Longmen Mountains

Mountains

Along Sichuan's eastern flank, the Longmen Mountains mark the rise toward the Tibetan Plateau; hikers come for rugged ridges, village trails and high-country views, while geologists note the Longmenshan fault that produced major seismic activity in 2008.

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In this guide

Longmen Mountains essentials

Country: China
Driest months: Dec-Feb
Pay in: Yuan Renminbi (¥)
Language: Chinese
Emergency: 110

Longmen Mountains at a Glance

When to Go

Best Time to Visit Longmen Mountains

Highland seasons (late spring to early autumn) are best for access and visibility; monsoon months bring rain and reduced trail safety.

Summer
June-August · 10-25°C (50-77°F depending on altitude)
Highest routes snow‑free; good for highland trekking though afternoon storms can occur.
Spring/Autumn
April-May and September-October · 5-20°C (41-68°F)
Clearer skies and stable weather for views; temperatures vary sharply with altitude.

Weather & Climate near Longmen Mountains

Climate

Longmen Mountains's climate is classified as Humid Subtropical (Dry Winter) - Humid Subtropical (Dry Winter) climate with warm summers (peaking in July) and cold winters (coldest in January). Temperatures range from -2°C to 26°C. Moderate rainfall (857 mm/year) with a pronounced dry season.

Air Quality: AQI 72 Moderate
Best Time to Visit
JuneJulyAugust
Temperature & Rainfall
Temperature Range
38°
Warmest Month
-9°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Acceptable -2° - 6° 0° 6 mm overcast 70% 1.7 m/s 0.5 low 10.1h
February Acceptable 0° - 7° 3° 8 mm overcast 71% 1.5 m/s 0.7 moderate 10.9h
March Acceptable 4° - 12° 6° 23 mm overcast 67% 2.1 m/s 0.9 moderate 11.9h
April Good 9° - 17° 13° 54 mm overcast 64% 1.9 m/s 1.3 high 12.9h
May Good 13° - 21° 17° 90 mm overcast 65% 1.8 m/s 1.6 very high 13.7h
June Good 16° - 24° 20° 115 mm overcast 70% 1.5 m/s 1.6 very high 14.1h
July Good 18° - 26° 22° 190 mm overcast 76% 1.6 m/s 1.6 very high 13.9h
August Good 17° - 26° 21° 160 mm overcast 78% 1.7 m/s 1.5 high 13.2h
September Acceptable 14° - 20° 17° 135 mm overcast 79% 1.5 m/s 1.1 high 12.2h
October Good 10° - 16° 13° 53 mm overcast 78% 1.3 m/s 0.8 moderate 11.2h
November Acceptable 5° - 11° 8° 18 mm overcast 74% 1.2 m/s 0.5 moderate 10.4h
December Acceptable 0° - 7° 2° 5 mm partly cloudy 70% 1.4 m/s 0.4 low 9.9h
Getting There & Around

How to Get to Longmen Mountains

Approaches depend on which part of the Longmen range is intended. The mountains are generally reached via Sichuan’s network of county roads from larger cities such as Chengdu (a several‑hour drive to foothill towns) or by regional bus routes to local towns; hire a local guide or driver for interior access and trailheads.

Tips for Visiting Longmen Mountains

  • If exploring the Longmen range, hire a guide familiar with local trails and seasonal weather; many paths are steep and poorly signposted.
  • Visit in late spring to catch rhododendrons and alpine flowers in the lower slopes if approaching from Sichuan's montane valleys.
  • Respect local temples and shrines - some are active religious sites, not tourism props.