December 20 is generally a great time to visit Nuku'alofa. While there is a slight chance of rain (36%), showers are usually brief. Expect comfortable 27°C weather. You'll enjoy Nuku'alofa with reasonable crowd levels and competitive accommodation options.
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Essential Travel Info for Nuku'alofa
Currency
TOP
T$ Tongan paʻanga
Language
English
+1 more
Driving
Left side
Nuku'alofa Weather Forecast for December 20
"Warm & Sunny. Expect average highs of 26.7°C. 36% chance of rain."
What to Wear in Nuku'alofa in December
Based on historical data for December 20, Nuku'alofa typically experiences temperatures between 24.6°C and 26.7°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 36% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nuku'alofa
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
26.7°C
Daytime Peak
Average Low
24.6°C
Nighttime Low
Feels Like
27.9°C
☀️ Minor difference
Rain Chance
36%
Avg 2.4mm if it rains
Cloud Cover
63%
Light drizzle
Pressure
1010.8 hPa
Low volatility
Nuku'alofa Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 77% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 13 min to burn
Type III-IV
🟡 20 min to burn
Type V-VI
🟢 33 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
22.7°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Tonga
Flight Traffic
Moderate
50/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~2
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nuku'alofa
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:56
☀️ Noon
12:39
🌇 Sunset
19:21
⏱️ Daylight
13h 25m
Wind Speed
26.6 km/h
Moderate wind
Sunshine
11.0 hrs
Direct Sun (Cloud-free)
Humidity
79%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nuku'alofa
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 Nuku'alofa
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
Very high seismic risk. Ring of Fire territory.
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, Nuku'alofa on December 20 averages 26.7°C with a 36% precipitation probability. Wedding/Outdoor Event Score: 83/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nuku'alofa Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 20) in other destinations
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📍 Is Nuku'alofa Worth Visiting on December 20?
Planning a trip to Nuku'alofa on December 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 26.7°C with a 36% historical precipitation risk.
✈️ Travel Logistics: Approximately 2 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Tonga, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 27.4°C (tropical bath). Wave conditions are generally surfers only with heights around 1.58m.
📊 Historical Extremes: The hottest December 20 recorded in the last 30 years saw temperatures hit 28.9°C in 2024, while the coldest dropped to 22.8°C in 2018.