December 20 is generally a great time to visit Kahului. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 26°C weather. You'll enjoy Kahului with reasonable crowd levels and competitive accommodation options.
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Essential Travel Info for Kahului
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Kahului Weather Forecast for December 20
"Warm & Sunny. Expect average highs of 26.1°C. 16% chance of rain."
What to Wear in Kahului in December
Based on historical data for December 20, Kahului typically experiences temperatures between 21.1°C and 26.1°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Kahului
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
26.1°C
Daytime Peak
Average Low
21.1°C
Nighttime Low
Feels Like
27.1°C
☀️ Minor difference
Rain Chance
16%
Avg 1mm if it rains
Cloud Cover
44%
Light drizzle
Pressure
1015.7 hPa
Low volatility
Kahului Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
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
21.1°C
Humid/Sticky
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Morning hours (before 11 AM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Moderate
42/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~49
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Kahului
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:59
☀️ Noon
12:24
🌇 Sunset
17:50
⏱️ Daylight
10h 51m
Wind Speed
22.4 km/h
Moderate wind
Sunshine
8.8 hrs
Direct Sun (Cloud-free)
Humidity
74%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Kahului
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Kahului
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
Eastern Pacific Hurricane Risk
Season: May - Nov
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, Kahului on December 20 averages 26.1°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 97/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Kahului Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
December 14
26.7°C • 14% rain
Score
100
December 15
26.7°C • 13% rain
Score
100
December 16
26.5°C • 11% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (December 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Kahului Worth Visiting on December 20?
Planning a trip to Kahului 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 26.1°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 49 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest December 20 recorded in the last 30 years saw temperatures hit 28.4°C in 2019, while the coldest dropped to 20°C in 2017.