Gunung Merapi

Volcano Highly active stratovolcano near Yogyakarta, frequent eruptions

Gunung Merapi, an active volcano north of Yogyakarta, attracts attention for volcano viewpoints, guided jeep tours to lava-affected areas and nearby Central Java cultural sites.

Overview - Gunung Merapi is an active stratovolcano on the border between Central Java and the Special Region of Yogyakarta in Indonesia, rising to roughly 2,900 metres above sea level. It is one of Indonesia’s most active and closely monitored volcanoes.

What visitors find - The volcano attracts climbers, volcanology observers and day visitors who use established routes such as the Selo ascent and observation points like Kaliurang for panoramic views. Trekking to the crater rim is popular when the volcano is at a low alert level, but timescale and difficulty vary by route and local conditions.

What visitors find - Geological features visible on and near Merapi include lava domes, recent flow deposits and the broad ash-scoured slopes produced by frequent eruptions. Local guides, mountain huts and monitored trailheads support organized climbs and scientific visits when conditions permit.

History - Merapi has a long record of frequent eruptions recorded in the modern era and has repeatedly affected nearby settlements. Notably, a major eruption in 2010 produced deadly pyroclastic flows and large ash clouds that caused evacuations and infrastructure damage.

Location - The volcano sits about 25-30 kilometres north of the city of Yogyakarta on central Java, straddling provincial boundaries and rising from a densely populated volcanic plain. Surrounding terrain includes agricultural valleys and a ring of towns and observation points used by visitors and researchers.

  • Activity and access: An actively monitored volcano with frequent eruptive activity; access to upper slopes and the crater is routinely closed during periods of unrest.
  • 2010 eruption: The 2010 eruption produced large pyroclastic flows and ashfall that caused significant casualties and widespread disruption to nearby communities and air travel.

What to See #

  • Summit and crater: The summit area contains the active crater and lava domes that produce frequent pyroclastic flows during eruptions; direct access to the crater is often restricted for safety.
  • Selo climbing route: A southern foothill settlement and common departure point for climbers on the popular Selo route to the summit; it also hosts informal huts and guides.
  • Kaliurang viewpoint: A hillside tourist village on the southern slopes that offers viewpoints across the volcano and is a common place for short visits from Yogyakarta.
Gunung Merapi
Mount Merapi (Gunung Merapi), Central Java - active volcano near Yogyakarta, Indonesia
-7.5410, 110.4460

How to Get to Gunung Merapi #

Gunung Merapi is reached most easily from Yogyakarta. By car it’s roughly a 25-40 km drive north of Yogyakarta city center depending on your starting point - follow Jalan Kaliurang (the road toward Kaliurang/Magelang) to the southern access areas around Kaliurang, or continue north toward Magelang/Boyolali for access to Selo on the volcano’s north side. Public minibuses/vans run from Yogyakarta toward Kaliurang; from Kaliurang you can arrange a local jeep tour or a guide to reach viewing points on the slopes. Many climbers and guides start from Selo (Boyolali side), which is reached by road from Yogyakarta via the Yogya-Solo corridor and is a common trailhead for summit treks.

Tips for Visiting Gunung Merapi #

  • Always check the volcano’s current alert level with Indonesia’s PVMBG (Center for Volcanology) or local authorities before planning a visit - access and guided-tour availability change quickly when activity rises.
  • For sunrise treks aim to start from Selo (northern side) for the popular viewpoint climbs; if you want the lava-field/landscape experience instead, book a jeep 'lava tour' that runs from the Kaliurang/Sleman area.
  • Hire an experienced local guide or join an organized tour rather than going solo: guides know safe routes, current access limits, and will arrange transport/permits; midweek departures avoid the busiest tour days.

Best Time to Visit Gunung Merapi #

Best visited in the dry season (May-October) for safer, clearer trekking conditions - always check local volcano advisories before going.

Dry season (trekking season)
May-Oct · 5-20°C (varies strongly with altitude)
Drier trails and clearer views - the preferred window for climbs and hikes, though conditions depend on altitude.
Wet season
Nov-Apr · 5-20°C (varies strongly with altitude)
Frequent rain makes routes muddy and visibility poor; check local volcanic activity and access restrictions before planning.

