January 20 is generally a great time to visit Nantucket. While there is a slight chance of rain (31%), showers are usually brief. Expect comfortable 4°C weather. Nantucket is very peaceful this time of year, perfect for a secluded and budget-friendly getaway. Note: January 20 is Martin Luther King, Jr. Day in Nantucket, so expect special events, closures, and festive atmosphere.
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Essential Travel Info for Nantucket
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Nantucket Weather Forecast for January 20
"Cold & Crisp. Expect average highs of 3.5°C. 31% chance of snow."
What to Wear in Nantucket in January
Based on historical data for January 20, Nantucket typically experiences temperatures between -0.9°C and 3.5°C. We recommend packing heavy coat, scarf, gloves along with other layers to stay comfortable. With a 31% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Nantucket
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
- Umbrella
Average High
3.5°C
Daytime Peak
Average Low
-0.9°C
Nighttime Low
Feels Like
-2.8°C
🥶 Wind chill effect
Snow Chance
31%
Avg 2.3mm if it snows
Snowfall
0.6 cm
~31% chance
Pressure
1015.7 hPa
High volatility
Nantucket 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 15 for extended outdoor time
Type I-II
🔴 267 min to burn
Type III-IV
🟡 401 min to burn
Type V-VI
🟢 668 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
-0.9°C
Dry air
Heat Stress
Low
No heat warning
😣 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Travel & Logistics Insights
Local Calendar
Holiday
Martin Luther King, Jr. Day
Flight Traffic
Minimal
12/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~17
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nantucket
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:02
☀️ Noon
11:52
🌇 Sunset
16:42
⏱️ Daylight
9h 39m
Wind Speed
41.7 km/h
Strong wind
Sunshine
5.3 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nantucket
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in Nantucket
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Weather unlikely to affect joint pain.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
Atlantic Hurricane Risk
Season: Jun - Nov
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Nantucket on January 20 averages 3.5°C with a 31% precipitation probability. Wedding/Outdoor Event Score: 16/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Nantucket Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
January 13
5.2°C • 28% rain
Score
27
January 14
5.2°C • 31% rain
Score
25
January 15
4.7°C • 30% rain
Score
22
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (January 20) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nantucket Worth Visiting on January 20?
Planning a trip to Nantucket on January 20? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 3.5°C with a 31% historical precipitation risk.
🎉 Local Event: The date coincides with Martin Luther King, Jr. Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 17 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest January 20 recorded in the last 30 years saw temperatures hit 10.7°C in 2019, while the coldest dropped to -6°C in 2024.