Northern Lights Forecast for Denali

Yes, from late fall to early spring. The National Park Service says the aurora can be seen periodically from the Denali area, and there is almost no artificial light around the entrance once the summer businesses close. The catch is timing: the park's summer season, mid-May to mid-September, mostly falls in the bright months, so a summer bus-tour visit rarely comes with an aurora. Late August and September are the overlap, and late winter has the long dark nights.

Yes, but only the entrance area is reachable by car. The park road is plowed to park headquarters at about mile 3 from the first big snowfall until spring, and, conditions permitting, to around mile 13 from mid-February. The Murie Science and Learning Center at mile 1.3 serves as the winter visitor center and lends snowshoes and ice grippers. There is no food for sale in the park, so bring your own from Healy or Fairbanks.

Healy, about 11 miles north of the park entrance. The hotels along the highway at the entrance itself are summer operations and close for the winter, while Healy has a few lodgings and restaurants open year-round. If you are equipped for it, one loop of Riley Creek Campground inside the entrance stays open all winter at no charge, with a vault toilet and no water.

By the Parks Highway or the train. The entrance at highway mile 237 is 120 miles south of Fairbanks and 240 miles north of Anchorage, about 2 and 4 to 5 hours in good conditions and longer on winter roads. The Alaska Railroad's Aurora Winter Train runs between the two cities on weekends from mid-September to mid-May and stops at Healy. Arrange a ride from the station ahead of time, since there is no public transport at the entrance in winter.

The aurora season in Denali runs from mid-August to late April, when the nights get dark. Your best chances are in September and October, and again in February and March, when the aurora shows on many clear nights. The longest nights, around 21 December, have about 15 hours of darkness.

No. From late May to late July the nights in Denali stay light. The aurora is still there, but the sky is too bright to see it.

In Denali, you usually need at least Kp 1 to have a reasonable chance of seeing the northern lights. Lower Kp can still bring a faint aurora display low on the northern horizon, but it is less common.

This is based on magnetic latitude, and Kp index is a global geomagnetic index, so treat it as a rule of thumb, not a location-specific guarantee.

Tonight, the NOAA Kp index forecast is around 1.4. That is around the usual Kp index threshold for Denali, so you might have a chance of seeing the aurora if the sky is clear and dark.