Bailey Arboretum is a botanical garden in Nassau County, New York. The nearest town is Locust Valley, about 1.6 km (1.0 mi) away (Bailey Arboretum lies NE of town).
Bailey Arboretum is a 42-acre (17 ha) arboretum located in Lattingtown, New York, a small village on the North Shore of Long Island. It opened to the public on Aug. 5, 1969 after being donated to Nassau County in 1968 by the heirs of Mr. and Mrs. Frank Bailey. Through an agreement with the Village of Lattingtown, admission to the arboretum was limited to 200 people at any one time.From the Wikipedia article “Bailey Arboretum”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Bailey Arboretum the sunrise point swings a long way through the year: about 58° (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 73° in summer but only 26° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 6:59 AM | 90° E | 7:07 PM | 271° W | 49° | 12h 08m |
| June solstice (Jun 21) | 5:23 AM | 58° ENE | 8:30 PM | 303° WNW | 73° | 15h 07m |
| September equinox (Sep 22) | 6:42 AM | 89° E | 6:53 PM | 271° W | 49° | 12h 11m |
| December solstice (Dec 21) | 7:16 AM | 121° ESE | 4:30 PM | 239° WSW | 26° | 9h 14m |
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
Gardens are best on bright overcast days or early mornings when dew is fresh and the wind is calm.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:47 AM | 7:17 AM | 8:00 AM | 4:09 PM | 4:51 PM | 5:21 PM | 9h 34m |
| February | 6:21 AM | 6:50 AM | 7:28 AM | 4:51 PM | 5:29 PM | 5:57 PM | 10h 39m |
| March | 6:40 AM | 7:07 AM | 7:43 AM | 6:25 PM | 7:01 PM | 7:29 PM | 11h 54m |
| April | 5:48 AM | 6:16 AM | 6:53 AM | 6:57 PM | 7:34 PM | 8:02 PM | 13h 18m |
| May | 5:07 AM | 5:38 AM | 6:17 AM | 7:26 PM | 8:05 PM | 8:37 PM | 14h 28m |
| June | 4:49 AM | 5:23 AM | 6:04 AM | 7:47 PM | 8:28 PM | 9:02 PM | 15h 06m |
| July | 5:03 AM | 5:36 AM | 6:16 AM | 7:45 PM | 8:26 PM | 8:58 PM | 14h 50m |
| August | 5:36 AM | 6:05 AM | 6:43 AM | 7:17 PM | 7:54 PM | 8:24 PM | 13h 49m |
| September | 6:08 AM | 6:36 AM | 7:12 AM | 6:29 PM | 7:05 PM | 7:33 PM | 12h 30m |
| October | 6:38 AM | 7:06 AM | 7:43 AM | 5:38 PM | 6:15 PM | 6:43 PM | 11h 09m |
| November | 6:13 AM | 6:42 AM | 7:23 AM | 3:57 PM | 4:37 PM | 5:07 PM | 9h 55m |
| December | 6:42 AM | 7:13 AM | 7:56 AM | 3:44 PM | 4:28 PM | 4:59 PM | 9h 15m |
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 Bailey Arboretum, 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.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:11 AM – 5:11 AM | 0.0 | 10° | SE → SE |
| March | 4:23 AM – 5:33 AM | 1.2 | 17° | SE → SSE |
| April | 2:22 AM – 4:32 AM | 2.2 | 20° | SE → S |
| May | 12:19 AM – 3:39 AM | 3.3 | 20° | SE → S |
| June | 10:36 PM – 3:06 AM | 4.5 | 20° | SSE → SSW |
| July | 10:27 PM – 1:47 AM | 3.3 | 20° | S → SW |
| August | 9:38 PM – 11:48 PM | 2.2 | 20° | S → SW |
| September | 8:39 PM – 9:49 PM | 1.2 | 17° | SSW → SW |
| October | 7:46 PM – 7:46 PM | 0.0 | 11° | SW → SW |
| November | Below 10° in darkness | — | -1° | — |
| December | Below 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 ≈ 18.28 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 48% average cloud cover) and December as the cloudiest (70%). 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 | 60 | 58 | 63 | 77 | 80 | 87 | 94 | 90 | 86 | 84 | 69 | 64 |
| Low °F | 8 | 6 | 13 | 28 | 37 | 49 | 59 | 60 | 51 | 38 | 24 | 13 |
| Precip. (in) | 3.8 | 4.1 | 4.4 | 4.3 | 3.8 | 4.5 | 4.4 | 4.4 | 3.8 | 4.8 | 4.1 | 5.1 |
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 botanical garden
- Seasonal exhibits (orchids, tulips, cherry blossoms) draw crowds — arrive at opening.
- Kaleidoscopic and abstract images are great for flower close-ups — try the online kaleidoscope tool.
- A macro lens or close-up filter opens a world of detail — try a shallow aperture against a soft background.
- Many gardens restrict tripods or charge for photography; check the rules before you go.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Spring bulbs and blossoms, summer perennials and autumn color; glasshouses offer winter subjects.
Suggested gear: Macro lens, Diffuser, Small reflector. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Bailey Arboretum, closest first.
Botanical Garden
National Wildlife Refuge
Lighthouse
BeachBeach
Lighthouse
Beach
Lighthouse
State ParkFAQ
When is the best time to photograph Bailey Arboretum?
What time is golden hour at Bailey Arboretum?
Where does the sun rise and set at Bailey Arboretum?
Can you see the Milky Way from Bailey Arboretum?
Do you need a permit to photograph at Bailey Arboretum?
How far is Bailey Arboretum from Locust Valley?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, 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.