Indonesia Monthly Climate

Indonesia's climate is characterized by its tropical location and monsoon influence, creating a distinct wet and dry season pattern. From the bustling streets of Jakarta to the beaches of Bali, Indonesia's vast archipelagic geography creates diverse weather patterns that shape both daily life and tourism across this equatorial nation.

Don't forget to check WhereWeather Website for weather statistics on your exact travel dates, for any city in Indonesia or worldwide. You can also compare different cities and dates side-by-side.

Regional Climate Overview

Indonesia's climate can be divided into several distinct regions:

Java

Tropical monsoon climate
High humidity
Distinct wet season
Urban heat islands
Mountain influences

Bali & Lesser Sunda

Tropical savanna climate
Drier than western regions
Strong seasonal changes
Coastal influences
Mountain effects

Sumatra

Tropical rainforest climate
High rainfall year-round
Constant humidity
Mountain ranges
Equatorial position

Eastern Indonesia

Semi-arid climate
Less rainfall
Longer dry season
Maritime influence
Regional variations

Featured Indonesian Cities

Explore detailed weather information for some of Indonesia's most visited destinations:

Jakarta

Bustling tropical capital

Bali

Island paradise

Seasonal Patterns

Wet Season (October-April)

Temperatures: 25-32°C (77-90°F)
Heavy rainfall
High humidity
Afternoon storms
Lush vegetation

Dry Season (May-September)

Temperatures: 27-33°C (81-91°F)
Less rainfall
Lower humidity
Clear skies
Pleasant evenings

Shoulder Seasons

April-May: Transition period
September-October: Changing winds
Variable rainfall
Moderate temperatures
Good travel time

Best Time to Visit

The ideal time to visit Indonesia varies by region:

Java & Jakarta

May to September: Dry season
Best months: July-August
Avoid January-February: Heavy rain

Bali

April to October: Dry season
Best months: June-September
Avoid December-March: Monsoon

Mountain Regions

May to September: Clear views
Best months: July-August
Avoid December-February: Heavy rain

Regional Variations

Temperature

Coastal areas: 25-33°C (77-91°F)
Mountain regions: 15-25°C (59-77°F)
Urban areas: 24-34°C (75-93°F)
Eastern regions: 24-35°C (75-95°F)

Rainfall

Western regions: 2000-3000mm annual average
Eastern regions: 1000-2000mm annual average
Mountain areas: 3000-4000mm annual average
Southern regions: 1500-2500mm annual average

Visitor Tips

What to Pack

Light, breathable clothing
Rain protection
Sun protection
Mosquito repellent
Quick-dry fabrics

Weather Considerations

Plan around monsoon season
Book morning activities
Watch for afternoon storms
Consider regional variations
Check local forecasts

Health and Safety

Stay hydrated
Use sun protection
Watch for flooding
Monitor weather alerts
Prepare for humidity