# When to Ride Wuling Month by Month, and What 3,275 m Means Where You Come From｜24EZGO

> At 3,275 m, Wuling stands higher than Japan's Norikura, Thailand's Doi Inthanon and the highest paved pass in the Alps. A month-by-month look at the three windows to avoid. Plum rains, typhoons and the icing season. And why the month is not actually what decides your ride.

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Guides · Cycling in Taiwan

# When to Ride Wuling Month by Month, and What 3,275 m Means Where You Come From

"Which month is best for Wuling?" is probably the most common question when planning this trip, but it really has two layers. The first is the mountain itself. At 3,275 m, Taiwan's highest road point has several stretches of the year that are simply not suitable, with the plum rains, the typhoons and the icing season each claiming a slice. The second layer gets discussed far less. The same 3,275 m means something completely different to a rider from Hong Kong than to one from Japan. This guide lays out both, then explains why what ultimately decides whether you ride is not the month you picked.

![A support van parked by the Hehuanshan junction signs in heavy fog, a rider taking a bottle from the crew](/images/gallery/g08.webp)

The same junction can go from clear to fogged in a couple of hours — the day decides the ride, not the month.

## How high 3,275 m feels depends on where you came from

Line up the highest paved roads riders can reach in each place and Wuling's position becomes concrete very quickly. Hong Kong's highest peak, Tai Mo Shan, stands at 957 m. But cyclists cannot actually reach the top, since everything above 930 m is a restricted zone and the road tops out at the gate around 930 m. Korea's highest paved pass, Manhangjae, is 1,330 m. Vietnam's highest paved pass, Ô Quy Hồ, is about 2,035 m (sources range from 2,035 to 2,073 m). Thailand's highest point, Doi Inthanon, is 2,565 m and paved the whole way. Japan's highest paved road point, Norikura, is 2,716 m. The highest paved pass in the Alps, the Col de l'Iseran, is 2,764 m.

In other words, apart from the special case of Spain's Pico Veleta, Wuling sits higher than every one of them. For a Hong Kong rider it is more than three times the height of home; for a Korean rider, two and a half times Manhangjae; and even for a Japanese rider who has already climbed Norikura, Wuling is roughly 559 m higher still. This gap is not a boast, its practical meaning is that the climbing experience you built at home may simply not cover anything above 3,000 m. Altitude sickness and hypothermia do not happen on the mountains you know. They can happen here.

## Three windows to avoid are plum rains, typhoons and ice

May and June are the plum rain season. High rainfall probability and thick mountain fog, and poor visibility is far more dangerous on the descent than on the climb. This period also coincides with the Hehuanshan rhododendron season, when Highway 14A between km 29 (Kunyang) and km 33.2 (Shimen Mountain) runs high-occupancy and volume control on weekends and holidays from 6 to 11 a.m., with traffic and crowds both at their peak. Many Wuling events are traditionally scheduled in these two months, but that is on the basis that a race has traffic control and support stations. An independently planned trip has no reason to join the crush.

July to September is typhoon season. A typhoon does not have to make a direct hit; the strong winds and heavy rain of an outer circulation are quite enough to close mountain roads, and closures can last several days. Even without a typhoon, afternoon thunderstorms in the mountains are frequent in this season, which effectively puts an uncertain window into every afternoon. December to February is the icing period, with the highest snowfall probability falling between late December and early February. When the road ices, the highway authority may impose a preemptive closure on Highway 14A from km 18 (Cuifeng) to km 41.5 (Dayuling), or restrict access to vehicles fitted with snow chains. And a bicycle cannot fit snow chains, which means riding during a closure is not "more dangerous," it is simply not possible.

## What is left falls in late spring and autumn

Subtract those three windows and what remains is late March to early May, and late September through November. In both stretches the road is usually dry, there is no icing concern, and the weather is relatively stable. Autumn adds the chance of a sea of clouds and good sunsets. If you can only pick one, around October is usually the best overall. The tail of typhoon season has passed and winter icing has not begun. Worth noting, this also matches what Korean cycling circles already believe about Wuling. The consensus there is that around the mid-autumn period is the right window, and that winter is difficult because of snow and ice on the shaded side.

Temperature is a separate calculation. Mountain temperatures run roughly 15 to 18°C below the lowlands. In summer the summit sits around 12 to 18°C by day and often drops below 10°C after dark; from December to February daytime averages are around 5°C or lower, with nights frequently below zero. So even if you pick September or October, it may still be 30°C on the plains at the start while the summit is in the teens. And once you add sweat from the climb, time spent stationary at the top, and the wind chill of a long descent, windproof and insulating layers are not optional. Plenty of riders make it up and then get cold on the way down, because they packed only for the climb.

