Crossover Island Light — a lighthouse in St. Lawrence County, New York — is a popular subject for landscape photographers. It sits roughly 21 km (13 mi) NNE of Alexandria Bay. It dates from 1848. It is listed on the National Register of Historic Places.
Crossover Island Light is a lighthouse on the Saint Lawrence River in New York state near the Canada–United States border. The lighthouse was established in 1848 and the last tower was first lit in 1882. The lighthouse was deactivated in 1941. The foundation is stone molehead and the lighthouse is made out of cast iron with brick and wood lining. The tower is a white conical tower with a red lantern. The original lens was a sixth-order Fresnel lens. The lighthouse was added to the National Register of Historic Places as Crossover Island Light Station in 2007.From the Wikipedia article “Crossover Island Light”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Crossover Island Light the sunrise point swings a long way through the year: about 55° (NE) at the June solstice and 123° (ESE) in late December. Sunset moves from 305° (NW) in June to 237° (WSW) in December, and the midday sun climbs to 69° in summer but only 22° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:07 AM | 90° E | 7:16 PM | 271° W | 45° | 12h 08m |
| June solstice (Jun 21) | 5:19 AM | 55° NE | 8:52 PM | 305° NW | 69° | 15h 33m |
| September equinox (Sep 22) | 6:51 AM | 89° E | 7:03 PM | 271° W | 46° | 12h 12m |
| December solstice (Dec 21) | 7:37 AM | 123° ESE | 4:27 PM | 237° WSW | 22° | 8h 49m |
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 | 7:04 AM | 7:37 AM | 8:23 AM | 4:03 PM | 4:49 PM | 5:22 PM | 9h 12m |
| February | 6:34 AM | 7:04 AM | 7:45 AM | 4:51 PM | 5:32 PM | 6:02 PM | 10h 28m |
| March | 6:48 AM | 7:17 AM | 7:55 AM | 6:31 PM | 7:09 PM | 7:38 PM | 11h 53m |
| April | 5:50 AM | 6:20 AM | 6:59 AM | 7:09 PM | 7:48 PM | 8:18 PM | 13h 28m |
| May | 5:03 AM | 5:37 AM | 6:19 AM | 7:42 PM | 8:24 PM | 8:58 PM | 14h 48m |
| June | 4:42 AM | 5:19 AM | 6:03 AM | 8:06 PM | 8:50 PM | 9:27 PM | 15h 32m |
| July | 4:58 AM | 5:33 AM | 6:17 AM | 8:03 PM | 8:46 PM | 9:22 PM | 15h 13m |
| August | 5:35 AM | 6:07 AM | 6:47 AM | 7:30 PM | 8:10 PM | 8:42 PM | 14h 04m |
| September | 6:14 AM | 6:43 AM | 7:21 AM | 6:37 PM | 7:16 PM | 7:45 PM | 12h 33m |
| October | 6:49 AM | 7:19 AM | 7:58 AM | 5:41 PM | 6:20 PM | 6:50 PM | 11h 02m |
| November | 6:29 AM | 7:00 AM | 7:44 AM | 3:53 PM | 4:37 PM | 5:09 PM | 9h 37m |
| December | 7:00 AM | 7:34 AM | 8:22 AM | 3:37 PM | 4:25 PM | 4:58 PM | 8h 51m |
Local time (America/New York), 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 Crossover Island Light, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 3.5 hours on a moonless night), and the core peaks around 17° 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 | — | -3° | — |
| February | Below 10° in darkness | — | 7° | — |
| March | 4:56 AM – 5:36 AM | 0.7 | 13° | SSE → SSE |
| April | 2:54 AM – 4:24 AM | 1.5 | 16° | SSE → S |
| May | 1:00 AM – 3:20 AM | 2.3 | 17° | SSE → S |
| June | 11:18 PM – 2:48 AM | 3.5 | 17° | SSE → SSW |
| July | 11:04 PM – 1:24 AM | 2.3 | 17° | S → SSW |
| August | 10:04 PM – 11:24 PM | 1.3 | 16° | SSW → SSW |
| September | 8:55 PM – 9:25 PM | 0.5 | 13° | 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 ≈ 21.85 mag/arcsec². Aurora needs roughly Kp 4.5+ 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 53% average cloud cover) and December as the cloudiest (82%). 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 (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 59 | 60 | 77 | 81 | 90 | 92 | 96 | 96 | 95 | 82 | 71 | 63 |
| Low °F | -27 | -27 | -16 | 13 | 25 | 35 | 46 | 46 | 33 | 21 | 0 | -19 |
| Precip. (in) | 2.2 | 2.2 | 2.0 | 2.9 | 3.0 | 3.8 | 3.4 | 3.0 | 3.1 | 3.9 | 2.8 | 2.8 |
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.
Nearby photo spots
Other locations within 25 km of Crossover Island Light, closest first.
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When is the best time to photograph Crossover Island Light?
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How far is Crossover Island Light from Alexandria Bay?
Sources
Location data: 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.