Sutter National Wildlife Refuge is a national wildlife refuge in Sutter County, California. It sits roughly 8.6 km (5.3 mi) S of Sutter.
Sutter National Wildlife Refuge, the southernmost refuge in the Sacramento National Wildlife Refuge Complex, is located in the Sacramento Valley of California, about 50 miles (80 km) north of the metropolitan area of Sacramento. The refuge consists of about 2,600 acres (11 km2), consisting primarily of wetland impoundments with some riparian and grassland habitat. About 80 percent of the refuge is located in the Sutter Bypass, a floodwater bypass from the Sacramento River that floods at least once a year and may cover portions of the refuge with up to 12 feet (3.7 m) of water. Sutter Refuge typically supports wintering populations of more than 175,000 ducks and 50,000 geese. The mixed riparian forest habitat on the refuge is important for breeding and migrating passerine birds, and supports a large heron/egret rookery. The refuge provides habitat for several Federal and State...From the Wikipedia article “Sutter National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Sutter National Wildlife Refuge the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 120° (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) | 7:11 AM | 90° E | 7:19 PM | 271° W | 51° | 12h 08m |
| June solstice (Jun 21) | 5:42 AM | 59° ENE | 8:37 PM | 302° WNW | 74° | 14h 55m |
| September equinox (Sep 22) | 6:55 AM | 89° E | 7:06 PM | 271° W | 51° | 12h 10m |
| December solstice (Dec 21) | 7:23 AM | 120° ESE | 4:48 PM | 240° WSW | 27° | 9h 25m |
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 | 6:56 AM | 7:25 AM | 8:06 AM | 4:28 PM | 5:09 PM | 5:38 PM | 9h 44m |
| February | 6:32 AM | 7:00 AM | 7:37 AM | 5:08 PM | 5:45 PM | 6:12 PM | 10h 45m |
| March | 6:53 AM | 7:19 AM | 7:55 AM | 6:39 PM | 7:14 PM | 7:41 PM | 11h 55m |
| April | 6:03 AM | 6:31 AM | 7:07 AM | 7:09 PM | 7:44 PM | 8:12 PM | 13h 14m |
| May | 5:25 AM | 5:55 AM | 6:33 AM | 7:36 PM | 8:14 PM | 8:44 PM | 14h 19m |
| June | 5:09 AM | 5:41 AM | 6:21 AM | 7:55 PM | 8:35 PM | 9:08 PM | 14h 54m |
| July | 5:23 AM | 5:54 AM | 6:33 AM | 7:54 PM | 8:33 PM | 9:04 PM | 14h 39m |
| August | 5:53 AM | 6:21 AM | 6:58 AM | 7:27 PM | 8:04 PM | 8:32 PM | 13h 42m |
| September | 6:22 AM | 6:49 AM | 7:24 AM | 6:42 PM | 7:17 PM | 7:44 PM | 12h 28m |
| October | 6:50 AM | 7:17 AM | 7:53 AM | 5:53 PM | 6:30 PM | 6:57 PM | 11h 12m |
| November | 6:22 AM | 6:51 AM | 7:30 AM | 4:15 PM | 4:54 PM | 5:23 PM | 10h 03m |
| December | 6:50 AM | 7:20 AM | 8:02 AM | 4:04 PM | 4:46 PM | 5:16 PM | 9h 26m |
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 Sutter National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.0 hours on a moonless night), and the core peaks around 22° above the southern horizon. Our light-pollution model puts the sky at about Bortle 5 (suburban 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 | 5:14 AM – 5:24 AM | 0.2 | 12° | SE → SE |
| March | 4:23 AM – 5:43 AM | 1.3 | 19° | SE → SSE |
| April | 2:19 AM – 4:49 AM | 2.5 | 22° | SE → S |
| May | 12:21 AM – 4:01 AM | 3.7 | 22° | SE → S |
| June | 10:34 PM – 3:34 AM | 5.0 | 22° | SE → SSW |
| July | 10:27 PM – 2:17 AM | 3.8 | 22° | SSE → SW |
| August | 9:43 PM – 12:13 AM | 2.5 | 22° | S → SW |
| September | 8:48 PM – 10:08 PM | 1.3 | 19° | SSW → SW |
| October | 7:58 PM – 8:08 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: 5 Bortle 5 — Suburban sky. The Milky Way is weak near the horizon and washed out overhead; long exposures pick up a sky glow. Modeled zenith brightness ≈ 20.43 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show July as the clearest month (about 10% average cloud cover) and December as the cloudiest (62%). July 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 | 74 | 74 | 79 | 84 | 100 | 108 | 109 | 106 | 108 | 99 | 85 | 69 |
| Low °F | 19 | 19 | 24 | 28 | 32 | 39 | 49 | 49 | 38 | 31 | 14 | 15 |
| Precip. (in) | 5.4 | 6.2 | 5.1 | 2.9 | 1.6 | 0.5 | 0.0 | 0.1 | 0.4 | 1.8 | 3.8 | 7.2 |
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 Sutter National Wildlife Refuge, closest first.
National Wildlife RefugeFAQ
When is the best time to photograph Sutter National Wildlife Refuge?
What time is golden hour at Sutter National Wildlife Refuge?
Where does the sun rise and set at Sutter National Wildlife Refuge?
Can you see the Milky Way from Sutter National Wildlife Refuge?
Do you need a permit to photograph at Sutter National Wildlife Refuge?
How far is Sutter National Wildlife Refuge from Sutter?
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.
