Indonesia, the world’s largest archipelago, boasts diverse landscapes, cultures, and climates. Knowing when to visit can greatly enhance your travel experience, helping you avoid heavy rains and enjoy the country’s stunning beaches, vibrant festivals, and lush landscapes. This guide breaks down the best time to visit Indonesia by season, detailing the weather for major cities so you can plan your adventure with confidence.

Indonesia’s Climate: Wet and Dry Seasons

Indonesia has a tropical climate with two primary seasons: the dry season (April to October) and the wet season (November to March). The weather can vary across different islands, but understanding the general patterns will help you decide when and where to go.

Bali, Lombok, and the Gili Islands 🌴

Dry Season: April to October (Best time to visit)

April - May: The weather is warm, dry, and perfect for beach days and exploring Bali’s temples and rice terraces.

June - August: Peak season with sunny skies, cooler evenings, and perfect conditions for outdoor activities. Expect crowds, especially in tourist hotspots like Seminyak and Ubud.

September - October: A great time to visit with fewer crowds, warm temperatures, and clear skies. Ideal for diving and snorkeling around the Gili Islands.

Wet Season: November to March 🌧️

November - January: Expect frequent afternoon showers, but mornings are often dry. It’s still possible to enjoy the beach, but be prepared for occasional downpours.

February - March: Rainfall can be heavy, with higher humidity. Some outdoor activities might be limited, but it’s a quieter time with lower accommodation prices.

Visit in May, June, or September for the best balance of good weather, fewer crowds, and reasonable prices. Book accommodations early if traveling during peak season.

Jakarta and Java Island 🏙️

Dry Season: May to September (Best time to visit)

May - June: Pleasant temperatures with little rain, making it perfect for exploring Jakarta’s bustling streets and Yogyakarta’s cultural landmarks.

July - August: The driest and coolest months, ideal for visiting Borobudur and Prambanan temples without the crowds. Expect sunny days and comfortable evenings.

September: Still dry and warm, a great month for hiking Mount Bromo or exploring Bandung’s tea plantations.

Wet Season: October to April 🌧️

October - December: Increased rainfall, but sightseeing is still possible with brief morning showers and sunny afternoons. Keep an umbrella handy.

January - April: The wettest months with heavy rain and thunderstorms. While travel is still possible, be prepared for occasional delays due to weather.

The dry season is perfect for outdoor activities and cultural exploration. July and August offer cooler weather, but if you prefer fewer tourists, try visiting in early June or late September.

Sumatra: Medan, Lake Toba, and Banda Aceh 🌳

Dry Season: May to September (Best time to visit)

May - July: Dry and pleasant weather, ideal for exploring Sumatra’s natural wonders like Lake Toba, trekking to see orangutans in Bukit Lawang, or relaxing on Samosir Island.

August - September: Still dry, with warm days and cool nights—perfect for outdoor adventures and wildlife spotting.

Wet Season: October to April 🌧️

October - December: Expect frequent rain showers, which can affect hiking and trekking conditions. However, it’s still possible to explore cultural sites and city attractions.

January - April: The peak of the wet season, with heavy rainfall and high humidity. Some areas may be prone to flooding.

Plan your visit during the dry months of June to September for the best wildlife encounters and scenic treks. For a quieter experience, consider May when the rains have just ended.

Sulawesi: Makassar and Manado 🐠

Dry Season: June to October (Best time to visit)

June - August: The driest months with plenty of sunshine, perfect for diving in Bunaken or exploring Toraja’s cultural villages.

September - October: Warm and dry, ideal for marine activities and outdoor sightseeing with fewer tourists.

Wet Season: November to May 🌧️

November - December: Moderate rainfall with some sunny breaks, still good for exploring but with occasional rain showers.

January - May: Heavy rainfall, particularly in mountainous regions. Diving is still possible but expect reduced visibility in some areas.

For diving enthusiasts, July to October offers the best underwater visibility. To experience Sulawesi’s unique culture and landscapes, aim for the dry season to avoid travel disruptions.

Kalimantan: Borneo’s Rainforests 🦧

Dry Season: June to September (Best time to visit)

June - August: Perfect for wildlife spotting, including orangutans, in Tanjung Puting National Park. The weather is hot but less humid, and rain is minimal.

September: A quieter time with great conditions for river cruises and trekking.

Wet Season: October to May 🌧️

October - December: Frequent rain but still manageable for travel, especially in the mornings. Afternoons often have heavier downpours.

January - May: Peak wet season with high humidity, heavy rains, and occasional flooding in remote areas.

Visit during July and August for optimal wildlife encounters and to explore Kalimantan’s lush rainforests. Book river tours in advance to secure a spot during the popular dry season.

Papua: Jayapura and Raja Ampat 🏝️

Dry Season: October to April (Best time to visit)

October - December: Ideal for diving in Raja Ampat, with calm seas and excellent visibility. Enjoy fewer crowds and pristine underwater landscapes.

January - April: Clear waters and beautiful weather, perfect for exploring Papua’s remote islands and beaches.

Wet Season: May to September 🌧️

May - June: The start of the wet season with occasional showers. Still a good time for diving but with reduced visibility.

July - September: The rainiest period, especially in the highlands. Travel to some areas may be restricted due to weather conditions.

Raja Ampat is best visited from October to April for the best diving conditions and to avoid the rainy season. Book your accommodations and dive trips early, as this is a popular time for underwater enthusiasts.

Conclusion

Indonesia’s diverse climate means there’s always a great time to visit one of its many beautiful regions. For sunny beach days, outdoor adventures, and vibrant cultural experiences, the dry season (April to October) is generally the best time to travel. However, the wet season also has its charm, offering lush landscapes, fewer crowds, and off-season deals.