December 21 is generally a great time to visit Langkawi. While there is a slight chance of rain (32%), showers are usually brief. Expect comfortable 29°C weather. Langkawi is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Langkawi
Currency
MYR
RM Malaysian ringgit
Language
English
+1 more
Driving
Left side
Connect
Mobile phone coverage is very good in al...
Safety
Very High Safety
GPI: 1.471
Langkawi Weather Forecast for December 21
"Warm & Sunny. Expect average highs of 29.1°C. 32% chance of rain."
What to Wear in Langkawi in December
Based on historical data for December 21, Langkawi typically experiences temperatures between 24.2°C and 29.1°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 32% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Langkawi
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.1°C
Daytime Peak
Average Low
24.2°C
Nighttime Low
Feels Like
35.2°C
🔥 Heat index effect
Rain Chance
32%
Avg 2.3mm if it rains
Cloud Cover
79%
Light drizzle
Pressure
1010.5 hPa
Low volatility
Langkawi 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
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
25.5°C
Humid/Sticky
Heat Index
35.2°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Malaysia
Flight Traffic
Busy
77/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~27
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Langkawi
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:27
☀️ Noon
13:19
🌇 Sunset
19:12
⏱️ Daylight
11h 45m
Wind Speed
20.2 km/h
Moderate wind
Sunshine
9.2 hrs
Direct Sun (Cloud-free)
Humidity
81%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Langkawi
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 Langkawi
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 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.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
Cyclone Risk
Season: Apr - Dec
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Langkawi on December 21 averages 29.1°C with a 32% precipitation probability. Wedding/Outdoor Event Score: 86/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Langkawi Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 26
29.5°C • 21% rain
Score
91
December 27
29.5°C • 22% rain
Score
91
December 28
29.6°C • 21% rain
Score
91
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 21) in other destinations
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📍 Is Langkawi Worth Visiting on December 21?
Planning a trip to Langkawi on December 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.1°C with a 32% historical precipitation risk.
✈️ Travel Logistics: Approximately 27 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 11 vaccinations are recommended for Malaysia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29°C (hot soup). Wave conditions are generally lake-like with heights around 0.38m.
📊 Historical Extremes: The hottest December 21 recorded in the last 30 years saw temperatures hit 31°C in 2024, while the coldest dropped to 23.6°C in 2019.