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42.4039° N87.8141° W179 mBortle 7Chicago

Illinois Beach Nature Preserve Dune and Swale Complex (Major)

Sand Dunes in Lake County, Illinois · 179 m (587 ft)

  • Bortle 7 sky
  • Sunset azimuth 238°–304°
  • Clearest: September
  • Milky Way Mar–Sep

Located in Lake County, Illinois, Illinois Beach Nature Preserve Dune and Swale Complex (Major) is a sand dunes at about 179 m (587 ft) above sea level. The nearest town is Beach Park, about 4.1 km (2.5 mi) away (Illinois Beach Nature Preserve Dune and Swale Complex (Major) lies ESE of town).

Elevation
179 m
587 ft
Nearest town
Beach Park
4.1 km (2.5 mi)
Sky darkness
Bortle 7
Suburban / urban transition
Clearest month
September
58% cloud
Milky Way peak
June
4.2 h window
Golden hour (Oct)
5:33 PM
sunset 6:11 PM

Light at Illinois Beach Nature Preserve Dune and Swale Complex (Major)

Live
Sunrise
7:10 AM
Sunset
6:03 PM
Golden hour AM
6:53 AM – 7:49 AM
Golden hour PM
5:24 PM – 6:20 PM
Blue hour AM
6:42 AM – 6:53 AM
Blue hour PM
6:20 PM – 6:31 PM
Full darkness
7:37 PM – 5:38 AM
Moon
Waxing Gibbous · 70%
Moonrise / set
3:24 PM / 1:03 AM
Day length
10h 52m
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 Illinois Beach Nature Preserve Dune and Swale Complex (Major) the sunrise point swings a long way through the year: about 57° (ENE) at the June solstice and 122° (ESE) in late December. Sunset moves from 304° (WNW) in June to 238° (WSW) in December, and the midday sun climbs to 71° in summer but only 24° in winter.

NESW60°30°
June solsticeEquinoxesDecember solstice
DateSunriseAzimuthSunsetAzimuthNoon sunDaylight
March equinox (Mar 20)6:55 AM90° E7:04 PM271° W47°12h 08m
June solstice (Jun 21)5:15 AM57° ENE8:32 PM304° WNW71°15h 17m
September equinox (Sep 22)6:39 AM89° E6:50 PM271° W48°12h 11m
December solstice (Dec 21)7:18 AM122° ESE4:22 PM238° WSW24°9h 04m

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
January6:48 AM7:19 AM8:02 AM4:00 PM4:44 PM5:15 PM9h 25m
February6:20 AM6:49 AM7:28 AM4:44 PM5:24 PM5:53 PM10h 35m
March6:36 AM7:04 AM7:41 AM6:21 PM6:58 PM7:26 PM11h 54m
April5:42 AM6:11 AM6:49 AM6:55 PM7:33 PM8:02 PM13h 22m
May4:58 AM5:31 AM6:11 AM7:26 PM8:06 PM8:39 PM14h 36m
June4:40 AM5:15 AM5:57 AM7:48 PM8:31 PM9:05 PM15h 16m
July4:55 AM5:28 AM6:10 AM7:46 PM8:27 PM9:01 PM14h 59m
August5:29 AM5:59 AM6:38 AM7:16 PM7:54 PM8:24 PM13h 55m
September6:04 AM6:32 AM7:09 AM6:26 PM7:03 PM7:31 PM12h 31m
October6:36 AM7:05 AM7:43 AM5:33 PM6:11 PM6:39 PM11h 06m
November6:13 AM6:43 AM7:25 AM3:49 PM4:31 PM5:01 PM9h 48m
December6:42 AM7:14 AM8:00 AM3:35 PM4:20 PM4:52 PM9h 06m

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 Illinois Beach Nature Preserve Dune and Swale Complex (Major), the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.2 hours on a moonless night), and the core peaks around 19° 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.

MonthCore visible (15th)HoursMax altitudeDirection
JanuaryBelow 10° in darkness—-3°—
FebruaryBelow 10° in darkness—9°—
March4:32 AM – 5:22 AM0.815°SSE → SSE
April2:24 AM – 4:24 AM2.018°SE → S
May12:35 AM – 3:25 AM2.819°SSE → S
June10:46 PM – 2:56 AM4.219°SSE → SSW
July10:35 PM – 1:35 AM3.019°S → SSW
August9:42 PM – 11:32 PM1.818°S → SSW
September8:39 PM – 9:29 PM0.815°SSW → SSW
OctoberBelow 10° in darkness—9°—
NovemberBelow 10° in darkness—-2°—
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: 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 ≈ 18.69 mag/arcsec². Aurora needs roughly Kp 5.5+ 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 58% average cloud cover) and May as the cloudiest (85%). August 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 °F505465687983918884756858
Low °F-9-2025344053564734191
Precip. (in)1.82.22.43.84.34.33.53.83.63.62.42.3

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.
  • 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 Illinois Beach Nature Preserve Dune and Swale Complex (Major), closest first.

FAQ

When is the best time to photograph Illinois Beach Nature Preserve Dune and Swale Complex (Major)?
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 Illinois Beach Nature Preserve Dune and Swale Complex (Major)?
In October the evening golden hour starts around 5:33 PM and ends after sunset at about 6:11 PM; the morning golden hour lasts until about 7:43 AM. Use the live widget above for exact times on any date.
Where does the sun rise and set at Illinois Beach Nature Preserve Dune and Swale Complex (Major)?
Sunrise azimuth ranges from about 57° in June to 122° in December; sunset ranges from 304° to 238°. See the sun-path diagram for the full arc.
Can you see the Milky Way from Illinois Beach Nature Preserve Dune and Swale Complex (Major)?
Yes — the core is visible from March to September on moonless nights. The estimated sky quality is Bortle 7 (suburban / urban transition).
Do you need a permit to photograph at Illinois Beach Nature Preserve Dune and Swale Complex (Major)?
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 Illinois Beach Nature Preserve Dune and Swale Complex (Major) from Beach Park?
About 4.1 km (2.5 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.