43 | 16:36 | 9 h 46 min | 31.2° |
A year of daylight in Tullahoma
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 Tullahoma
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
31°collects the most energy over a year: 1465 kWh per kWp.
60°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 | December kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1287 | 88% | 1.69 | 3.0× |
| 15° | 1417 | 97% | 2.28 | 2.2× |
| 30° | 1465 | 100% | 2.73 | 1.7× |
| 31° year-round best | 1465 | 100% | 2.76 | 1.7× |
| 35° = latitude | 1462 | 100% | 2.85 | 1.6× |
| 45° | 1428 | 97% | 3.01 | 1.5× |
| 60° off-grid best | 1311 | 89% | 3.11 | 1.3× |
| 70° | 1191 | 81% | 3.06 | 1.4× |
| 90° | 877 | 60% | 2.72 | 2.3× |
A fixed array in Tullahoma produces the most over a year at 31°. The design month for an off-grid system is December: at 60° it makes 3.11 kWh per kWp a day, 13% more than at 31°, and costs 11% of the yearly total. Why steep panels win winter.
Off-grid solar in Tullahoma at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 31° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 31° | Mean temp. |
|---|---|---|---|---|---|
| January | 2.36 | 3.76 | 3.37 | 3.10 | 2.8 °C |
| February | 2.89 | 3.62 | 3.21 | 3.30 | 4.8 °C |
| March | 4.04 | 3.99 | 3.47 | 4.05 | 9.6 °C |
| April | 5.35 | 3.97 | 3.38 | 4.66 | 14.8 °C |
| May | 5.88 | 3.47 | 2.88 | 4.59 | 19.5 °C |
| June | 6.35 | 3.32 | 2.71 | 4.66 | 23.9 °C |
| July | 6.05 | 3.37 | 2.73 | 4.50 | 25.8 °C |
| August | 5.56 | 3.74 | 3.05 | 4.44 | 25.7 °C |
| September | 4.81 | 4.28 | 3.54 | 4.39 | 22.3 °C |
| October | 3.75 | 4.55 | 3.87 | 4.08 | 15.7 °C |
| November | 2.81 | 4.45 | 3.89 | 3.62 | 9.1 °C |
| December | 2.06 | 3.45 | 3.06 | 2.76 | 4.7 °C |
| Year | 4.33 avg | 3.83 avg | 1191 kWh | 1465 kWh |
Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 440 Wp of panels at 70°, versus 430 Wp at 31°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Tullahoma
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.
4.2 mrow pitch at 70°
3.6 mrow pitch at 31°
How Tullahoma compares in the United States
Against the other 3,120 places in the United States with climate data, for a fixed array at its best angle.
1437thof 3,121 places in the United States for sunshine, shared: 4.33 peak sun hours a day on flat ground.
−3%solar energy a year compared with the average place in the United States: 1,465 against 1,515 kWh per kWp.
−33 mindaylight on the longest day, compared with New York City: 14 h 33 min against 15 h 06 min.
31°best year-round tilt here; across the United States it runs from 18° in Honolulu to 53° in Fairbanks.
Of the 3,121 places in the United States, Fortuna Foothills and 2 other places get the most sun (5.96 peak sun hours a day) and Juneau the least (2.38); Tullahoma ranks joint 1437th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 2.71 kWh a day here, against 2.55 kWh on average in the United States. The shortest day lasts 9 h 46 min, +31 min compared with New York City.
Solar forecast for Tullahoma, 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 Tullahoma
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Places near Tullahoma
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A free, live card for Tullahoma: 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.