Located in Door County, Wisconsin, Plum Island Range rear light is a lighthouse. It is part of Green Bay National Wildlife Refuge. It sits roughly 49 km (31 mi) S of Escanaba. Its recorded tower height is about 20 m (66 ft). It dates from 1896. It is listed on the National Register of Historic Places.
Wikidata describes it as: “lighthouse in Plum Island, Wisconsin”.
Sunrise & sunset directions
At Plum Island Range rear light the sunrise point swings a long way through the year: about 55° (NE) at the June solstice and 124° (ESE) in late December. Sunset moves from 306° (NW) in June to 237° (WSW) in December, and the midday sun climbs to 68° in summer but only 21° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:52 AM | 90° E | 7:00 PM | 271° W | 45° | 12h 08m |
| June solstice (Jun 21) | 5:01 AM | 55° NE | 8:40 PM | 306° NW | 68° | 15h 40m |
| September equinox (Sep 22) | 6:36 AM | 89° E | 6:47 PM | 271° W | 45° | 12h 12m |
| December solstice (Dec 21) | 7:25 AM | 124° ESE | 4:08 PM | 237° WSW | 21° | 8h 43m |
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
Lighthouses work at both ends of the day: blue hour when the beacon is lit, and golden hour when white towers take on warm tones.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:51 AM | 7:24 AM | 8:11 AM | 3:45 PM | 4:31 PM | 5:04 PM | 9h 07m |
| February | 6:20 AM | 6:50 AM | 7:32 AM | 4:34 PM | 5:15 PM | 5:46 PM | 10h 25m |
| March | 6:32 AM | 7:01 AM | 7:40 AM | 6:15 PM | 6:54 PM | 7:23 PM | 11h 52m |
| April | 5:32 AM | 6:03 AM | 6:43 AM | 6:54 PM | 7:34 PM | 8:04 PM | 13h 30m |
| May | 4:44 AM | 5:19 AM | 6:02 AM | 7:29 PM | 8:11 PM | 8:46 PM | 14h 53m |
| June | 4:22 AM | 5:00 AM | 5:46 AM | 7:53 PM | 8:38 PM | 9:16 PM | 15h 38m |
| July | 4:39 AM | 5:15 AM | 5:59 AM | 7:50 PM | 8:34 PM | 9:10 PM | 15h 19m |
| August | 5:18 AM | 5:50 AM | 6:30 AM | 7:16 PM | 7:57 PM | 8:29 PM | 14h 07m |
| September | 5:57 AM | 6:27 AM | 7:06 AM | 6:22 PM | 7:01 PM | 7:31 PM | 12h 34m |
| October | 6:35 AM | 7:04 AM | 7:45 AM | 5:24 PM | 6:04 PM | 6:34 PM | 11h 00m |
| November | 6:15 AM | 6:47 AM | 7:32 AM | 3:35 PM | 4:20 PM | 4:52 PM | 9h 32m |
| December | 6:47 AM | 7:21 AM | 8:10 AM | 3:17 PM | 4:06 PM | 4:40 PM | 8h 45m |
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 Plum Island Range rear light, the Milky Way core is visible in a dark sky from April through August. June gives the longest window (about 3.2 hours on a moonless night), and the core peaks around 16° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -4° | — |
| February | Below 10° in darkness | — | 7° | — |
| March | 4:53 AM – 5:13 AM | 0.3 | 12° | SSE → SSE |
| April | 2:52 AM – 4:12 AM | 1.3 | 15° | SSE → S |
| May | 12:51 AM – 3:01 AM | 2.2 | 16° | SSE → S |
| June | 11:13 PM – 2:23 AM | 3.2 | 16° | SSE → SSW |
| July | 10:56 PM – 1:06 AM | 2.2 | 16° | S → SSW |
| August | 9:53 PM – 11:03 PM | 1.2 | 15° | SSW → SSW |
| September | 8:42 PM – 9:02 PM | 0.3 | 12° | SSW → SSW |
| October | Below 10° in darkness | — | 7° | — |
| November | Below 10° in darkness | — | -3° | — |
| December | Below 10° in darkness | — | -20° | — |
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: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.89 mag/arcsec². Aurora needs roughly Kp 4.0+ 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 61% average cloud cover) and November as the cloudiest (75%). August is the warmest month and February 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 | 43 | 42 | 52 | 53 | 63 | 73 | 79 | 79 | 74 | 68 | 59 | 52 |
| Low °F | -4 | -7 | -3 | 16 | 31 | 37 | 49 | 54 | 44 | 35 | 18 | 10 |
| Precip. (in) | 1.7 | 1.7 | 1.9 | 3.1 | 3.4 | 3.4 | 2.8 | 2.9 | 3.6 | 4.1 | 2.8 | 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 lighthouse
- During blue hour, use 5–15 second exposures to capture the beam; check whether the light is still active.
- Shoot from the beach or a jetty to place the tower against open sky and sea.
- Stormy weather and crashing surf add drama; keep a safe distance from waves on rocks and piers.
- A telephoto from across a bay compresses the tower against cliffs or the moon.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
Season: Summer brings open towers and tours; autumn and winter offer storms, fewer crowds and lower sun angles.
Suggested gear: Tripod, Telephoto lens, ND filter for smooth water, Rain cover. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Permits, drones & access
Drones: Launching or landing drones on National Wildlife Refuge lands generally requires a special use permit from the refuge manager, and wildlife disturbance rules apply everywhere.
Nearby photo spots
Other locations within 25 km of Plum Island Range rear light, closest first.
Lighthouse
Lighthouse
National Wildlife Refuge
Lighthouse
Dark Sky Place
Sand Dunes
Wilderness Area
National Wildlife Refuge
State ParkFAQ
When is the best time to photograph Plum Island Range rear light?
What time is golden hour at Plum Island Range rear light?
Where does the sun rise and set at Plum Island Range rear light?
Can you see the Milky Way from Plum Island Range rear light?
Do you need a permit to photograph at Plum Island Range rear light?
How far is Plum Island Range rear light from Escanaba?
Sources
Location data: Wikidata. 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.