eSIM for Hokkaido

Hokkaido: what to know before you go

Arriving

New Chitose (CTS) near Sapporo is the main airport. Hakodate, Asahikawa and Kushiro have smaller ones, and distances between them are long.

Skiing

Niseko, Furano and Rusutsu are the main resorts, with strong coverage in the villages and on the lifts. Backcountry skiing has weaker signal and extra risk.

Driving

A rental car needs an international driving permit from many countries. Winter driving is demanding, and a live forecast and map matter.

National parks

Shiretoko, Daisetsuzan and Akan have long stretches without signal. Download offline maps and tell someone your route.

How much data you need

A week of driving, maps and photos takes about 4 to 6 GB.

Written 24 October 2026. Opening rules, fees, prices at attractions and event dates change, so check the official site before you rely on them.

Hokkaido: when people go

28 November 2026 to May 2027: ski season

Niseko's Grand Hirafu plans to open on 28 November 2026 and close on 5 May 2027, depending on the snow, and some neighbouring areas plan to close earlier, in early to mid April. Snow decides the real dates, so check the resort's live status on your phone before booking transfers or lessons.

4 to 11 February 2027: Sapporo Snow Festival

The organisers have set the Sapporo Snow Festival for 4 to 11 February 2027, with sites at Odori Park, Susukino and Tsudome, and rooms and transport around the city are congested that week. Book early and keep your confirmations offline, since crowds at the main site can slow the mobile network.

November 2026 to April 2027: winter road closures

The Shiretoko Pass road (Route 334) closes every winter, usually from early November until spring. Check the road authority's live status and download offline maps before you set out, because ice and snow change what is open.

July 2027: lavender season in Furano

Lavender around Furano usually blooms from late June to early August and peaks in mid to late July, and on weekends the car parks at the farms can fill before noon. July is also inside the mountain season, when seasonal base stations on the high routes work (from mid April to mid November), though coverage in Daisetsuzan still varies a lot.

Japan eSIM 2026: prices, network and coverage

10 plans, from $2.49 (1 GB, 7 days) to $23.99 (50 GB, 30 days). Networks: KDDI/au 5G, SoftBank 5G, NTT docomo 5G, and Rakuten Mobile 5G.

Network

KDDI/au 5G, SoftBank 5G, NTT docomo 5G, Rakuten Mobile 5G

Top-up

Yes, from the app, on the same eSIM

Validity starts

At the first connection at your destination

Install by

Shown on your order. An eSIM that is never installed expires

Your number

Stays active, plans are data only

Hotspot

Uses the same plan data, no separate charge

After the daily allowance

Day passes slow down to 1 Mbps

Updated November 12, 2026

Questions about Hokkaido

Will I have signal on Hokkaido's roads?

Along main roads and in towns, yes. In national parks and on mountain passes it drops. Download offline maps for the whole route.

How much does an eSIM for Hokkaido cost?

Hokkaido uses the Japan plans, because an eSIM belongs to a country and not to a city. Plans start at $2.49 for 1 GB, valid for 7 days. There are 10 plans, from 1 GB to 50 GB, plus unlimited day passes.

Do I need a local SIM card in Hokkaido?

No. The eSIM is a SIM card in digital form: you install it from a QR code before you leave, and there is nothing to buy at the airport or swap in your phone.

How is it different from roaming in Hokkaido?

With roaming, your own carrier bills the data you use abroad, usually by the day or by the megabyte, at the prices of your plan. The eSIM is prepaid: you know the cost before you leave and nothing is added later. Keep data roaming off on your usual line, so it cannot charge you.

Which networks does the Hokkaido eSIM use?

Wigoo connects to KDDI/au, SoftBank, NTT docomo, and Rakuten Mobile, with 5G where it is available. Each plan lists the operators it uses.

Can I add more data?

Yes. You top up the same eSIM from the app, without installing a new one.

Do I keep my phone number?

Yes. Plans are data only, so your usual line stays active for calls and texts, and WhatsApp keeps working as always.

When do the validity days start?

Not when you buy and not when you install: the days start counting when the eSIM connects to a network at your destination for the first time. A 30 day plan gives you 30 days from that first connection.

How long do I have to install the eSIM?

An eSIM that is never installed expires. The "Install by" date is shown on your order, on the site and in the app, so you can buy ahead of your trip. Install it before that date, on Wi-Fi.

Can I use the eSIM as a hotspot?

Data used through a personal hotspot comes out of the same plan, and Wigoo does not charge it separately. A laptop uses far more data than a phone, so for work a day pass or a bigger plan is safer.

What happens when the data runs out?

Plans are prepaid, so there are no extra charges: when the data is used up, the connection stops until you add more from the app. Day passes give a daily allowance at full speed, then continue at reduced speed (1 Mbps) until the next day.

When should I install the eSIM?

Before you leave, on Wi-Fi. When you land, set the Wigoo line for mobile data and turn on data roaming for it.