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Silisili

Volcano

Samoa's highest peak on Savai'i Island, reached by multi-day hikes through rainforest and ridgelines. Experienced trekkers aim for summit views and encounters with remote village landscapes.

Silisili ApiaUpoluSavai'iSilisili
In this guide

Silisili essentials

Country: Samoa
Driest months: Jun-Aug
Pay in: Tala (T)
Language: Samoan

Silisili at a Glance

About Silisili

Silisili (Mount Silisili) is the highest mountain in Samoa, located on the island of Savaiʻi. The peak reaches approximately 1,858 metres and is the island chain’s highest point.

The route to the summit follows ridgelines through montane rainforest and cloud forest, and is known for steep, rugged terrain and muddy conditions during rain; the summit offers broad views across Savaiʻi when weather permits. The mountain is volcanic in origin and forms part of the island’s central highlands.

Silisili sits in the interior of Savaiʻi island and forms part of the island’s central ridge system; access is from villages on Savaiʻi with local guides commonly used for multi‑day ascents. The surrounding landscape is dominated by tropical forest and deeply incised valleys.

  • Elevation and trail conditions: The summit reaches about 1,858 metres and is the highest point in Samoa, reached by steep, often muddy trails that require good fitness and local guidance.
Things to Do
When to Go

Best Time to Visit Silisili

Visit Mount Silisili during Samoa's dry season (May-October) for more reliable trail conditions and safer trekking.

Dry season
May-October · 24-30°C
Better trail conditions and lower rainfall-preferred period for trekking to the summit.
Wet season
November-April · 24-30°C
Frequent heavy showers make trails slippery and stream crossings more hazardous.

Weather & Climate near Silisili

Climate

Silisili's climate is classified as Oceanic - Oceanic climate with consistently warm temperatures year-round. Temperatures range from 13°C to 21°C. Heavy rainfall (3009 mm/year), wettest in December.

Air Quality: AQI 13 Good
Temperature & Rainfall
Temperature Range
21°
Warmest Month
13°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 14° - 21° 18° 407 mm - - 4.4 m/s - -
February - 15° - 21° 18° 333 mm - - 4.4 m/s - -
March - 15° - 21° 18° 355 mm - - 4.2 m/s - -
April - 15° - 20° 17° 248 mm - - 4.5 m/s - -
May - 15° - 19° 17° 156 mm - - 5.5 m/s - -
June - 15° - 19° 17° 125 mm - - 7.1 m/s - -
July - 14° - 18° 16° 90 mm - - 7.0 m/s - -
August - 14° - 18° 16° 111 mm - - 6.7 m/s - -
September - 13° - 19° 16° 165 mm - - 5.9 m/s - -
October - 14° - 20° 17° 306 mm - - 4.9 m/s - -
November - 14° - 21° 17° 295 mm - - 4.3 m/s - -
December - 14° - 21° 18° 418 mm - - 4.6 m/s - -
Getting There & Around

How to Get to Silisili

Mount Silisili is on Savai’i island (Samoa). From international flights into Apia (Faleolo, Upolu) take the regular inter‑island ferry from Mulifanua to Salelologa on Savai’i. From Salelologa drive inland toward the north‑west of Savai’i (the village of Aopo is the common trailhead area) - the drive from Salelologa to Aopo is typically about one to two hours by road; from Aopo the ascent is a multi‑day hike requiring local guides.

Tips for Visiting Silisili

  • Aim for the dry season (roughly May-October) when trails on Savai'i are drier and river crossings are safer; wet weather can make interior tracks very slippery and slow going.
  • Arrange a local guide and village permission in advance-mountain access and overnight routes typically require coordination with local communities on Savai'i, and guided trips are recommended for route finding and safety.
  • Plan for a multi‑day trek (not a day hike); summit attempts usually involve camping or village‑based stays, so organise food and camping gear through a local operator rather than relying on ad hoc support on the island.