Northern lights in Dillingham, Alaska

At the head of Bristol Bay, Dillingham sees about 18.75 hours of midsummer daylight.

Dillingham

…

Checking tonight's sky…

See Dillingham sunrise & daylight times →

The next three nights

Geomagnetic activity (Kp) forecast for the selected town's dark hours. Kp runs 0–9; how much a town needs depends on its magnetic latitude. New to this? What the Kp index means, in plain words → Nights tagged “outlook” use NOAA’s 27-day outlook where the 3-day forecast doesn’t reach — whole-day values, so treat them as rougher estimates.

What Dillingham needs for a show

Whether aurora reaches a town is mostly a matter of magnetic latitude — distance from the magnetic pole, not the geographic one. Dillingham sits at magnetic latitude 58.5°, which puts it in the Kp 4 band: when the forecast Kp for the dark hours reaches about 4, the oval's southern edge reaches Dillingham and displays can appear low on the northern horizon. At Kp 6 or better, expect the band overhead at times. The same law draws the band on the homepage globe: the oval's edge at magnetic latitude 69 − 3×Kp.

Magnetic latitude58.5°
Kp needed (horizon show)About 4
Kp for a strong overhead showAbout 6+
Coordinates59.0397°N, 158.4575°W · Southwest

Kp is only one of four ingredients in the live call above: cloud cover over the dark hours, the town's actual darkness window, and moonlight all count too. A Kp 6 night under solid cloud is still a no — which is why the verdict, not the index, leads this page.

Dillingham’s aurora season

Dillingham has a real off-season: from about Apr 24 to Aug 17 (116 nights) the sun never dips 18° below the horizon, so it never gets truly dark and aurora can't be seen even when it's active. Outside that stretch, 249 nights in 2027 get a true-dark window.

Month (2027)True darknessTypical dark window, mid-month
JanuaryEvery night11 hr 58 min
FebruaryEvery night10 hr 4 min
MarchEvery night7 hr 33 min
April23 of 30 nightsAround the clock
MayNo true darkness—
JuneNo true darkness—
JulyNo true darkness—
August14 of 31 nights—
SeptemberEvery night6 hr 17 min
OctoberEvery night9 hr 17 min
NovemberEvery night11 hr 28 min
DecemberEvery night12 hr 30 min

True darkness = the sun below −18° (end of astronomical twilight), computed with the standard NOAA solar algorithm for Dillingham’s coordinates. The live call at the top of this page uses tonight's actual window, not these averages.

More Southwest towns tonight