Gunung Arjuna-Lalijiwo Reserve

Nature Reserve Volcanic forest reserve on Java with biodiversity

East Java’s Gunung Arjuna-Lalijiwo Reserve centers on Mount Arjuno, offering volcanic ridgelines, montane forest and multi-day treks; climbers and local villagers use traditional footpaths to reach sunrise viewpoints.

Best Time to Visit Gunung Arjuna-Lalijiwo Reserve #

For hiking and wildlife viewing, go in the dry season (May-September) when trails are driest and conditions are most reliable.

Dry season (trekking season)

May-September · 10-25°C (varies with altitude)

Drier trails and clearer skies - the best time for hiking and wildlife viewing in the highlands.

Wet season

November-March · 15-25°C

Frequent heavy rain makes trails slippery and river crossings more hazardous; access is more difficult.

Shoulder months

April, October · 12-25°C

Transitional periods that can work well if you watch weather windows.

Weather & Climate near Gunung Arjuna-Lalijiwo Reserve #

Climate

Gunung Arjuna-Lalijiwo Reserve's climate is classified as Subtropical Highland (Dry Winter) - Subtropical Highland (Dry Winter) climate with consistently warm temperatures year-round. Temperatures range from 9°C to 20°C. Heavy rainfall (2141 mm/year), wettest in March with a pronounced dry season.

Air Quality: AQI 62 Moderate

Best Time to Visit

SeptemberAugustJuly

Temperature & Rainfall

Temperature Range

39°

Warmest Month

17°

Coldest Month

Monthly Conditions

January

January is cool with muggy conditions (dew point 23°C). Heavy rain (346 mm) and mostly overcast skies.

53 Acceptable

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 19°

87%

Humidity

Very Humid

Weather

346 mm

Rainfall

2.6 m/s

Wind

Calm

2.3

UV Index

Extreme

12.4h daylight

February

February is cool with muggy conditions (dew point 23°C). Heavy rain (325 mm) and mostly overcast skies.

53 Acceptable

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 19°

89%

Humidity

Very Humid

Weather

325 mm

Rainfall

2.3 m/s

Wind

Calm

2.3

UV Index

Extreme

12.2h daylight

March

March is cool with muggy conditions (dew point 23°C). The wettest month with heavy rain (348 mm) and mostly overcast skies.

55 Acceptable

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 20°

88%

Humidity

Very Humid

Weather

348 mm

Rainfall

2.0 m/s

Wind

Calm

2.3

UV Index

Extreme

12.0h daylight

April

April is cool with muggy conditions (dew point 23°C). Heavy rain (202 mm) and mostly overcast skies.

55 Acceptable

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 19°

86%

Humidity

Very Humid

Weather

202 mm

Rainfall

2.5 m/s

Wind

Calm

2.2

UV Index

Extreme

11.8h daylight

May

May is cool with muggy conditions (dew point 23°C). Significant rainfall (129 mm) and partly cloudy skies.

65 Good

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 19°

84%

Humidity

Very Humid

Weather

129 mm

Rainfall

2.0 m/s

Wind

Calm

1.9

UV Index

Very High

11.7h daylight

June

June is cool with highs of 19°C and lows of 10°C. Moderate rainfall (63 mm).

73 Very Good

Comfort

14°

Feels Like Cool

14°C

Temperature

10° – 19°

80%

Humidity

Very Humid

Weather

63 mm

Rainfall

2.5 m/s

Wind

Calm

1.8

UV Index

Very High

11.6h daylight

July

July is the coolest month with highs of 18°C and lows of 10°C. The driest month with just 20 mm.

79 Very Good

Comfort

14°

Feels Like Cool

14°C

Temperature

10° – 18°

73%

Humidity

Very Humid

Weather

20 mm

Rainfall

2.4 m/s

Wind

Calm

1.9

UV Index

Very High

11.6h daylight

August

August is the coolest month with highs of 18°C and lows of 9°C. Light rainfall and mostly sunny skies.

81 Excellent

Comfort

14°

Feels Like Cool

14°C

Temperature

9° – 18°

64%

Humidity

Humid

Weather

23 mm

Rainfall

2.3 m/s

Wind

Calm

2.2

UV Index

Extreme

11.8h daylight

September

September is cool with highs of 19°C and lows of 10°C. Light rainfall and mostly sunny skies.

82 Excellent

Comfort

14°

Feels Like Cool

14°C

Temperature

10° – 19°

58%

Humidity

Humid

Weather

28 mm

Rainfall

3.0 m/s

Wind

Light Breeze

2.5

UV Index

Extreme

12.0h daylight

October

October is cool with highs of 20°C and lows of 11°C. Regular rainfall (99 mm) and partly cloudy skies.

69 Good

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 20°

59%

Humidity

Humid

Weather

99 mm

Rainfall

2.5 m/s

Wind

Calm

2.4

UV Index

Extreme

12.2h daylight

November

November is cool with highs of 20°C and lows of 11°C. Heavy rain (229 mm) and mostly overcast skies.

55 Acceptable

Comfort

16°

Feels Like Cool

16°C

Temperature

11° – 20°

70%

Humidity

Humid

Weather

229 mm

Rainfall

2.5 m/s

Wind

Calm

2.3

UV Index

Extreme

12.3h daylight

December

December is cool with muggy conditions (dew point 23°C). Heavy rain (329 mm) and mostly overcast skies.

53 Acceptable

Comfort

15°

Feels Like Cool

15°C

Temperature

11° – 20°

83%

Humidity

Very Humid

Weather

329 mm

Rainfall

1.8 m/s

Wind

Calm

2.1

UV Index

Extreme

12.4h daylight

Nearby Attractions to Gunung Arjuna-Lalijiwo Reserve

Arjuno-Welirang

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Gunung Penanggungan

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Mount Penanggungan

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Badut Temple

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Mount Kawi

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Great Mosque of Malang

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Trowulan

Archaeological site of Majapahit-era capital in East Java

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Kidal Temple

Ancient Javanese temple in East Java

Temple 35.0 km