The Rio Grande, separating Mexico from the U.S., within the massive 1,500 foot high walls of Santa Elena Canyon.
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29.2500° N103.2500° WBortle 1Chicago

Big Bend National Park Photography Guide

Dark Sky Place in Brewster County, Texas

  • Bortle 1 sky
  • Sunset azimuth 244°–298°
  • Clearest: October
  • Milky Way Feb–Oct
Photo: eclectico63 · CC BY-SA 2.0 · source

Located in Brewster County, Texas, Big Bend National Park is a dark sky place. It lies in or next to Big Bend National Park, so park hours, fees and rules apply. The nearest town is Alpine, about 130 km (80 mi) away (Big Bend National Park lies SSE of town). It is certified as an International Dark Sky Park by DarkSky International.

Big Bend National Park is a national park of the United States located in West Texas, bordering Mexico. The park has national significance as the largest protected area of Chihuahuan Desert topography and ecology in the United States, and was named after a large bend in the Rio Grande/Río Bravo. The park protects more than 1,200 species of plants, more than 450 species of birds, 56 species of reptiles, and 75 species of mammals. The area has a rich cultural history, from archeological sites dating back nearly 10,000 years to more recent pioneers, ranchers, and miners. The Chisos Mountains are located in the park, and are the only mountain range in the United States to be fully contained within the boundary of a national park. Geological features in the park include sea fossils and dinosaur bones, as well as volcanic dikes.From the Wikipedia article “Big Bend National Park”, licensed under CC BY-SA 4.0.
Nearest town
Alpine
130 km (80 mi)
Sky darkness
Bortle 1
Excellent dark-sky site
Clearest month
October
29% cloud
Milky Way peak
June
6.7 h window
Golden hour (Oct)
6:52 PM
sunset 7:24 PM

Light at Big Bend National Park

Live
Sunrise
7:58 AM
Sunset
7:19 PM
Golden hour AM
7:43 AM – 8:30 AM
Golden hour PM
6:47 PM – 7:34 PM
Blue hour AM
7:34 AM – 7:43 AM
Blue hour PM
7:34 PM – 7:43 PM
Full darkness
8:38 PM – 6:39 AM
Moon
Waxing Gibbous · 70%
Moonrise / set
4:06 PM / 2:32 AM
Day length
11h 21m
Sunrise azimuth
101°
Sunset azimuth
259°
000306091215182124
NightTwilightBlue hourGolden hourDaylight

Times in America/Chicago. Golden hour = sun −4° to +6°; blue hour = −6° to −4°.

Clouds at sunrise & sunset

NWS

Hourly sky cover from the National Weather Service. 20–60% cloud often gives the most colorful sunrises and sunsets.

Sunrise & sunset directions

At Big Bend National Park the sunrise point swings a long way through the year: about 62° (ENE) at the June solstice and 117° (ESE) in late December. Sunset moves from 298° (WNW) in June to 244° (WSW) in December, and the midday sun climbs to 84° in summer but only 37° in winter.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)7:58 AM90° E8:05 PM271° W61°12h 07m
June solstice (Jun 21)6:55 AM62° ENE8:56 PM298° WNW84°14h 01m
September equinox (Sep 22)7:42 AM89° E7:51 PM271° W61°12h 09m
December solstice (Dec 21)7:44 AM117° ESE6:00 PM244° WSW37°10h 16m

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

Certified dark sky places offer protected night skies — plan around the new moon and the Milky Way core season.

Month (15th)Blue hour startsSunriseGolden hour endsGolden hour startsSunsetBlue hour endsDaylight
January7:23 AM7:49 AM8:24 AM5:42 PM6:17 PM6:43 PM10h 29m
February7:09 AM7:33 AM8:06 AM6:11 PM6:43 PM7:07 PM11h 10m
March7:40 AM8:04 AM8:35 AM7:31 PM8:02 PM8:26 PM11h 58m
April7:03 AM7:27 AM7:59 AM7:48 PM8:20 PM8:44 PM12h 52m
May6:36 AM7:02 AM7:35 AM8:05 PM8:39 PM9:04 PM13h 37m
June6:27 AM6:54 AM7:29 AM8:20 PM8:54 PM9:22 PM14h 00m
July6:38 AM7:04 AM7:38 AM8:21 PM8:55 PM9:21 PM13h 50m
August6:57 AM7:22 AM7:55 AM8:02 PM8:35 PM8:59 PM13h 12m
September7:15 AM7:39 AM8:10 AM7:28 PM8:00 PM8:23 PM12h 21m
October7:31 AM7:55 AM8:27 AM6:52 PM7:24 PM7:48 PM11h 29m
November6:53 AM7:18 AM7:52 AM5:25 PM5:59 PM6:24 PM10h 42m
December7:14 AM7:41 AM8:16 AM5:22 PM5:58 PM6:24 PM10h 17m