## The day itself decides whether you ride

The months set out above are probabilities, not guarantees. October can still catch a late typhoon, March can still catch a cold front that ices the summit, and control notices are revised continuously against the forecast. What you should actually do is build the checking into your itinerary. Before departure, confirm the current notices from the highway authority and the Taroko National Park Headquarters covering Highway 14A and the eastern Central Cross-Island section, and then check the live cameras at Kunyang, the Hehuanshan visitor centre and Wuling Pavilion the night before and again at dawn. The value of a live camera is that it tells you directly whether the road surface is dry, wet or snow-covered right now. More reliable than any monthly statistic.

For the same reason, it is best not to schedule Wuling as a single fixed day. Leave one day of slack and treat it as insurance, so a closure or heavy fog can simply push the attempt back. The role of a support vehicle here is not to drive you to the summit; it is to give you a safe way out when the weather turns. If it is too cold at the top, you do not have to force a descent by bike. If conditions deteriorate, you can pull out partway. Supplies, warm layers and a spare wheelset do not all have to be carried up 3,000 metres on your back. If your schedule allows only one day and you have flown in from abroad, that insurance is worth putting into the budget from the start.

## FAQ

How does Wuling compare with the highest road back home?

Wuling is 3,275 m. That is about 2,345 m above the top of Hong Kong's Tai Mo Shan road (around 930 m), about 1,945 m above Korea's Manhangjae (1,330 m), about 1,240 m above Vietnam's Ô Quy Hồ (about 2,035 m), about 710 m above Thailand's Doi Inthanon (2,565 m), about 559 m above Japan's Norikura (2,716 m), and higher than the Alps' highest paved pass, the Col de l'Iseran (2,764 m). If all your climbing experience is below 2,000 m, this will be the first time you put out power above 3,000 m.

Which month of the year is best?

Overall, around October. Late March to early May and late September through November are both relatively stable, but October sits neatly between the end of typhoon season and the start of the icing period. What to avoid is the plum rains and rhododendron-season crowds in May and June, typhoons and afternoon thunderstorms from July to September, and the icing period from December to February. These are probabilities, though. The actual decision still comes down to the notices before departure and the road conditions on the day.

Can I ride when the road is iced?

No. When the road ices, the highway authority may impose a preemptive closure on the Cuifeng–Dayuling section of Highway 14A, or limit access to vehicles fitted with snow chains. And a bicycle cannot fit them. Even on a day with no formal closure, ice on the shaded side is not always visible, and on a descent, with high speed and a very small contact patch, the consequences of going down are nothing like they are in a car. If you want to see snow, go up by vehicle and move the ride itself to a day when the surface is dry.

What should I wear for a summer ascent?

Mountain temperatures run roughly 15 to 18°C below the lowlands. In summer the summit is around 12 to 18°C by day and often below 10°C after dark. Thirty degrees at the start does not mean the top will be comfortable. The real problem is the descent. You sweat on the climb, stop at the top for photos, then drop at speed for over an hour, and wind chill puts the felt temperature far below the actual reading. At minimum, bring a windproof jacket and a packable insulating layer; gloves and warm accessories for a long descent are worth having too. None of this has to be carried up on your back. It can travel in the support vehicle and be put on at the top.

## Sources

* [交通部中央氣象署（合歡山測站觀測資料）](https://www.cwa.gov.tw/V8/C/W/OBS%5FStation.html)
* [交通部公路局（雪季封閉公告）](https://www.thb.gov.tw/News%5FContent%5FTable.aspx?n=7839&sms=13275&s=264237)
* [交通部公路局（杜鵑花季高乘載管制）](https://www.thb.gov.tw/News%5FContent%5FTable.aspx?n=7839&sms=13275&s=268543)
* [太魯閣國家公園管理處（公路即時路況）](https://www.taroko.gov.tw/TAROKO%5FHighwayCondition.aspx?n=5401&sms=0)
* [乗鞍エコーライン（国土交通省 多言語解説）](https://www.mlit.go.jp/tagengo-db/common/001558572.pdf)
* [List of highest paved roads in Europe by country (Wikipedia)](https://en.wikipedia.org/wiki/List%5Fof%5Fhighest%5Fpaved%5Froads%5Fin%5FEurope%5Fby%5Fcountry)

Rules and road conditions change — always check the official announcements before you travel.

## Related guides

* [Xianshan KOM Guide｜Racing and Reaching Nanzhuang](/en/guides/nanzhuang-xianshan-kom/)
* [Wuling Hehuanshan Cycling｜Taiwan's Highest Road, 3,275m](/en/guides/wuling-hehuanshan-climb/)
* [What to Eat After Wuling: Qingjing Urn-Roasted Chicken](/en/guides/wuling-post-ride-food/)

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