Located in Stanislaus County, California, San Joaquin River National Wildlife Refuge is a national wildlife refuge. The nearest town is Salida, about 13.5 km (8.4 mi) away (San Joaquin River National Wildlife Refuge lies SW of town).
The San Joaquin River National Wildlife Refuge is a protected area of along the San Joaquin River in the northern San Joaquin Valley, California. It is within San Joaquin County and Stanislaus County. It protects more than 7,000 acres (28 km2) of riparian woodlands, wetlands, and grasslands and hosts a diversity of native wildlife. Established in 1987 under the authority of the Endangered Species and Migratory Bird Conservation Acts, the refuge has also played a major role in the recovery of Aleutian cackling geese.From the Wikipedia article “San Joaquin River National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At San Joaquin River 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 301° (WNW) in June to 241° (WSW) in December, and the midday sun climbs to 76° in summer but only 29° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:09 AM | 90° E | 7:17 PM | 271° W | 52° | 12h 08m |
| June solstice (Jun 21) | 5:44 AM | 59° ENE | 8:30 PM | 301° WNW | 76° | 14h 46m |
| September equinox (Sep 22) | 6:53 AM | 89° E | 7:03 PM | 271° W | 53° | 12h 10m |
| December solstice (Dec 21) | 7:17 AM | 120° ESE | 4:50 PM | 241° WSW | 29° | 9h 33m |
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 | 6:51 AM | 7:19 AM | 7:59 AM | 4:31 PM | 5:10 PM | 5:39 PM | 9h 51m |
| February | 6:28 AM | 6:55 AM | 7:32 AM | 5:08 PM | 5:45 PM | 6:11 PM | 10h 49m |
| March | 6:51 AM | 7:17 AM | 7:51 AM | 6:38 PM | 7:12 PM | 7:39 PM | 11h 56m |
| April | 6:03 AM | 6:30 AM | 7:05 AM | 7:05 PM | 7:40 PM | 8:07 PM | 13h 10m |
| May | 5:27 AM | 5:56 AM | 6:33 AM | 7:31 PM | 8:08 PM | 8:37 PM | 14h 12m |
| June | 5:12 AM | 5:44 AM | 6:23 AM | 7:50 PM | 8:29 PM | 9:00 PM | 14h 45m |
| July | 5:26 AM | 5:56 AM | 6:34 AM | 7:49 PM | 8:27 PM | 8:57 PM | 14h 31m |
| August | 5:54 AM | 6:21 AM | 6:57 AM | 7:23 PM | 7:59 PM | 8:27 PM | 13h 37m |
| September | 6:21 AM | 6:48 AM | 7:22 AM | 6:40 PM | 7:14 PM | 7:41 PM | 12h 27m |
| October | 6:47 AM | 7:14 AM | 7:49 AM | 5:53 PM | 6:29 PM | 6:55 PM | 11h 15m |
| November | 6:18 AM | 6:46 AM | 7:24 AM | 4:17 PM | 4:55 PM | 5:23 PM | 10h 09m |
| December | 6:44 AM | 7:13 AM | 7:54 AM | 4:07 PM | 4:48 PM | 5:18 PM | 9h 35m |
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 San Joaquin River National Wildlife Refuge, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.3 hours on a moonless night), and the core peaks around 23° 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 | — | -1° | — |
| February | 5:03 AM – 5:23 AM | 0.3 | 13° | SE → SE |
| March | 4:10 AM – 5:40 AM | 1.5 | 20° | SE → SSE |
| April | 2:14 AM – 4:54 AM | 2.7 | 23° | SE → S |
| May | 12:13 AM – 4:03 AM | 3.8 | 23° | SE → S |
| June | 10:24 PM – 3:44 AM | 5.3 | 23° | SE → SW |
| July | 10:17 PM – 2:17 AM | 4.0 | 23° | SSE → SW |
| August | 9:37 PM – 12:17 AM | 2.7 | 23° | S → SW |
| September | 8:43 PM – 10:13 PM | 1.5 | 20° | SSW → SW |
| October | 7:56 PM – 8:16 PM | 0.3 | 13° | 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: 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 ≈ 20.02 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show July as the clearest month (about 12% average cloud cover) and January as the cloudiest (54%). 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 | 77 | 85 | 95 | 108 | 110 | 116 | 113 | 114 | 103 | 89 | 71 |
| Low °F | 22 | 27 | 29 | 32 | 39 | 43 | 49 | 50 | 46 | 38 | 27 | 24 |
| Precip. (in) | 2.9 | 3.1 | 2.4 | 1.3 | 0.5 | 0.1 | 0.0 | 0.0 | 0.1 | 0.8 | 1.7 | 3.6 |
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
- Migration peaks bring the largest concentrations — see the birding calendar for this state.
- 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.
- Shoot RAW to keep the most latitude for high-contrast sunrise and sunset scenes.
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 San Joaquin River National Wildlife Refuge, closest first.
Waterfall
Ghost Town
Ghost Town
State Park
CanyonCanyonFAQ
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Do you need a permit to photograph at San Joaquin River National Wildlife Refuge?
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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.