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Lee Siebert, Smithsonian Institution CC BY-SA 4.0 Wikimedia Commons

Iyang-Argapura

Mountain

Volcanic massif in East Java with steep ridges and forested highlands. Trekkers tackle multi‑day routes and visit remote mountain villages on organized hikes.

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In this guide

Iyang-Argapura essentials

Address: Iyang-Argapura (Mount Raung area), East Java, Indonesia
Admission: No formal entrance fee (mountain access); fees may apply for guided treks
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Things to Do
When to Go

Best Time to Visit Iyang-Argapura

Best climbed during the dry season (May-September) when trails are firmer and visibility improves.

Dry season
May -Sep · 15 -26°C (59 -79°F)
Clearer summit conditions and safer hiking; preferred season for ascents.
Wet season
Oct -Apr · 18 -28°C (64 -82°F)
Heavy rains, slippery trails and frequent thunderstorms; not recommended for casual hikers.

Weather & Climate near Iyang-Argapura

Climate

Iyang-Argapura's climate is classified as Subtropical Highland (Dry Winter) - Subtropical Highland (Dry Winter) climate with consistently warm temperatures year-round. Temperatures range from 5°C to 14°C. Abundant rainfall (1686 mm/year), wettest in February with a pronounced dry season.

Air Quality: AQI 59 Moderate
Best Time to Visit
AugustSeptemberJuly
Temperature & Rainfall
Temperature Range
37°
Warmest Month
14°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor 5° - 14° 8° 272 mm overcast 87% 2.8 m/s 2.4 extreme 12.4h
February Poor 5° - 14° 8° 294 mm overcast 89% 2.8 m/s 2.5 extreme 12.2h
March Poor 6° - 14° 9° 262 mm overcast 88% 2.7 m/s 2.5 extreme 12.0h
April Acceptable 6° - 13° 8° 142 mm partly cloudy 88% 2.7 m/s 2.3 extreme 11.8h
May Acceptable 6° - 14° 8° 102 mm partly cloudy 87% 2.9 m/s 2.0 extreme 11.7h
June Good 5° - 13° 7° 50 mm some cloud 86% 3.3 m/s 1.9 very high 11.6h
July Good 5° - 12° 7° 34 mm mostly sunny 83% 2.4 m/s 2.0 very high 11.6h
August Very Good 5° - 13° 7° 29 mm mostly sunny 77% 3.8 m/s 2.3 extreme 11.8h
September Very Good 5° - 13° 7° 25 mm mostly sunny 70% 3.6 m/s 2.6 extreme 12.0h
October Good 6° - 14° 8° 64 mm some cloud 67% 3.9 m/s 2.6 extreme 12.2h
November Acceptable 6° - 14° 8° 152 mm partly cloudy 73% 4.0 m/s 2.5 extreme 12.3h
December Poor 6° - 14° 8° 260 mm overcast 83% 3.1 m/s 2.3 extreme 12.4h
Getting There & Around

How to Get to Iyang-Argapura

Approach options depend on the chosen trailhead. The mountain lies within reach of towns like Probolinggo and Bondowoso; local minibuses and private drivers connect these towns to village trailheads. Hiring a local guide in a nearby village is recommended for navigation and logistics.

Tips for Visiting Iyang-Argapura

  • Hire an experienced local guide for forested sections and to navigate unmarked trails.
  • Start early to avoid afternoon tropical storms and to catch the cooler morning air.
  • Respect agricultural terraces and private forest areas on lower slopes - much land is actively farmed.