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41.6125° N87.4530° W181 mBortle 8Chicago

Seidner Dune and Swale Nature Preserve (Minor)

Sand Dunes in Lake County, Indiana · 181 m (594 ft)

  • Bortle 8 sky
  • Sunset azimuth 239°–303°
  • Clearest: September
  • Milky Way Mar–Sep

Seidner Dune and Swale Nature Preserve (Minor) — a sand dunes in Lake County, Indiana at about 181 m (594 ft) above sea level — is a classic subject for landscape photographers. The nearest town is East Chicago, about 3.0 km (1.9 mi) away (Seidner Dune and Swale Nature Preserve (Minor) lies S of town).

Elevation
181 m
594 ft
Nearest town
East Chicago
3.0 km (1.9 mi)
Sky darkness
Bortle 8
City sky
Clearest month
September
46% cloud
Milky Way peak
June
4.5 h window
Golden hour (Oct)
5:32 PM
sunset 6:10 PM

Light at Seidner Dune and Swale Nature Preserve (Minor)

Live
Sunrise
7:08 AM
Sunset
6:02 PM
Golden hour AM
6:51 AM – 7:46 AM
Golden hour PM
5:24 PM – 6:20 PM
Blue hour AM
6:40 AM – 6:51 AM
Blue hour PM
6:20 PM – 6:31 PM
Full darkness
7:35 PM – 5:37 AM
Moon
Waxing Gibbous · 70%
Moonrise / set
3:21 PM / 1:03 AM
Day length
10h 54m
Sunrise azimuth
103°
Sunset azimuth
257°
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 Seidner Dune and Swale Nature Preserve (Minor) the sunrise point swings a long way through the year: about 57° (ENE) at the June solstice and 121° (ESE) in late December. Sunset moves from 303° (WNW) in June to 239° (WSW) in December, and the midday sun climbs to 72° in summer but only 25° in winter.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)6:54 AM90° E7:02 PM271° W48°12h 08m
June solstice (Jun 21)5:16 AM57° ENE8:28 PM303° WNW72°15h 12m
September equinox (Sep 22)6:38 AM89° E6:49 PM271° W49°12h 11m
December solstice (Dec 21)7:14 AM121° ESE4:23 PM239° WSW25°9h 09m

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

Dunes need low sun: ripples and ridgelines only appear when side-light casts shadows, so shoot within an hour of sunrise or sunset.

Month (15th)Blue hour startsSunriseGolden hour endsGolden hour startsSunsetBlue hour endsDaylight
January6:44 AM7:15 AM7:58 AM4:02 PM4:45 PM5:15 PM9h 30m
February6:18 AM6:46 AM7:25 AM4:45 PM5:24 PM5:52 PM10h 37m
March6:35 AM7:03 AM7:39 AM6:20 PM6:57 PM7:24 PM11h 54m
April5:42 AM6:11 AM6:48 AM6:53 PM7:30 PM7:59 PM13h 20m
May5:00 AM5:31 AM6:11 AM7:23 PM8:03 PM8:34 PM14h 31m
June4:42 AM5:16 AM5:58 AM7:44 PM8:26 PM9:00 PM15h 11m
July4:56 AM5:29 AM6:10 AM7:42 PM8:23 PM8:56 PM14h 54m
August5:29 AM5:59 AM6:37 AM7:13 PM7:51 PM8:21 PM13h 52m
September6:03 AM6:31 AM7:07 AM6:24 PM7:01 PM7:29 PM12h 30m
October6:34 AM7:02 AM7:40 AM5:32 PM6:10 PM6:38 PM11h 08m
November6:10 AM6:40 AM7:21 AM3:50 PM4:31 PM5:01 PM9h 51m
December6:39 AM7:10 AM7:55 AM3:37 PM4:21 PM4:53 PM9h 11m

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 Seidner Dune and Swale Nature Preserve (Minor), the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.5 hours on a moonless night), and the core peaks around 20° 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.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—-3°—
FebruaryBelow 10° in darkness—10°—
March4:19 AM – 5:19 AM1.016°SE → SSE
April2:20 AM – 4:20 AM2.019°SE → S
May12:18 AM – 3:28 AM3.220°SE → S
June10:36 PM – 3:06 AM4.520°SSE → SSW
July10:26 PM – 1:36 AM3.220°S → SW
August9:36 PM – 11:36 PM2.019°S → SW
September8:36 PM – 9:36 PM1.016°SSW → SW
October7:42 PM – 7:42 PM0.010°SW → SW
NovemberBelow 10° in darkness—-1°—
DecemberBelow 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: 8 Bortle 8 — City sky. Only bright constellations are visible; the sky glows orange or white. Modeled zenith brightness ≈ 18.35 mag/arcsec². Aurora needs roughly Kp 6.0+ to show low on the northern horizon here.

Weather & best season

Long-term NASA satellite data for this area show September as the clearest month (about 46% average cloud cover) and December as the cloudiest (73%). July 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 °F6264808092981039695867468
Low °F-24-15-82127364849382212-9
Precip. (in)1.92.32.43.74.34.23.94.13.23.62.42.3

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 sand dunes

  • A telephoto isolates S-curves and layered ridges.
  • Wind erases tracks overnight — mornings have the cleanest sand.
  • Protect gear from blowing sand; avoid changing lenses in the wind.
  • Sand surfaces get extremely hot in summer afternoons.
  • Walk along ridges rather than across faces to avoid leaving footprints in your future compositions.
  • Tell someone where you're going in remote areas and carry the ten essentials.

Season: Spring and autumn for comfortable temperatures; full moon nights give soft light on the sand.

Suggested gear: Telephoto lens, Lens blower, Sun protection, Water. Work out exposures with the depth of field, ND filter and NPF rule calculators.

Nearby photo spots

Other locations within 25 km of Seidner Dune and Swale Nature Preserve (Minor), closest first.

Campgrounds nearby (Recreation.gov)

FAQ

When is the best time to photograph Seidner Dune and Swale Nature Preserve (Minor)?
September 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. Spring and autumn for comfortable temperatures; full moon nights give soft light on the sand.
What time is golden hour at Seidner Dune and Swale Nature Preserve (Minor)?
In October the evening golden hour starts around 5:32 PM and ends after sunset at about 6:10 PM; the morning golden hour lasts until about 7:40 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Seidner Dune and Swale Nature Preserve (Minor)?
Sunrise azimuth ranges from about 57° in June to 121° in December; sunset ranges from 303° to 239°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Seidner Dune and Swale Nature Preserve (Minor)?
Yes — the core is visible from March to September on moonless nights. The estimated sky quality is Bortle 8 (city sky).
Do you need a permit to photograph at Seidner Dune and Swale Nature Preserve (Minor)?
Personal photography from public land rarely needs a permit. Commercial shoots, models, large groups and drones may require permission from the land manager — check before you go.
How far is Seidner Dune and Swale Nature Preserve (Minor) from East Chicago?
About 3.0 km (1.9 mi) in a straight line; driving distance is usually longer, especially in mountain terrain.

Sources

Location data: USGS GNIS / GeoNames. 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.