Nemours Mansion and Gardens is a botanical garden in New Castle County, Delaware. It sits roughly 3.5 km (2.2 mi) E of Greenville.
The Nemours Estate is a 200-acre (81 ha) country estate with jardin à la française formal gardens and a French neoclassical mansion in Wilmington, Delaware, United States. Built to resemble a French château, its 105 rooms on four floors occupy nearly 47,000 sq ft (4,400 m2). It shares the grounds at 1600 Rockland Road with the Nemours Children's Hospital, Delaware, and both are owned by the Nemours Foundation.From the Wikipedia article “Nemours Estate”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Nemours Mansion and Gardens 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 302° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 74° in summer but only 27° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:07 AM | 90° E | 7:14 PM | 271° W | 50° | 12h 08m |
| June solstice (Jun 21) | 5:35 AM | 58° ENE | 8:35 PM | 302° WNW | 74° | 14h 59m |
| September equinox (Sep 22) | 6:50 AM | 89° E | 7:01 PM | 271° W | 51° | 12h 11m |
| December solstice (Dec 21) | 7:21 AM | 121° ESE | 4:42 PM | 240° WSW | 27° | 9h 21m |
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 | 6:53 AM | 7:22 AM | 8:04 AM | 4:21 PM | 5:02 PM | 5:32 PM | 9h 40m |
| February | 6:28 AM | 6:56 AM | 7:33 AM | 5:01 PM | 5:39 PM | 6:06 PM | 10h 43m |
| March | 6:48 AM | 7:15 AM | 7:50 AM | 6:34 PM | 7:09 PM | 7:36 PM | 11h 55m |
| April | 5:57 AM | 6:25 AM | 7:02 AM | 7:04 PM | 7:40 PM | 8:08 PM | 13h 15m |
| May | 5:18 AM | 5:49 AM | 6:27 AM | 7:32 PM | 8:10 PM | 8:41 PM | 14h 22m |
| June | 5:02 AM | 5:34 AM | 6:15 AM | 7:52 PM | 8:33 PM | 9:05 PM | 14h 58m |
| July | 5:15 AM | 5:47 AM | 6:27 AM | 7:51 PM | 8:30 PM | 9:02 PM | 14h 43m |
| August | 5:46 AM | 6:15 AM | 6:52 AM | 7:23 PM | 8:00 PM | 8:29 PM | 13h 45m |
| September | 6:17 AM | 6:44 AM | 7:20 AM | 6:37 PM | 7:13 PM | 7:40 PM | 12h 29m |
| October | 6:46 AM | 7:13 AM | 7:50 AM | 5:48 PM | 6:24 PM | 6:52 PM | 11h 11m |
| November | 6:19 AM | 6:48 AM | 7:28 AM | 4:08 PM | 4:48 PM | 5:17 PM | 10h 00m |
| December | 6:47 AM | 7:17 AM | 8:00 AM | 3:57 PM | 4:39 PM | 5:10 PM | 9h 22m |
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 Nemours Mansion and Gardens, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 4.8 hours on a moonless night), and the core peaks around 21° 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.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -3° | — |
| February | 5:09 AM – 5:19 AM | 0.2 | 11° | SE → SE |
| March | 4:19 AM – 5:39 AM | 1.3 | 18° | SE → SSE |
| April | 2:16 AM – 4:46 AM | 2.5 | 21° | SE → S |
| May | 12:20 AM – 3:50 AM | 3.5 | 21° | SE → S |
| June | 10:34 PM – 3:24 AM | 4.8 | 21° | SE → SSW |
| July | 10:26 PM – 2:06 AM | 3.7 | 21° | S → SW |
| August | 9:41 PM – 12:01 AM | 2.3 | 21° | S → SW |
| September | 8:44 PM – 10:04 PM | 1.3 | 18° | SSW → SW |
| October | 7:54 PM – 8:04 PM | 0.2 | 12° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| 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: 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 ≈ 18.57 mag/arcsec². Aurora needs roughly Kp 7.0+ 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 50% average cloud cover) and December as the cloudiest (63%). 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 | 67 | 72 | 77 | 91 | 90 | 97 | 102 | 100 | 96 | 95 | 76 | 70 |
| Low °F | 0 | -1 | -3 | 25 | 35 | 46 | 55 | 54 | 43 | 30 | 21 | 10 |
| Precip. (in) | 2.9 | 3.1 | 3.6 | 3.7 | 3.7 | 4.8 | 4.5 | 4.4 | 4.2 | 4.2 | 3.5 | 3.9 |
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
- Many gardens restrict tripods or charge for photography; check the rules before you go.
- Backlit petals glow; position yourself so the sun is behind the flower.
- 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.
- Tell someone where you're going in remote areas and carry the ten essentials.
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 Nemours Mansion and Gardens, closest first.
State Park
Botanical Garden
State Park
State Park
Botanical Garden
Lighthouse
State Park
Lighthouse
State ParkFAQ
When is the best time to photograph Nemours Mansion and Gardens?
What time is golden hour at Nemours Mansion and Gardens?
Where does the sun rise and set at Nemours Mansion and Gardens?
Can you see the Milky Way from Nemours Mansion and Gardens?
Do you need a permit to photograph at Nemours Mansion and Gardens?
How far is Nemours Mansion and Gardens from Greenville?
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.