Lombok in April, May and June: Early Dry-Season Weather, the 2027 Holidays and Mount Rinjani

5 November 20266 November 2026

April to June is when Lombok moves from the rainy season into the dry season. In long-term averages for Mataram, the island’s capital, rainy days fall from 12 in April to 7 in May and 5 in June, and rainfall drops from 105 mm in April to 101 mm in May and 51 mm in June. There are about nine hours of sunshine a day in all three months, and the sea is 28 to 29 degrees.

In 2027 there are no public holidays in April, while May has a cluster of holidays and collective leave days. Mount Rinjani’s trails usually reopen on 1 April. For this guide we read the climate site weather2travel, the Indonesian State Secretariat’s 2027 holiday announcement and the state news agency Antara, among others, on 5 November 2026, and set out what affects trip planning.

This guide is for people planning Lombok or Sekotong in the shoulder months before the peak dry season, and anyone choosing a drier time to spend on the sea.

Information as of November 2026

What this article covers

✓Rain, temperature, sunshine and sea temperature from April to June (Mataram averages)
✓Public holidays and collective leave days, April to June 2027, and the May long weekend
✓When you can climb Mount Rinjani
✓Late April and early May
✓Spending time on the sea in Sekotong
✓Downsides, and who this season suits

In short

From April to June rain decreases and sunshine increases, making it easier to spend days on the water. April still has about 12 rainy days, and rainy days drop further through May and June. In 2027 holidays and collective leave run from Saturday 15 to Thursday 20 May, when domestic travel gets busy.

Contents

What is the weather like from April to June?

In weather2travel’s long-term averages for Mataram, highs are 31 degrees in April and May and 30 in June, while lows drop from 22 in April to 21 in May and 20 in June, so mornings and evenings get slightly cooler. There are 12 rainy days in April, 7 in May and 5 in June, with 105 mm, 101 mm and 51 mm of rain. Compared with January to March (317 mm and 21 days in January), there is much less rain.

Sunshine averages nine hours a day in all three months, and the sea is 29 degrees in April and May and 28 in June. Heat and humidity are rated very high in April and high in May and June.

These are figures for Mataram, north-east of Sekotong, not measurements from Sekotong itself, and they vary from year to year. The sea through the months is covered in Sekotong weather and sea seasons, and the whole year in the best time to visit Lombok.

Figure: Rainfall and rainy days, April to June (Mataram averages)

Which public holidays fall between April and June 2027?

According to the Indonesian State Secretariat’s announcement (15 September 2026), there are no public holidays or collective leave days (cuti bersama, days off the government recommends) in April 2027. May and June are as follows. Eid al-Adha on Monday 17 May and Vesak on Thursday 20 May are joined by collective leave on the 18th and 19th, so some people will be off from Saturday 15 to Thursday 20 May.

← Scroll sideways to see the whole table

Date (2027)	Holiday or leave	Effect on travel
Sat 1 May	Labour Day	Falls on a weekend
Thu 6 May	Ascension of Jesus Christ	Four days if you take Friday off
Mon 17 and Tue 18 May	Eid al-Adha (18th is collective leave)	More domestic travel
Wed 19 and Thu 20 May	Vesak (19th is collective leave)	End of the break from the 15th
Tue 1 June	Pancasila Day	Public holiday
Sun 6 June	Islamic New Year	Public holiday

Source: Indonesian State Secretariat, Inilah SKB 3 Menteri Libur Nasional dan Cuti Bersama 2027 (15 September 2026).

Around long weekends, ports and airports get busy with people going home or travelling, so leave extra time for transfers. The full holiday calendar is in Friday prayers, holidays and Ramadan on Lombok.

When can you climb Mount Rinjani?

Mount Rinjani’s trails close every year from January to the end of March for safety in the rainy season and to let the ecosystem recover, and usually reopen on 1 April (Antara, June 2025). In 2026 they reopened on 1 April. We could not find the 2027 reopening notice at the time of writing.

April is the tail of the rainy season and still has rainy days, and trail conditions vary from year to year. If you plan to climb, check the national park’s announcements and your trekking operator before booking. How to climb is covered in the Mount Rinjani trekking guide.

