Solarposition.org

Guanajuato · Mexico · 21.03° N · 101.88° W

Solar position in Purísima de Bustos

Sun position, daylight and the best solar panel angle for Purísima de Bustos — computed for 21.03° N, 101.88° W, 1779 m above sea level.

Sunrise today06:46102° ESE
Sunset today18:16257° WSW
Best panel angle22°year-round, facing south
Off-grid angle16°best for the darkest month

The sun right now

Azimuth180.0°
Elevation57.0°
At solar noon, 12:31Open on the sun map

Sun in Purísima de Bustos today

Saturday, 24 October 2026 · local time UTC−6

EventTimeDirection / height
Astronomical dawn05:32sun 18° below horizon
Nautical dawn05:5712° below
Civil dawn06:236° below
Sunrise06:46102° ESE
Golden hour ends07:16sun 6° up
Solar noon12:3157.0° high
Golden hour starts17:46sun 6° up
Sunset18:16257° WSW
Civil dusk18:396° below
Nautical dusk19:0512° below
Astronomical dusk19:3118° below
Day length11 h 30 min

Sun path diagram for Purísima de Bustos

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 solstice78910111213141516171819EquinoxDecember solstice89101112131415161718Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 87.6° at solar noon in Purísima de Bustos; on the December solstice only 45.5°. Sunrise swings from 64° ENE in June to 115° ESE in December — a 50° 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
January07:2612:5818:3111 h 04 min49.2°
February07:1313:0118:4811 h 35 min58.6°
March06:5012:5418:5812 h 08 min69.4°
April06:2312:4619:0812 h 45 min81.0°
May06:0712:4419:2013 h 13 min89.3°
June06:0712:4919:3113 h 25 min87.6°
July06:1712:5319:3013 h 13 min89.3°
August06:2812:5019:1212 h 44 min80.9°
September06:3612:4018:4412 h 08 min69.5°
October06:4512:3118:1811 h 33 min58.1°
November07:0112:3318:0511 h 03 min48.9°
December07:2012:4518:1110 h 51 min45.5°

A year of daylight in Purísima de Bustos

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 Purísima de Bustos

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

22°collects the most energy over a year: 1902 kWh per kWp.

16°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 22°Best worst-month 16°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearJuly kWh/kWp/dayBest ÷ worst month
0°178594%5.111.6×
15°189199%4.841.3×
16° off-grid best1894100%4.821.3×
21° = latitude1902100%4.661.3×
22° year-round best1902100%4.631.3×
30°188599%4.311.4×
45°176793%3.561.7×
60°155081%2.652.2×
70°135871%2.022.9×
90°93149%1.174.6×

A fixed array in Purísima de Bustos produces the most over a year at 22°. The design month for an off-grid system is July: at 16° it makes 4.82 kWh per kWp a day, 4% more than at 22°, and costs 0% of the yearly total. Why steep panels win winter.

Off-grid solar in Purísima de Bustos at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 22° (year-round best).

02468January: 5.33 (70°)5.3JanFebruary: 5.14 (70°)5.1FebMarch: 4.43 (70°)4.4MarApril: 3.13 (70°)3.1AprMay: 2.17 (70°)2.2MayJune: 1.86 (70°)1.9JunJuly: 2.02 (70°)2.0JulAugust: 2.53 (70°)2.5AugSeptember: 3.15 (70°)3.2SepOctober: 4.27 (70°)4.3OctNovember: 5.26 (70°)5.3NovDecember: 5.43 (70°)5.4Dec22°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 22°Mean temp.
January4.826.205.335.1913.2 °C
February5.766.025.145.7115.1 °C
March6.805.244.436.0717.4 °C
April7.373.763.135.8620.3 °C
May7.232.652.175.2922.0 °C
June6.572.281.864.7221.2 °C
July6.252.462.024.6319.4 °C
August6.253.042.534.8819.2 °C
September5.573.763.154.7018.5 °C
October5.495.044.275.1417.3 °C
November5.046.165.265.2915.0 °C
December4.636.335.435.1013.6 °C
Year5.98 avg4.40 avg1358 kWh1902 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 630 Wp of panels at 70°, versus 250 Wp at 22°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Purísima de Bustos

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.

2.7 mrow pitch at 70°

2.7 mrow pitch at 22°

Row spacing calculator

How Purísima de Bustos compares in Mexico

Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.

41stof 625 places in Mexico for sunshine, shared: 5.98 peak sun hours a day on flat ground.

+8%solar energy a year compared with the average place in Mexico: 1,902 against 1,754 kWh per kWp.

+6 mindaylight on the longest day, compared with Mexico City: 13 h 25 min against 13 h 18 min.

22°best year-round tilt here; across Mexico it runs from 15° in Coatzacoalcos to 30° in Tijuana.

Of the 625 places in Mexico, Ciudad Constitución gets the most sun (6.12 peak sun hours a day) and Poza Rica de Hidalgo and one other place the least (4.59); Purísima de Bustos ranks joint 41st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.86 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 51 min, −6 min compared with Mexico City.

The sunniest places in Mexico

Solar forecast for Purísima de Bustos, 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 Purísima de Bustos

What is the best solar panel angle in Purísima de Bustos?
For a fixed array facing south, the best year-round tilt in Purísima de Bustos is 22°, worth about 1902 kWh per kWp a year. An off-grid system that has to get through July does better at about 16°.
What time is sunrise and sunset in Purísima de Bustos today?
On 24 October 2026 the sun rises at 06:46 and sets at 18:16 local time (UTC−6), giving 11 h 30 min of daylight. Solar noon is at 12:31.
How many peak sun hours does Purísima de Bustos get?
On a flat surface 6.0 hours a day averaged over the year, from 4.6 in December to 7.4 in April. Panels tilted at 70° receive 2.3 sun hours a day in June.
How high does the sun get in Purísima de Bustos?
At solar noon the sun stands 87.6° above the horizon on the June solstice and 45.5° on the December solstice.
Is Purísima de Bustos a good place for solar panels?
With 6.0 peak sun hours a day on flat ground, Purísima de Bustos ranks joint 41st of 625 places in Mexico for sunshine. A 1 kWp array at the best angle (22°) makes about 1,902 kWh a year here, 8% more than the average place in Mexico.

Places near Purísima de Bustos

All places in Mexico

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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.