Jalisco · Mexico · 20.68° N · 103.35° W
Solar position in Guadalajara
Sun position, daylight and the best solar panel angle for Guadalajara — computed for 20.68° N, 103.35° W, 1546 m above sea level.
The sun right now
Sun in Guadalajara today
Saturday, 24 October 2026 · local time UTC−6
| Event | Time | Direction / height |
|---|---|---|
| Astronomical dawn | 05:37 | sun 18° below horizon |
| Nautical dawn | 06:03 | 12° below |
| Civil dawn | 06:29 | 6° below |
| Sunrise | 06:52 | 102° ESE |
| Golden hour ends | 07:22 | sun 6° up |
| Solar noon | 12:37 | 57.4° high |
| Golden hour starts | 17:52 | sun 6° up |
| Sunset | 18:22 | 257° WSW |
| Civil dusk | 18:45 | 6° below |
| Nautical dusk | 19:11 | 12° below |
| Astronomical dusk | 19:37 | 18° below |
| Day length | 11 h 31 min | |
Sun path diagram for Guadalajara
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 87.2° at solar noon in Guadalajara; on the December solstice only 45.9°. 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.
| Month | Sunrise | Solar noon | Sunset | Day length | Noon elevation |
|---|---|---|---|---|---|
| January | 07:32 | 13:04 | 18:37 | 11 h 05 min | 49.6° |
| February | 07:19 | 13:07 | 18:54 | 11 h 36 min | 59.0° |
| March | 06:56 | 13:00 | 19:04 | 12 h 08 min | 69.8° |
| April | 06:30 | 12:52 | 19:14 | 12 h 44 min | 81.4° |
| May | 06:14 | 12:50 | 19:26 | 13 h 12 min | 89.6° |
| June | 06:13 | 12:55 | 19:36 | 13 h 23 min | 87.2° |
| July | 06:23 | 12:59 | 19:35 | 13 h 12 min | 89.7° |
| August | 06:34 | 12:56 | 19:18 | 12 h 44 min | 81.2° |
| September | 06:42 | 12:46 | 18:50 | 12 h 08 min | 69.8° |
| October | 06:50 | 12:37 | 18:24 | 11 h 34 min | 58.4° |
| November | 07:07 | 12:39 | 18:11 | 11 h 04 min | 49.3° |
| December | 07:25 | 12:51 | 18:17 | 10 h 53 min | 45.9° |
A year of daylight in Guadalajara
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 Guadalajara
Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.
21°collects the most energy over a year: 1870 kWh per kWp.
16°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 | July kWh/kWp/day | Best ÷ worst month |
|---|---|---|---|---|
| 0° | 1758 | 94% | 4.89 | 1.6× |
| 15° | 1860 | 99% | 4.65 | 1.3× |
| 16° off-grid best | 1862 | 100% | 4.62 | 1.3× |
| 21° year-round best = latitude | 1870 | 100% | 4.48 | 1.4× |
| 30° | 1851 | 99% | 4.15 | 1.5× |
| 45° | 1735 | 93% | 3.45 | 1.7× |
| 60° | 1520 | 81% | 2.60 | 2.2× |
| 70° | 1331 | 71% | 2.00 | 2.9× |
| 90° | 912 | 49% | 1.20 | 4.6× |
A fixed array in Guadalajara produces the most over a year at 21°. The design month for an off-grid system is July: at 16° it makes 4.62 kWh per kWp a day, 3% more than at 21°, and costs 0% of the yearly total. Why steep panels win winter.
Off-grid solar in Guadalajara at 70°
Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 21° (year-round best).
| Month | Sun hours, flat | Sun hours at 70° | kWh/kWp/day at 70° | at 21° | Mean temp. |
|---|---|---|---|---|---|
| January | 4.80 | 6.10 | 5.20 | 5.06 | 15.3 °C |
| February | 5.76 | 5.97 | 5.06 | 5.63 | 17.0 °C |
| March | 6.84 | 5.23 | 4.40 | 6.05 | 19.1 °C |
| April | 7.46 | 3.76 | 3.11 | 5.90 | 21.8 °C |
| May | 7.32 | 2.62 | 2.13 | 5.35 | 23.6 °C |
| June | 6.50 | 2.26 | 1.83 | 4.69 | 22.7 °C |
| July | 6.01 | 2.44 | 2.00 | 4.48 | 20.5 °C |
| August | 5.97 | 2.98 | 2.46 | 4.66 | 20.3 °C |
| September | 5.39 | 3.63 | 3.03 | 4.51 | 19.8 °C |
| October | 5.40 | 4.91 | 4.12 | 4.99 | 19.0 °C |
| November | 5.05 | 6.13 | 5.19 | 5.21 | 17.0 °C |
| December | 4.61 | 6.23 | 5.30 | 4.97 | 15.6 °C |
| Year | 5.93 avg | 4.35 avg | 1331 kWh | 1870 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 640 Wp of panels at 70°, versus 260 Wp at 21°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.
Row spacing in Guadalajara
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°
2.6 mrow pitch at 21°
How Guadalajara compares in Mexico
Against the other 624 places in Mexico with climate data, for a fixed array at its best angle.
81stof 625 places in Mexico for sunshine, shared: 5.93 peak sun hours a day on flat ground.
+7%solar energy a year compared with the average place in Mexico: 1,870 against 1,754 kWh per kWp.
+5 mindaylight on the longest day, compared with Mexico City: 13 h 23 min against 13 h 18 min.
21°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); Guadalajara ranks joint 81st. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 1.83 kWh a day here, against 1.82 kWh on average in Mexico. The shortest day lasts 10 h 53 min, −5 min compared with Mexico City.
Solar forecast for Guadalajara, 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 Guadalajara
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Places near Guadalajara
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A free, live card for Guadalajara: 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.