Eaton Canyon is a canyon in Los Angeles County, California. The nearest town is Altadena, about 4.3 km (2.7 mi) away (Eaton Canyon lies ENE of town).
Eaton Canyon is a major canyon beginning at the Eaton Saddle near Mount Markham and San Gabriel Peak in the San Gabriel Mountains in the Angeles National Forest, United States. Its drainage flows into the Rio Hondo river and then into the Los Angeles River. It is named after Judge Benjamin S. Eaton, who lived in the Fair Oaks Ranch House in 1865 not far from Eaton Creek. The most well-known portion of the canyon is the Eaton Canyon Nature Center in Pasadena, California. The trailhead of the Mount Wilson Toll Road is in the canyon.From the Wikipedia article “Eaton Canyon”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Eaton Canyon the sunrise point swings a long way through the year: about 61° (ENE) at the June solstice and 118° (ESE) in late December. Sunset moves from 300° (WNW) in June to 242° (WSW) in December, and the midday sun climbs to 79° in summer but only 32° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:57 AM | 90° E | 7:04 PM | 271° W | 56° | 12h 08m |
| June solstice (Jun 21) | 5:42 AM | 61° ENE | 8:08 PM | 300° WNW | 79° | 14h 26m |
| September equinox (Sep 22) | 6:41 AM | 89° E | 6:51 PM | 271° W | 56° | 12h 09m |
| December solstice (Dec 21) | 6:55 AM | 118° ESE | 4:47 PM | 242° WSW | 32° | 9h 52m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Canyons need light from above: rims glow at sunrise and sunset, while deep or narrow sections are brightest near midday when reflected light bounces off the walls.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:31 AM | 6:59 AM | 7:36 AM | 4:29 PM | 5:06 PM | 5:33 PM | 10h 07m |
| February | 6:13 AM | 6:38 AM | 7:13 AM | 5:02 PM | 5:37 PM | 6:02 PM | 10h 58m |
| March | 6:39 AM | 7:04 AM | 7:37 AM | 6:27 PM | 7:01 PM | 7:26 PM | 11h 57m |
| April | 5:56 AM | 6:22 AM | 6:55 AM | 6:51 PM | 7:24 PM | 7:50 PM | 13h 02m |
| May | 5:24 AM | 5:51 AM | 6:27 AM | 7:12 PM | 7:48 PM | 8:16 PM | 13h 56m |
| June | 5:12 AM | 5:41 AM | 6:18 AM | 7:29 PM | 8:06 PM | 8:36 PM | 14h 25m |
| July | 5:24 AM | 5:52 AM | 6:29 AM | 7:29 PM | 8:06 PM | 8:34 PM | 14h 13m |
| August | 5:48 AM | 6:15 AM | 6:49 AM | 7:07 PM | 7:41 PM | 8:08 PM | 13h 26m |
| September | 6:11 AM | 6:36 AM | 7:09 AM | 6:28 PM | 7:01 PM | 7:26 PM | 12h 24m |
| October | 6:33 AM | 6:58 AM | 7:32 AM | 5:45 PM | 6:19 PM | 6:45 PM | 11h 21m |
| November | 6:00 AM | 6:26 AM | 7:03 AM | 4:13 PM | 4:50 PM | 5:16 PM | 10h 23m |
| December | 6:24 AM | 6:52 AM | 7:30 AM | 4:07 PM | 4:45 PM | 5:13 PM | 9h 53m |
Local time (America/Los Angeles), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Eaton Canyon, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 6.0 hours on a moonless night), and the core peaks around 27° above the southern horizon. Our light-pollution model puts the sky at about Bortle 8 (city sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 0° | — |
| February | 4:30 AM – 5:10 AM | 0.7 | 16° | SE → SE |
| March | 3:44 AM – 5:34 AM | 1.8 | 23° | SE → SSE |
| April | 1:42 AM – 4:42 AM | 3.0 | 27° | SE → S |
| May | 11:45 PM – 4:05 AM | 4.3 | 27° | SE → SSW |
| June | 9:51 PM – 3:51 AM | 6.0 | 27° | SE → SW |
| July | 9:47 PM – 2:27 AM | 4.7 | 27° | SSE → SW |
| August | 9:12 PM – 12:22 AM | 3.2 | 27° | S → SW |
| September | 8:25 PM – 10:25 PM | 2.0 | 24° | SSW → SW |
| October | 7:42 PM – 8:22 PM | 0.7 | 16° | SW → SW |
| November | Below 10° in darkness | — | 2° | — |
| December | Below 10° in darkness | — | -18° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 8 Bortle 8 — City sky. Only bright constellations are visible; the sky glows orange or white. Modeled zenith brightness ≈ 18.29 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show August as the clearest month (about 14% average cloud cover) and January as the cloudiest (42%). July is the warmest month and December the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 80 | 84 | 87 | 93 | 99 | 109 | 110 | 107 | 112 | 101 | 89 | 80 |
| Low °F | 24 | 25 | 26 | 30 | 36 | 42 | 50 | 51 | 43 | 35 | 27 | 24 |
| Precip. (in) | 2.9 | 3.1 | 1.9 | 0.8 | 0.4 | 0.0 | 0.1 | 0.0 | 0.1 | 0.7 | 1.0 | 2.4 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this canyon
- Check flash flood forecasts before entering slot or narrow canyons — rain miles away can flood them.
- Dust and sand are hard on gear; change lenses in a bag or with your back to the wind.
- A long lens on a tripod handles the low light inside canyons better than raising ISO.
- From the rim, sunrise and sunset side-light reveals layers; a telephoto picks out buttes and shadows.
- Check road and trail conditions with the managing agency before you go.
Season: Spring and autumn are comfortable; summer monsoon storms bring dramatic skies but higher flood risk in the Southwest.
Suggested gear: Tripod, Wide and telephoto lenses, Lens blower, Weather radio or app. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Eaton Canyon, closest first.
Mountain Peak
Mountain Peak
Botanical Garden
Mountain Peak
Canyon
Mountain Pass
Waterfall
Botanical Garden
WaterfallCampgrounds nearby (Recreation.gov)
- Chilao Campground - Little Pines Loop14.6 km (9.1 mi) · reservable
- Coulter Group Campground14.6 km (9.1 mi) · reservable
- Meadow Group Campground14.7 km (9.1 mi) · reservable
- Bandido Group Campground17.4 km (10.8 mi) · reservable
- Lightning Point Group Campground21 km (13 mi) · reservable
FAQ
When is the best time to photograph Eaton Canyon?
What time is golden hour at Eaton Canyon?
Where does the sun rise and set at Eaton Canyon?
Can you see the Milky Way from Eaton Canyon?
Do you need a permit to photograph at Eaton Canyon?
How far is Eaton Canyon from Altadena?
Sources
Location data: Wikidata, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.