Local time (America/Chicago), 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 Big Bend National Park, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 6.7 hours on a moonless night), and the core peaks around 32° above the southern horizon. Our light-pollution model puts the sky at about Bortle 1 (excellent dark-sky site), which is excellent for astrophotography.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—2°—
February5:13 AM – 6:03 AM0.819°SE → SE
March4:21 AM – 6:41 AM2.329°SE → SSE
April2:22 AM – 6:02 AM3.732°SE → S
May12:18 AM – 5:28 AM5.232°SE → SSW
June10:30 PM – 5:10 AM6.732°SE → SW
July10:27 PM – 3:47 AM5.332°SSE → SW
August10:00 PM – 1:50 AM3.832°S → SW
September9:19 PM – 11:49 PM2.529°SSW → SW
October8:43 PM – 9:43 PM1.020°SW → SW
NovemberBelow 10° in darkness—5°—
DecemberBelow 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: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.95 mag/arcsec².

Weather & best season

Long-term NASA satellite data for this area show October as the clearest month (about 29% average cloud cover) and July as the cloudiest (46%). June is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.

Average cloud cover (%)

JanFebMarAprMayJunJulAugSepOctNovDec
JanFebMarAprMayJunJulAugSepOctNovDec
High °F839396102108110109107104989183
Low °F201122353861626051302118
Precip. (in)0.50.40.40.51.11.41.91.91.81.00.60.5

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 dark sky place

  • Use the Milky Way table to find months and hours when the core is above the horizon.
  • Use red light only and keep it pointed down to protect others' night vision.
  • Set focus on a bright star with live-view magnification, then tape the focus ring.
  • Use the NPF rule below to choose the longest exposure before stars trail.
  • Many parks host star parties and night programs during summer.
  • Scout in daylight if you plan to shoot at night or before sunrise.

Season: Milky Way core season runs roughly March to October; winter offers long nights and bright winter constellations.

Suggested gear: Fast wide lens (f/1.4–f/2.8), Sturdy tripod, Red headlamp, Intervalometer. Work out exposures with the depth of field, ND filter and NPF rule calculators.

Permits, drones & access

National Park Service rules. Under federal law (54 U.S.C. 100905), still photography in National Park Service areas needs a permit only when it (1) takes place where members of the public are not allowed, (2) uses models, sets or props that are not part of the location's natural or cultural resources or administrative facilities, or (3) would cause the park to incur additional administrative costs to monitor the activity. Ordinary visitor and most landscape photography needs no permit. Commercial filming rules are separate and have changed in recent years — confirm current requirements with the park before a paid shoot.

Drones: Launching, landing or operating unmanned aircraft (drones) is prohibited in National Park Service units under a 2014 Superintendent's closure (36 CFR 1.5), except where a park has issued specific written approval. Flying from outside the boundary over park land can also violate park rules and disturb wildlife.

Nearby photo spots

Other locations within 40 km of Big Bend National Park, closest first.

Campgrounds nearby (Recreation.gov)

FAQ

When is the best time to photograph Big Bend National Park?
October has the clearest skies on average; june is best for the milky way core. For light, plan around the first and last hour of sun. Milky Way core season runs roughly March to October; winter offers long nights and bright winter constellations.
What time is golden hour at Big Bend National Park?
In October the evening golden hour starts around 6:52 PM and ends after sunset at about 7:24 PM; the morning golden hour lasts until about 8:27 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Big Bend National Park?
Sunrise azimuth ranges from about 62° in June to 117° in December; sunset ranges from 298° to 244°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Big Bend National Park?
Yes — the core is visible from February to October on moonless nights. The estimated sky quality is Bortle 1 (excellent dark-sky site).
Do you need a permit to photograph at Big Bend National Park?
Personal still photography needs no permit in National Park Service areas unless you use models, sets or props, enter closed areas, or the shoot creates extra costs for the park. Drones are prohibited.
How far is Big Bend National Park from Alpine?
About 130 km (80 mi) in a straight line; driving distance is usually longer, especially in mountain terrain.

Sources

Location data: DarkSky International (via 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.