Located in Washington County, Oregon, Tualatin River National Wildlife Refuge is a national wildlife refuge. The nearest town is King City, about 1.6 km (1.0 mi) away (Tualatin River National Wildlife Refuge lies SW of town).
The Tualatin River National Wildlife Refuge is a 1,856 acres (751 ha) wetlands and lowlands sanctuary in the northwestern part of the U.S. state of Oregon. Established in 1992 and opened to the public in 2006, it is managed by the United States Fish and Wildlife Service. Located in southeastern Washington County, 15 miles (24 km) southwest of Portland, the refuge is bordered by Sherwood, Tualatin and Tigard. A newer area, extending into northern Yamhill County, is located further west near the city of Gaston surrounding the former Wapato Lake.From the Wikipedia article “Tualatin River National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Tualatin River National Wildlife Refuge 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) | 7:15 AM | 89° E | 7:24 PM | 271° W | 45° | 12h 09m |
| June solstice (Jun 21) | 5:24 AM | 55° NE | 9:04 PM | 306° NW | 68° | 15h 40m |
| September equinox (Sep 22) | 6:59 AM | 89° E | 7:11 PM | 271° W | 45° | 12h 11m |
| December solstice (Dec 21) | 7:49 AM | 124° ESE | 4:32 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
Wildlife is most active in the first and last two hours of daylight — exactly when the light is warmest.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 7:15 AM | 7:48 AM | 8:35 AM | 4:08 PM | 4:55 PM | 5:28 PM | 9h 07m |
| February | 6:43 AM | 7:14 AM | 7:56 AM | 4:57 PM | 5:39 PM | 6:09 PM | 10h 25m |
| March | 6:55 AM | 7:25 AM | 8:04 AM | 6:38 PM | 7:17 PM | 7:47 PM | 11h 53m |
| April | 5:56 AM | 6:27 AM | 7:06 AM | 7:18 PM | 7:57 PM | 8:28 PM | 13h 31m |
| May | 5:07 AM | 5:42 AM | 6:25 AM | 7:52 PM | 8:35 PM | 9:10 PM | 14h 53m |
| June | 4:46 AM | 5:23 AM | 6:09 AM | 8:16 PM | 9:02 PM | 9:40 PM | 15h 39m |
| July | 5:02 AM | 5:38 AM | 6:23 AM | 8:13 PM | 8:58 PM | 9:34 PM | 15h 19m |
| August | 5:41 AM | 6:13 AM | 6:54 AM | 7:39 PM | 8:20 PM | 8:53 PM | 14h 07m |
| September | 6:21 AM | 6:51 AM | 7:30 AM | 6:45 PM | 7:24 PM | 7:54 PM | 12h 34m |
| October | 6:58 AM | 7:28 AM | 8:08 AM | 5:47 PM | 6:27 PM | 6:57 PM | 10h 59m |
| November | 6:39 AM | 7:11 AM | 7:56 AM | 3:58 PM | 4:43 PM | 5:15 PM | 9h 32m |
| December | 7:11 AM | 7:45 AM | 8:34 AM | 3:40 PM | 4:30 PM | 5:04 PM | 8h 45m |
Local time (America/Los Angeles), 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 Tualatin River National Wildlife Refuge, the Milky Way core is visible in a dark sky from April through August. June gives the longest window (about 3.0 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 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 | — | -4° | — |
| February | Below 10° in darkness | — | 7° | — |
| March | 5:16 AM – 5:36 AM | 0.3 | 12° | SSE → SSE |
| April | 3:16 AM – 4:26 AM | 1.2 | 15° | SSE → SSE |
| May | 1:16 AM – 3:26 AM | 2.2 | 16° | SSE → S |
| June | 11:39 PM – 2:39 AM | 3.0 | 16° | SSE → SSW |
| July | 11:22 PM – 1:22 AM | 2.0 | 16° | S → SSW |
| August | 10:17 PM – 11:27 PM | 1.2 | 14° | SSW → SSW |
| September | 9:06 PM – 9:26 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: 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 ≈ 18.67 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 July as the clearest month (about 39% average cloud cover) and December as the cloudiest (80%). August is the warmest month and December 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 | 62 | 66 | 74 | 84 | 93 | 100 | 105 | 104 | 101 | 87 | 67 | 61 |
| Low °F | 8 | 15 | 22 | 27 | 33 | 39 | 45 | 44 | 36 | 24 | 15 | 10 |
| Precip. (in) | 8.4 | 6.1 | 6.8 | 4.8 | 3.1 | 2.2 | 0.4 | 0.7 | 2.3 | 5.3 | 8.6 | 9.7 |
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 national wildlife refuge
- Use auto-loop roads as mobile blinds; animals often tolerate vehicles more than people on foot.
- Stay on designated routes and keep a respectful distance — if an animal changes behavior, you are too close.
- A 400–600 mm lens (or a crop body) is the usual tool for birds.
- Fast shutter speeds (1/2000 s+) freeze wingbeats; raise ISO rather than lose the shot.
- Migration peaks bring the largest concentrations — see the birding calendar for this state.
- Scout in daylight if you plan to shoot at night or before sunrise.
Season: Spring and autumn migration are the highlights; winter brings waterfowl to many southern refuges.
Suggested gear: Telephoto lens (400 mm+), Bean bag for car window, Binoculars. 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 40 km of Tualatin River National Wildlife Refuge, closest first.
Mountain Peak
Mountain Peak
Botanical Garden
State Park
State Park
Botanical Garden
Ghost Town
Scenic Viewpoint
WaterfallFAQ
When is the best time to photograph Tualatin River National Wildlife Refuge?
What time is golden hour at Tualatin River National Wildlife Refuge?
Where does the sun rise and set at Tualatin River National Wildlife Refuge?
Can you see the Milky Way from Tualatin River National Wildlife Refuge?
Do you need a permit to photograph at Tualatin River National Wildlife Refuge?
How far is Tualatin River National Wildlife Refuge from King City?
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.