Take care

Check the 2027 reopening date in the national park’s announcement
April on the mountain can still be wet, and trail conditions change easily
Domestic travel is busy over the 15 to 20 May long weekend, so travel days either side are easier

Late April and early May: few Indonesian holidays

In 2027 Indonesia has no public holidays in April, Labour Day on 1 May falls on a Saturday and Ascension on 6 May is a Thursday, so the big domestic break comes in mid-May. The period from late April to early May, which is a holiday season in some countries, is therefore not a peak for Indonesian domestic travel in 2027.

If your dates are flexible, compare flights on dates either side of your own country’s holidays as well.

How long should you stay between April and June?

Lombok’s only direct international flights are from Kuala Lumpur and Singapore, so most travellers connect through Bali, Jakarta or one of those cities. Sekotong is about 1 hour 10 minutes by car from Lombok International Airport. On the way home, for an international flight you should reach the airport four hours before departure, so leave Sekotong about 5 hours 10 minutes before departure (30 minutes to an hour earlier in rain or traffic).

Arrival day and departure day are mostly travel, so the days you can spend on the sea are the number of nights minus one or two. To separate island-trip days from beach days and swap them on windy days, three nights or more works well. How many nights to stay is covered in how many nights in Sekotong.

How to spend April to June in Sekotong

With less rain, it becomes easier to plan island trips and snorkelling days off Sekotong. Wind direction and strength vary from day to day, so head out on island trips in the morning and come back after midday, and spend windy days on the beach or in the village.

Semelar Beach Village plans to start paddle and pedal kayak hire (seven boats) on 7 November 2026. Prices are Rp120,000 an hour for a two- to three-person paddle kayak, Rp175,000 for a one-person pedal kayak, and Rp300,000 per person for a guided tour. The beach cafe SAKURA CAFE and SEMELAR MARKET are open 10:00 to 22:00 (closed Mondays), and the bamboo restaurant is scheduled to open on 7 November 2026 with planned hours of 10:00 to 22:00, closed Mondays.

Figure: A day in Sekotong, April to June

A note from Sekotong

April still has about 12 rainy days, and rainy days decrease towards June (Mataram averages). Putting the island trip early in your stay, so it can move if the weather turns, makes it easier to fit everything in even with a rainy or windy day.

Downsides, and who an April to June trip suits

The downsides first. April is the end of the rainy season, with about 12 rainy days in the month. The mid-May Indonesian long weekend makes domestic travel busy. The Rinjani reopening date has to be checked each year.

With less rain and longer sunshine, this season suits people who want plenty of days on the sea and those who want to go before the peak dry months of July and August. Semelar Beach Village’s stay programme runs from 3 nights and 4 days to 5 nights and 6 days at Rp4,800,000 per person, including airport transfers, transport, a guide, a welcome dinner and a massage (flights and accommodation are separate). What you can do is on Things to do.

Frequently asked questions

Q. Is April on Lombok the rainy season or the dry season?

It is the change from one to the other. Mataram averages show 12 rainy days and 105 mm in April, less than January to March.

Q. Which month has the least rain between April and June?

June, with 5 rainy days and 51 mm (Mataram averages).

Q. When is the Indonesian long weekend in May 2027?

Collective leave on 18 and 19 May sits between Eid al-Adha on the 17th and Vesak on the 20th, so some people are off from Saturday 15 to Thursday 20 May.

Q. Can I climb Rinjani in April?

The trails usually reopen on 1 April. Check the national park’s announcement for the 2027 date.

Q. When does kayaking start?

Semelar Beach Village plans to start on 7 November 2026.

Summary

April to June is when Lombok moves from the rainy season into the dry season, with rainy days falling from 12 in April to 5 in June (Mataram averages). Sunshine averages about nine hours a day and the sea is 28 to 29 degrees.

In 2027 April has no public holidays, and an Indonesian long weekend runs from 15 to 20 May. Rinjani usually reopens on 1 April. Put the island trip early in your stay so it can be swapped on a windy day (as of November 2026).