Cerro San Luis Obispo is a mountain peak in San Luis Obispo County, California at about 387 m (1,270 ft) above sea level. It sits roughly 1.8 km (1.1 mi) W of San Luis Obispo.
Cerro San Luis Obispo (Obispeño: łpɨłhɨtšnuka ) is a 1,292 feet (394 m) mountain in San Luis Obispo, California. It is part of the chain of peaks called the Nine Sisters. It is a common spot for hiking, jogging and mountain biking, and has steep terrain. Below the west side of the visible peak, there is a large plateau with a large wooden stage on the east end. The large white "M" present on the east face derives from Mission College Preparatory Catholic High School.From the Wikipedia article “Cerro San Luis Obispo”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Cerro San Luis Obispo the sunrise point swings a long way through the year: about 60° (ENE) at the June solstice and 119° (ESE) in late December. Sunset moves from 300° (WNW) in June to 242° (WSW) in December, and the midday sun climbs to 78° in summer but only 31° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:07 AM | 90° E | 7:15 PM | 271° W | 55° | 12h 08m |
| June solstice (Jun 21) | 5:49 AM | 60° ENE | 8:21 PM | 300° WNW | 78° | 14h 32m |
| September equinox (Sep 22) | 6:51 AM | 89° E | 7:01 PM | 271° W | 55° | 12h 10m |
| December solstice (Dec 21) | 7:08 AM | 119° ESE | 4:55 PM | 242° WSW | 31° | 9h 46m |
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
Summits catch first and last light — alpenglow can turn rock pink or orange minutes before sunrise and after sunset while valleys stay in shadow.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:44 AM | 7:12 AM | 7:50 AM | 4:36 PM | 5:14 PM | 5:42 PM | 10h 02m |
| February | 6:24 AM | 6:50 AM | 7:25 AM | 5:10 PM | 5:46 PM | 6:12 PM | 10h 56m |
| March | 6:49 AM | 7:14 AM | 7:48 AM | 6:37 PM | 7:11 PM | 7:36 PM | 11h 56m |
| April | 6:05 AM | 6:31 AM | 7:05 AM | 7:02 PM | 7:36 PM | 8:02 PM | 13h 05m |
| May | 5:31 AM | 5:59 AM | 6:35 AM | 7:25 PM | 8:01 PM | 8:29 PM | 14h 01m |
| June | 5:19 AM | 5:48 AM | 6:26 AM | 7:42 PM | 8:20 PM | 8:50 PM | 14h 31m |
| July | 5:31 AM | 6:00 AM | 6:37 AM | 7:42 PM | 8:19 PM | 8:48 PM | 14h 19m |
| August | 5:56 AM | 6:23 AM | 6:58 AM | 7:18 PM | 7:53 PM | 8:20 PM | 13h 30m |
| September | 6:21 AM | 6:46 AM | 7:20 AM | 6:38 PM | 7:11 PM | 7:37 PM | 12h 25m |
| October | 6:44 AM | 7:09 AM | 7:44 AM | 5:54 PM | 6:29 PM | 6:54 PM | 11h 19m |
| November | 6:12 AM | 6:39 AM | 7:16 AM | 4:21 PM | 4:58 PM | 5:25 PM | 10h 19m |
| December | 6:37 AM | 7:05 AM | 7:44 AM | 4:13 PM | 4:53 PM | 5:21 PM | 9h 48m |
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 Cerro San Luis Obispo, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 5.8 hours on a moonless night), and the core peaks around 26° above the southern horizon. Our light-pollution model puts the sky at about Bortle 7 (suburban / urban transition), 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 | — | -1° | — |
| February | 4:51 AM – 5:21 AM | 0.5 | 15° | SE → SE |
| March | 3:55 AM – 5:45 AM | 1.8 | 23° | SE → SSE |
| April | 1:55 AM – 4:55 AM | 3.0 | 26° | SE → S |
| May | 12:00 AM – 4:10 AM | 4.2 | 26° | SE → SSW |
| June | 10:07 PM – 3:57 AM | 5.8 | 26° | SE → SW |
| July | 10:03 PM – 2:33 AM | 4.5 | 26° | SSE → SW |
| August | 9:26 PM – 12:26 AM | 3.0 | 26° | S → SW |
| September | 8:37 PM – 10:27 PM | 1.8 | 23° | SSW → SW |
| October | 7:53 PM – 8:33 PM | 0.7 | 15° | SW → SW |
| November | Below 10° in darkness | — | 2° | — |
| December | Below 10° in darkness | — | -19° | — |
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: 7 Bortle 7 — Suburban / urban transition. The whole sky has a grey-white glow; the Milky Way is invisible to the eye. Modeled zenith brightness ≈ 18.74 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show August as the clearest month (about 18% average cloud cover) and December as the cloudiest (48%). 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 | 81 | 78 | 84 | 95 | 98 | 105 | 106 | 105 | 109 | 100 | 89 | 78 |
| Low °F | 25 | 29 | 32 | 34 | 40 | 43 | 50 | 49 | 47 | 40 | 30 | 28 |
| Precip. (in) | 2.8 | 2.6 | 2.2 | 1.1 | 0.5 | 0.2 | 0.1 | 0.1 | 0.1 | 0.7 | 1.2 | 2.6 |
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 mountain peak
- Photograph the peak from a lake, meadow or ridge at sunrise when the face that looks east lights up first.
- Long lenses compress ridgelines; shoot the peak from several miles away to make it look massive.
- Afternoon thunderstorms are common in summer at high elevations — plan summit hikes for early morning.
- Snow on the summit holds detail best when you expose for the highlights and lift shadows later.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Early summer keeps snow on the peaks with green valleys below; autumn adds aspen or larch color in many ranges.
Suggested gear: Telephoto lens, Lightweight tripod, Warm layers, Microspikes in shoulder seasons. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Cerro San Luis Obispo, closest first.
Mountain Peak
Botanical Garden
Mountain Peak
Botanical Garden
Mountain Pass
Hot Spring
Natural Arch
Mountain Peak
State ParkCampgrounds nearby (Recreation.gov)
FAQ
When is the best time to photograph Cerro San Luis Obispo?
What time is golden hour at Cerro San Luis Obispo?
Where does the sun rise and set at Cerro San Luis Obispo?
Can you see the Milky Way from Cerro San Luis Obispo?
Do you need a permit to photograph at Cerro San Luis Obispo?
How far is Cerro San Luis Obispo from San Luis Obispo?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, 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.