Weather & Climate near Gunung Merapi #

Climate

Gunung Merapi's climate is classified as Oceanic - Oceanic climate with consistently warm temperatures year-round. Temperatures range from 6°C to 17°C. Heavy rainfall (2958 mm/year), wettest in December.

Air Quality: AQI 60 Moderate
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
39°
Warmest Month
16°
Coldest Month
Monthly Conditions

January

January is cool with muggy conditions (dew point 22°C). Heavy rain (428 mm) and mostly overcast skies.

51 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
88%
Humidity
Very Humid

Weather

428 mm
Rainfall
1.7 m/s
Wind
Calm
2.2
UV Index
Extreme
12.4h daylight

February

February is cool with muggy conditions (dew point 23°C). Heavy rain (399 mm) and mostly overcast skies.

51 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
89%
Humidity
Very Humid

Weather

399 mm
Rainfall
1.7 m/s
Wind
Calm
2.2
UV Index
Extreme
12.2h daylight

March

March is cool with muggy conditions (dew point 23°C). Heavy rain (426 mm) and mostly overcast skies.

51 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
89%
Humidity
Very Humid

Weather

426 mm
Rainfall
1.9 m/s
Wind
Calm
2.2
UV Index
Extreme
12.0h daylight

April

April is cool with muggy conditions (dew point 23°C). Heavy rain (309 mm) and mostly overcast skies.

53 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
88%
Humidity
Very Humid

Weather

309 mm
Rainfall
2.4 m/s
Wind
Calm
2.1
UV Index
Extreme
11.8h daylight

May

May is cool with muggy conditions (dew point 22°C). Significant rainfall (196 mm) and partly cloudy skies.

63 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
88%
Humidity
Very Humid

Weather

196 mm
Rainfall
2.1 m/s
Wind
Calm
1.9
UV Index
Very High
11.7h daylight

June

June is cool with highs of 16°C and lows of 7°C. Regular rainfall (95 mm) and partly cloudy skies.

69 Good

Comfort

12°
Feels Like Cool
12°C
Temperature
16°
86%
Humidity
Very Humid

Weather

95 mm
Rainfall
2.2 m/s
Wind
Calm
1.8
UV Index
Very High
11.6h daylight

July

July is cool with highs of 15°C and lows of 7°C. Moderate rainfall (64 mm).

73 Very Good

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
81%
Humidity
Very Humid

Weather

64 mm
Rainfall
2.1 m/s
Wind
Calm
1.9
UV Index
Very High
11.6h daylight

August

August is the coolest month with highs of 15°C and lows of 6°C. Moderate rainfall (56 mm).

75 Very Good

Comfort

11°
Feels Like Cool
11°C
Temperature
15°
73%
Humidity
Very Humid

Weather

56 mm
Rainfall
2.3 m/s
Wind
Calm
2.2
UV Index
Extreme
11.8h daylight

September

September is cool with highs of 16°C and lows of 7°C. Moderate rainfall (69 mm).

73 Very Good

Comfort

11°
Feels Like Cool
11°C
Temperature
16°
68%
Humidity
Humid

Weather

69 mm
Rainfall
2.5 m/s
Wind
Calm
2.4
UV Index
Extreme
12.0h daylight

October

October is cool with highs of 17°C and lows of 8°C. Significant rainfall (164 mm) and partly cloudy skies.

59 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
72%
Humidity
Very Humid

Weather

164 mm
Rainfall
2.6 m/s
Wind
Calm
2.3
UV Index
Extreme
12.2h daylight

November

November is cool with highs of 17°C and lows of 8°C. Heavy rain (321 mm) and mostly overcast skies.

53 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
17°
82%
Humidity
Very Humid

Weather

321 mm
Rainfall
1.7 m/s
Wind
Calm
2.2
UV Index
Extreme
12.3h daylight

December

December is cool with muggy conditions (dew point 22°C). The wettest month with heavy rain (431 mm) and mostly overcast skies.

51 Acceptable

Comfort

13°
Feels Like Cool
13°C
Temperature
17°
87%
Humidity
Very Humid

Weather

431 mm
Rainfall
1.7 m/s
Wind
Calm
2.1
UV Index
Extreme
12.4h daylight

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