August 18 is generally a great time to visit Jakarta. While there is a slight chance of rain (22%), showers are usually brief. Expect comfortable 32°C weather. Jakarta is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for Jakarta
Currency
IDR
Rp Indonesian rupiah
Language
Indonesian
Driving
Left side
Connect
The area code for Jakarta and the metrop...
Safety
High Safety
GPI: 1.8
Jakarta Weather Forecast for August 18
"Warm & Sunny. Expect average highs of 31.5°C. 22% chance of rain."
What to Wear in Jakarta in August
Based on historical data for August 18, Jakarta typically experiences temperatures between 23.3°C and 31.5°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (22% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Jakarta
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
31.5°C
Daytime Peak
Average Low
23.3°C
Nighttime Low
Feels Like
40.3°C
🔥 Heat index effect
Rain Chance
22%
Avg 1mm if it rains
Cloud Cover
58%
Overcast
Pressure
1010.4 hPa
Low volatility
Jakarta Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 44 min to burn
Type III-IV
🟡 66 min to burn
Type V-VI
🟢 110 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.3°C
Humid/Sticky
Heat Index
40.3°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Marine Conditions
Jellyfish Warning
High water temps may attract jellyfish swarms.
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Indonesia
Flight Traffic
High
91/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~568
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Jakarta
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:00
☀️ Noon
11:58
🌇 Sunset
17:55
⏱️ Daylight
11h 55m
Wind Speed
12.2 km/h
Gentle breeze
Sunshine
10.7 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Jakarta
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Jakarta
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
Moderate fish activity expected.
Unhealthy for sensitive groups. Consider wearing a mask outdoors.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Travel Alert: This region has elevated natural risks. We recommend registering with your embassy and keeping emergency numbers handy.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Jakarta on August 18 averages 31.5°C with a 22% precipitation probability. Wedding/Outdoor Event Score: 91/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Jakarta Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
August 24
31.8°C • 13% rain
Score
97
August 23
31.7°C • 15% rain
Score
93
August 16
31.4°C • 19% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
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📍 Is Jakarta Worth Visiting on August 18?
Planning a trip to Jakarta on August 18? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31.5°C with a 22% historical precipitation risk.
✈️ Travel Logistics: Approximately 568 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 11 vaccinations are recommended for Indonesia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29.6°C (hot soup). Wave conditions are generally lake-like with heights around 0.4m.
📊 Historical Extremes: The hottest August 18 recorded in the last 30 years saw temperatures hit 34.4°C in 2019, while the coldest dropped to 21.6°C in 2018.