モンスーン中にアッパー マスタングまたはドルポをトレッキングできますか?

迅速な答え

Yes, Upper Mustang and Dolpo can both be trekked during the monsoon, and they are the only two major Nepal trekking regions where monsoon is the primary season. Both sit in the Himalayan rain shadow, where annual rainfall is below 300 mm. Upper Mustang receives 80 percent of its traffic between June and September. Upper Dolpo receives 70 percent. The monsoon months offer the best trail conditions, the greenest high pastures, and the clearest festival windows. The trade-off is flight unreliability and afternoon cloud cover.

詳細な内訳

Upper Mustang sits north of the Annapurna and Dhaulagiri ranges, in the rain shadow. The capital, Lo Manthang, sits at 3,840 m. Annual rainfall is 150 to 200 mm, compared to 4,000 mm on the south side of the Annapurnas. The trek starts at Jomsom 2,720 m, follows the Kali Gandaki valley north, and reaches Lo Manthang 3,840 m. The total distance is 100 km over 10 to 14 days.

Upper Dolpo sits behind the Dhaulagiri range, in the same rain shadow. The trek starts at Juphal 2,485 m, climbs to Shey Phoksundo Lake 3,612 m, and crosses passes at 5,360 m. Annual rainfall is 200 to 300 mm, slightly higher than Mustang. The total distance is 140 km over 18 to 24 days.

In monsoon, both regions see their best conditions. The high pastures turn green, the yaks come up to graze, and the wildflowers bloom. The skies are clear in the morning, with afternoon cumulus build-up that rarely produces rain. The temperature at Lo Manthang in July ranges from 5 to 22 degrees Celsius.

For a nature photographer, monsoon offers the strongest shoots of the year. The morning light on Lo Manthang's white-washed walls is sharp from 6:30 to 8:30 a.m. The wildflower meadows at 4,000 m peak in mid-July. The Tiji Festival in Lo Manthang usually falls in May or June and the Yartung Horse Festival in August.

コスト/コンポーネントの内訳

答えに影響するもの

Three factors shape the monsoon trek decision. The first is flight reliability. Jomsom flights cancel 30 percent of the time in monsoon due to wind, and Juphal flights cancel 20 percent due to cloud. Build 2 buffer days. The second is permit cost. Upper Mustang is $500 for 10 days, Upper Dolpo is $500 for 14 days. These are the highest permit fees in Nepal. The third is route choice. Lower Mustang is permit-free for foreigners but does not reach Lo Manthang. Upper Dolpo is the only way to see Shey Phoksundo Lake.

予約のヒント

Book your Jomsom flight 60 days in advance for the Tiji Festival in May and June. Carry a backup plan to fly to Pokhara and drive to Jomsom by jeep, since flights cancel. For Dolpo, book through a Dolpo specialist agency in Nepalgunj, since permits require a registered guide. Carry cash, since there are no ATMs in Mustang or Dolpo. Book a guesthouse inside Lo Manthang's walls, since outside guesthouses are basic. For photography, carry a polarising filter for the strong high-altitude light and a wide-angle lens for the canyon walls.

代替案との比較

For monsoon trekking in Nepal, the alternatives are limited. The Annapurna Circuit can be trekked in monsoon but leeches and cloud make it unpleasant. The Langtang Valley gets heavy rain. The Manaslu Circuit gets rain on the lower section. Upper Mustang and Upper Dolpo are the only two regions where monsoon is the primary season. Of the two, Mustang is easier logistically since it has a road, while Dolpo is more remote and more expensive.

避けるべきよくある間違い

The first mistake is booking only one Jomsom flight day. Build a 2-day buffer for cancellations. The second is underestimating the sun. The rain shadow means clear skies and UV intensity 40 percent higher than Kathmandu. Carry SPF 50 sunscreen and a wide-brim hat. The third mistake is skipping the festival dates. Tiji and Yartung are the cultural peaks of Mustang. The fourth mistake is treating Dolpo as a cheaper Mustang. Dolpo is more remote, requires more camping, and costs more per day.

フェイク

What is the best monsoon month for Mustang? July, for the Yartung Horse Festival and the green pastures.

Is Dolpo safe in August? Yes, but Juphal flights cancel 20 percent of the time. Build buffer days.

Why are permits so expensive? Both are restricted areas that require a special permit to preserve Tibetan culture.

Is mobile signal available in Mustang? Yes, Ncell works in Jomsom, Kagbeni, and Lo Manthang. Dolpo has no signal outside Dunai.

まとめ

Upper Mustang and Dolpo are the only two Nepal trekking regions where monsoon is the primary season. Both sit in the Himalayan rain shadow with under 300 mm of annual rainfall. Mustang is easier logistically and best in July. Dolpo is more remote and best in August and September. Permits cost $500 each. Build flight buffer days and carry sunscreen and cash.

結論

For 2027 to 2030 monsoon trekking in Nepal the rule is to pick the rain shadow. Upper Mustang and Upper Dolpo are the only viable options. Mustang delivers Tibetan culture, walled cities, and festivals. Dolpo delivers remote valleys, Phoksundo Lake, and high passes. Book permits early, build flight buffers, and pack for sun, not rain.