Matanuska Glacier in October

Two seasons overlap in October

October is the month the Matanuska changes over. The park at Mile 102 of the Glenn Highway runs its own tours on a four-season calendar, and its autumn window runs from 20 September to 14 November. Winter starts on 15 November, give or take two weeks for the weather. So an October visit falls entirely inside autumn. The ice is still bare and the approach is still a walk, but the cold is already building on the glacier.

The practical upshot is simple. The ice is still bare, so you see the blue surface, the crevasses and the serac field. The walk is still a walk, across the moraine and onto the glacier, not the sled ride that winter visitors get. And the crowds have gone, because the summer-only operators have closed for the year.

The weather, with numbers

Nobody publishes official climate averages for the glacier itself, so the nearest reliable figures come from the NOAA stations in Anchorage and Palmer. In October, Anchorage averages a high of 42°F (5.6°C) and a low of 31°F (−0.7°C). Palmer, the last town before the climb up the valley, is almost identical by day and a couple of degrees colder at night. The glacier sits higher up the valley than either, and the wind off the ice makes it feel colder still, so plan for temperatures around freezing while you are out on it.

Snow is arriving too. Anchorage’s first measurable snowfall comes in mid-October in an average year, and the month averages about 5.6 inches (14 cm). The peaks along the Glenn Highway usually whiten earlier than that. On the ice itself, expect a patchwork: bare blue ice in the hollows and a skin of fresh snow on the flats.

Daylight is still generous

On 15 October the sun rises over Anchorage at 8:42 in the morning and sets at 6:46 in the evening, a little over ten hours of light. That is plenty for a full day from the city, and it is the main reason October is easier to plan than December. It is shrinking fast, though, by five and a half minutes a day, and by mid-November the day is down to about seven hours.

Which tours actually run in October

This is the part most October visitors get wrong. The cheapest way onto the glacier, NOVA’s $115 walk from its camp at Mile 96.5, is a summer operation. Its season runs from 1 June to 10 September, so by October it has closed. If you have read that the glacier costs $115 plus the gate fee, that price is not available this month.

What remains are the full-day tours from Anchorage and the park’s own guided tours at the gate.

From Anchorage: Matanuska Glacier Full-Day Tour is the one we would book. 907 Tours runs it year-round and lists it among its October-to-March departures. It is about ten hours door to door, with hotel pickup, all entry fees, safety gear, snacks and water included. In October you walk out to the ice. The snow-machine sleds this operator is known for only start in late November. It holds 4.8 out of 5 from 118 reviews on GetYourGuide. The same tour has 452 reviews on Viator:

Anchorage: Matanuska Glacier Hike with Transfers is the alternative if you want to be collected from an Airbnb rather than a hotel, or if you have not packed for the cold. Gloves and snow pants are handed out with the safety gear. The day is about eight hours.

Greatland Adventures runs separate summer and winter versions of its tour. Viator’s booking calendar shows the summer one bookable through 31 October and the winter one from 1 November. For an October date, that means the summer listing, which includes lunch:

If you have a car and would rather not join a day tour, the park’s own operator at Mile 102 runs guided tours all year. Its visitor page lists departures at 10am, 11am, 1pm and 2pm and a price of about $150 per adult with the gate fee included. That tour is not bookable through this site, and its own pages quote slightly different prices, so confirm with the park before you drive up.

Reasons to go in October

The glacier is quiet. Summer is the busy season at the most accessible glacier in the state, and by October the tour vans are thinner and the groups are smaller.

The ice is still on show. Until the freeze-up, which the park’s operator puts at around mid-November, you are walking on the same bare surface the summer photographs show, just with fewer people and a dusting of snow.

The light is better for photographs. The sun stays low all day, and cloud is common, and overcast light shows the blue in the ice better than harsh midday sun.

The northern lights are in season. Visit Anchorage gives the aurora season as September to April. A day tour gets you back to the city by early evening, so seeing them means a clear night away from Anchorage’s lights, either on a separate aurora tour or an overnight stay up the valley.

Reasons to hesitate

The autumn colour is mostly over. The Glenn Highway’s aspens and birches turn from late August through September, so an October drive shows bare branches and snow on the peaks, not gold.

It is a transition month on the ice. The park’s operator describes this period as the one where the side of the glacier used all summer gradually shuts down and the ice is tested before winter routes open. That is exactly why you go with a guide and not alone.

Services up the valley are closing. Sheep Mountain Lodge’s restaurant at Mile 113.5 shuts for the season in mid-September, so plan food around the stop your tour makes on the way. If you drive yourself, fill the tank in Palmer.

Driving yourself in October

The road is open and maintained, and in a dry October it is an easy drive. It can also bring the first snow and ice of the season, especially on the twisting section past Chickaloon. Studded tyres become legal on this stretch from 16 September, and Alaska’s 511 service posts road conditions and traffic cameras. If you are not comfortable on icy mountain roads, our winter driving comparison sets out the cost of taking the wheel against being driven.

What to pack for October

Dress for winter, not for autumn in the city. You want a warm insulated layer, a waterproof shell, a hat, gloves and sturdy, stiff-soled boots, because trainers do not grip on ice at any time of year. Sunglasses matter too, as low sun on ice is harsh. The full list is in our what to wear guide.

If you are travelling later in the autumn

November is when the switch happens: sleds, ice caves and a much shorter day. Our November guide covers the changeover, and the winter vs summer comparison explains what you gain and lose on each side of it. When you have picked a date, check October availability.