Santa Fe · Argentina · 31.45° S · 60.93° W
Solar position in Esperanza
Sun position, daylight and the best solar panel angle for Esperanza — computed for 31.45° S, 60.93° W, 40 m above sea level.
The sun right now
Sun in Esperanza today
Saturday, 24 October 2026 · local time UTC−3
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 04:48 | sun 18° below horizon |
| Nautical dawn | 05:19 | 12° below |
| Civil dawn | 05:49 | 6° below |
| Sunrise | 06:14 | 104° ESE |
| Golden hour ends | 06:47 | sun 6° up |
| Solar noon | 12:47 | 70.5° high |
| Golden hour starts | 18:48 | sun 6° up |
| Sunset | 19:21 | 255° WSW |
| Civil dusk | 19:47 | 6° below |
| Nautical dusk | 20:17 | 12° below |
| Astronomical dusk | 20:48 | 18° below |
| Day length | 13 h 07 min | |
Sun path diagram for Esperanza
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 35.1° at solar noon in Esperanza; on the December solstice only 82.0°. Sunrise swings from 63° ENE in June to 118° ESE in December — a 56° 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 | 06:19 | 13:15 | 20:10 | 13 h 50 min | 78.3° |
| February | 06:47 | 13:17 | 19:46 | 12 h 59 min | 68.9° |
| March | 07:07 | 13:10 | 19:13 | 12 h 06 min | 58.1° |
| April | 07:28 | 13:02 | 18:36 | 11 h 08 min | 46.5° |
| May | 07:48 | 13:00 | 18:12 | 10 h 24 min | 38.3° |
| June | 08:02 | 13:05 | 18:08 | 10 h 06 min | 35.1° |
| July | 07:58 | 13:10 | 18:22 | 10 h 24 min | 38.2° |
| August | 07:32 | 13:07 | 18:41 | 11 h 08 min | 46.6° |
| September | 06:54 | 12:56 | 18:59 | 12 h 05 min | 58.0° |
| October | 06:17 | 12:48 | 19:19 | 13 h 02 min | 69.4° |
| November | 05:54 | 12:49 | 19:45 | 13 h 52 min | 78.6° |
| December | 05:55 | 13:01 | 20:07 | 14 h 12 min | 82.0° |
A year of daylight in Esperanza
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 Esperanza
Fixed array facing north (azimuth 0°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
28°collects the most energy over a year: 1625 kWh per kWp.
55°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° | 1458 | 90% | 2.07 | 2.8× |
| 15° | 1589 | 98% | 2.74 | 2.0× |
| 28° year-round best | 1625 | 100% | 3.19 | 1.6× |
| 30° | 1624 | 100% | 3.25 | 1.6× |
| 31° = latitude | 1623 | 100% | 3.27 | 1.6× |
| 45° | 1563 | 96% | 3.54 | 1.3× |
| 55° off-grid best | 1471 | 91% | 3.62 | 1.3× |
| 60° | 1411 | 87% | 3.62 | 1.3× |
| 70° | 1264 | 78% | 3.54 | 1.6× |
| 90° | 896 | 55% | 3.10 | 2.8× |
A fixed array in Esperanza produces the most over a year at 28°. The design month for an off-grid system is June: at 55° it makes 3.62 kWh per kWp a day, 13% more than at 28°, and costs 9% of the yearly total. Why steep panels win winter.
Off-grid solar in Esperanza at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 28° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 28° | Mean temp. |
|---|---|---|---|---|---|
| January | 7.18 | 3.41 | 2.75 | 5.22 | 26.8 °C |
| February | 6.19 | 3.91 | 3.19 | 4.96 | 25.2 °C |
| March | 5.28 | 4.51 | 3.73 | 4.77 | 22.6 °C |
| April | 3.94 | 4.58 | 3.85 | 4.11 | 18.8 °C |
| May | 2.97 | 4.21 | 3.60 | 3.44 | 14.7 °C |
| June | 2.56 | 4.10 | 3.54 | 3.19 | 11.8 °C |
| July | 2.84 | 4.37 | 3.79 | 3.48 | 11.1 °C |
| August | 3.78 | 4.86 | 4.18 | 4.22 | 13.1 °C |
| September | 4.88 | 4.73 | 4.02 | 4.75 | 16.0 °C |
| October | 5.73 | 4.05 | 3.39 | 4.88 | 19.6 °C |
| November | 6.92 | 3.54 | 2.91 | 5.25 | 22.8 °C |
| December | 7.25 | 3.20 | 2.59 | 5.19 | 25.1 °C |
| Year | 4.95 avg | 4.12 avg | 1264 kWh | 1625 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 450 Wp of panels at 70°, versus 370 Wp at 28°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Esperanza
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.
3.7 mrow pitch at 70°
3.3 mrow pitch at 28°
How Esperanza compares in Argentina
Against the other 313 places in Argentina with climate data, for a fixed array at its best angle.
98thof 314 places in Argentina for sunshine, shared: 4.95 peak sun hours a day on flat ground.
−1%solar energy a year compared with the average place in Argentina: 1,625 against 1,639 kWh per kWp.
−17 mindaylight on the longest day, compared with Buenos Aires: 14 h 12 min against 14 h 29 min.
28°best year-round tilt here; across Argentina it runs from 21° in Tartagal to 44° in Río Gallegos.
Of the 314 places in Argentina, Belén gets the most sun (6.11 peak sun hours a day) and Ushuaia the least (2.59); Esperanza ranks joint 98th. In its darkest month, December, 1 kWp of off-grid panels at 70° makes 2.59 kWh a day here, against 2.68 kWh on average in Argentina. The shortest day lasts 10 h 06 min, +16 min compared with Buenos Aires.
Solar forecast for Esperanza, 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 Esperanza
What is the best solar panel angle in Esperanza?
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Places near Esperanza
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A free, live card for Esperanza: 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.