Kirwin National Wildlife Refuge is a national wildlife refuge in Phillips County, Kansas. The nearest town is Phillipsburg, about 17.5 km (10.9 mi) away (Kirwin National Wildlife Refuge lies SE of town).
Kirwin National Wildlife Refuge is a National Wildlife Refuge of the United States located in Kansas. It was established in 1954 for the conservation and management of wildlife resources, particularly migratory birds. The Kirwin Dam was built in the early 1950s near Kirwin, Kansas, and the reservoir created in the process provides water to the refuge.From the Wikipedia article “Kirwin National Wildlife Refuge”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At Kirwin National Wildlife Refuge the sunrise point swings a long way through the year: about 58° (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) | 7:41 AM | 90° E | 7:49 PM | 271° W | 50° | 12h 08m |
| June solstice (Jun 21) | 6:10 AM | 58° ENE | 9:09 PM | 302° WNW | 74° | 14h 59m |
| September equinox (Sep 22) | 7:25 AM | 89° E | 7:36 PM | 271° W | 51° | 12h 10m |
| December solstice (Dec 21) | 7:55 AM | 120° ESE | 5:16 PM | 240° WSW | 27° | 9h 22m |
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 | 7:27 AM | 7:56 AM | 8:38 AM | 4:56 PM | 5:37 PM | 6:07 PM | 9h 41m |
| February | 7:02 AM | 7:30 AM | 8:08 AM | 5:36 PM | 6:13 PM | 6:41 PM | 10h 43m |
| March | 7:22 AM | 7:49 AM | 8:25 AM | 7:08 PM | 7:44 PM | 8:11 PM | 11h 55m |
| April | 6:32 AM | 7:00 AM | 7:36 AM | 7:39 PM | 8:15 PM | 8:43 PM | 13h 15m |
| May | 5:53 AM | 6:23 AM | 7:02 AM | 8:06 PM | 8:45 PM | 9:15 PM | 14h 21m |
| June | 5:37 AM | 6:09 AM | 6:50 AM | 8:26 PM | 9:07 PM | 9:39 PM | 14h 57m |
| July | 5:51 AM | 6:22 AM | 7:02 AM | 8:25 PM | 9:04 PM | 9:36 PM | 14h 42m |
| August | 6:21 AM | 6:50 AM | 7:27 AM | 7:57 PM | 8:34 PM | 9:03 PM | 13h 45m |
| September | 6:52 AM | 7:19 AM | 7:54 AM | 7:12 PM | 7:47 PM | 8:14 PM | 12h 28m |
| October | 7:20 AM | 7:47 AM | 8:24 AM | 6:22 PM | 6:59 PM | 7:26 PM | 11h 12m |
| November | 6:53 AM | 7:22 AM | 8:02 AM | 4:43 PM | 5:23 PM | 5:51 PM | 10h 01m |
| December | 7:21 AM | 7:51 AM | 8:34 AM | 4:32 PM | 5:14 PM | 5:45 PM | 9h 23m |
Local time (America/Chicago), 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 Kirwin National Wildlife Refuge, 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 1 (excellent dark-sky site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -3° | — |
| February | 5:44 AM – 5:54 AM | 0.2 | 11° | SE → SE |
| March | 4:54 AM – 6:14 AM | 1.3 | 18° | SE → SSE |
| April | 2:52 AM – 5:22 AM | 2.5 | 21° | SE → S |
| May | 12:55 AM – 4:25 AM | 3.5 | 21° | SE → S |
| June | 11:09 PM – 3:59 AM | 4.8 | 21° | SE → SSW |
| July | 11:01 PM – 2:41 AM | 3.7 | 21° | S → SW |
| August | 10:16 PM – 12:36 AM | 2.3 | 21° | S → SW |
| September | 9:19 PM – 10:39 PM | 1.3 | 18° | SSW → SW |
| October | 8:29 PM – 8:39 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: 1 Bortle 1 — Excellent dark-sky site. The Milky Way casts faint shadows; zodiacal light and airglow are obvious. Modeled zenith brightness ≈ 21.9 mag/arcsec². Aurora needs roughly Kp 7.5+ 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 38% average cloud cover) and February as the cloudiest (61%). 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 | 71 | 81 | 88 | 95 | 102 | 116 | 111 | 107 | 108 | 95 | 84 | 69 |
| Low °F | -4 | -3 | -3 | 17 | 28 | 47 | 53 | 51 | 37 | 20 | 12 | -1 |
| Precip. (in) | 0.5 | 0.7 | 1.2 | 2.4 | 3.9 | 3.7 | 3.6 | 3.6 | 2.3 | 2.0 | 0.7 | 0.8 |
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
- 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.
- Tell someone where you're going in remote areas and carry the ten essentials.
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.
FAQ
When is the best time to photograph Kirwin National Wildlife Refuge?
What time is golden hour at Kirwin National Wildlife Refuge?
Where does the sun rise and set at Kirwin National Wildlife Refuge?
Can you see the Milky Way from Kirwin National Wildlife Refuge?
Do you need a permit to photograph at Kirwin National Wildlife Refuge?
How far is Kirwin National Wildlife Refuge from Phillipsburg?
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.