West Nusa Tenggara (Nusa Tenggara Barat) is an Indonesian province spanning two main islands—Lombok and Sumbawa—offering a diverse blend of volcanic peaks, pristine beaches, and rich Sasak and Sumbawan cultures. From the towering Mount Rinjani and the turquoise Gili Islands to the legendary surf breaks of Lakey Beach and the remote wilderness of Moyo Island, the province delivers world-class adventure and relaxation in equal measure.
West Nusa Tenggara has a tropical monsoon climate with two distinct seasons: a dry season from May to October (influenced by Australia's dry southeast trade winds) and a wet season from November to April. Lombok receives less rainfall than Bali due to its position on the drier eastern side of the Wallace Line. Sumbawa is even drier than Lombok. Temperatures stay warm year-round, between 24°C and 33°C at sea level.
Best time to visit
Best: May to September
Best Reason: The dry season brings clear skies, calm seas perfect for diving and snorkeling around the Gili Islands, and excellent trekking conditions on Mount Rinjani. The sea is at its clearest and the beaches are most enjoyable.
Peak Season: July to August
Avoid: January to February
Avoid Reason: The height of the wet season brings heavy daily rainfall, especially in the afternoons, with some roads and trekking trails becoming impassable. The Rinjani summit trail is officially closed December–March. Seas can be rough for island hopping.
Month-by-month weather
Typical conditions throughout the year.
January
26°C/79°F
Peak wet season — heavy afternoon downpours, humid, rough seas; lowest tourist numbers and prices
February
26°C/79°F
Still wet season; Nyale Festival at Kuta Beach (February/March depending on moon) is a unique cultural highlight
March
27°C/81°F
Rain beginning to ease; seas calming; good value month with warm temperatures; Rinjani permits begin
April
27°C/81°F
Transitional month — occasional showers but improving conditions; good value; sea begins to clear for diving
May
27°C/81°F
Dry season begins; excellent weather with lower humidity; seas calm and crystal clear for diving
June
26°C/79°F
Outstanding dry season month; comfortable temperatures with cooling sea breeze; Rinjani in prime condition
July
25°C/77°F
Peak tourist season with best weather; warmest surf swells for Kuta and Lakey Beach; book well ahead
August
25°C/77°F
Peak month — maximum sunshine, perfect sea conditions, and the busiest tourist period; prices highest
September
26°C/79°F
Excellent weather continuing with crowds beginning to thin; ideal balance of conditions and value
October
27°C/81°F
Late dry season; still good weather with reducing crowds; occasional early showers possible
November
27°C/81°F
Wet season approaching; first rains arrive; seas becoming choppier; prices drop significantly
December
26°C/79°F
Wet season in full swing; heavy rains in afternoons; Christmas and New Year bring a short spike in tourists
The seasons
What to expect in each part of the year.
Dry_season
Months: May–October
Clear skies, calm seas, and cooler evenings. The best time for beach activities, snorkeling, diving, trekking, and all outdoor activities. Humidity is lower and rainfall is minimal.
Wet_season
Months: November–April
Heavy afternoon rain showers, especially December to February. Mornings are often clear. Sea can be rough in the straits. Rinjani summit trail officially closed. Lower prices and fewer tourists.
Crowds & peak times
When to expect tourists and when to avoid them.
- High Season
- July–August (peak European and Australian school holiday period)
- Shoulder Season
- May–June and September–October (excellent weather with moderate crowds and better prices)
- Low Season
- November–April (wet season; quietest and cheapest period)
Major events & festivals
Time your visit around what matters.
Nyale Festival
Ancient Sasak festival at Kuta Beach marking the emergence of sea worms (nyale) from the ocean, believed to bring good luck — includes traditional performances, Peresean stick-fighting, and a mass beach gathering
Lombok Sumbawa Expo
Annual provincial festival showcasing West Nusa Tenggara's culture, food, craft, and tourism
Idul Fitri Celebrations
End-of-Ramadan celebrations with large public prayers, family gatherings, and festive street food across the province
Moto GP Mandalika
International MotoGP championship race at the Pertamina Mandalika International Street Circuit near Kuta Lombok — massive event attracting tens of thousands of visitors
Sumbawa Tambora Festival
Cultural and adventure festival at Mount Tambora with trekking events, traditional performances, and local food celebration