When is the best time to hike the Mount Rinjani Trek?

Best time to hike the Mount Rinjani Trek

Best: May–September. Also good: October.

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BestAlso goodPossibleNot recommended

The Mount Rinjani Trek is 26 km long, in 4 stages. Below is the average weather for every month at about 1,728 m, the middle height of the trail (598–2,632 m), from 10 years of daily data (2015–2024).

Weather month by month

Month	High °C	Low °C	Rain mm	Rain days	Daylight h
January	19°	15°	287	28	12.6
February	19°	15°	249	26	12.4
March	19°	15°	221	27	12.2
April	20°	15°	119	18	11.9
May	19°	15°	43	9	11.7
June	19°	14°	46	9	11.6
July	19°	13°	24	5	11.7
August	20°	13°	12	3	11.8
September	21°	14°	34	5	12.1
October	22°	15°	73	10	12.3
November	21°	16°	175	21	12.5
December	20°	16°	268	28	12.6

Higher up it is colder: about 6 °C less for every 1,000 m of height. The highest point of the trail is 2,632 m.

Season notes from our guide

The park is closed every year from 1 January to 31 March for the rainy season; in 2026 tickets went on sale on 6 March and the trails reopened on 1 April. The drier months from about May to October are the best time, and July to September is the busiest. In the dry season fire is the main risk: in September 2026 new bookings were paused, and a fire that started on 22 September near Torean closed the Senaru route until 3 October. Check the eRinjani app and the park's notices before you book and again before you travel. Nights at the camps and on the summit are cold and windy all year.

Stages, map, elevation profile, places to stay and emergency help, free.

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Best time for other trails

Weather: NASA POWER (MERRA-2 reanalysis), daily values 2015–2024 near -8.39, 116.42, adjusted to 1,728 m. Rain days: days with at least 1 mm. Daylight: sunrise to sunset on the 15th of the month.