March 15 is generally a great time to visit Nantucket. While there is a slight chance of rain (23%), showers are usually brief. Expect comfortable 5°C weather. Nantucket is very peaceful this time of year, perfect for a secluded and budget-friendly getaway.
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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 March 15
"Mild & Comfortable. Expect average highs of 5.4°C. 23% chance of snow."
What to Wear in Nantucket in March
Based on historical data for March 15, Nantucket typically experiences temperatures between 2.2°C and 5.4°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. Trends suggest it will stay mostly dry (23% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Nantucket
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
5.4°C
Daytime Peak
Average Low
2.2°C
Nighttime Low
Feels Like
-0.1°C
🥶 Wind chill effect
Snow Chance
23%
Avg 2.1mm if it snows
Snowfall
0.4 cm
~23% chance
Pressure
1015.6 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 84% 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
🔴 31 min to burn
Type III-IV
🟡 47 min to burn
Type V-VI
🟢 78 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
1.7°C
Dry air
Heat Stress
Low
No heat warning
😣 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Minimal
11/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~15
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nantucket
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:53
☀️ Noon
11:50
🌇 Sunset
17:47
⏱️ Daylight
11h 53m
Wind Speed
39.3 km/h
Strong wind
Sunshine
8.1 hrs
Direct Sun (Cloud-free)
Humidity
77%
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
☀️ Excellent
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 March 15 averages 5.4°C with a 23% precipitation probability. Wedding/Outdoor Event Score: 33/100."
— 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
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (March 15) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nantucket Worth Visiting on March 15?
Planning a trip to Nantucket on March 15? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 5.4°C with a 23% historical precipitation risk.
✈️ Travel Logistics: Approximately 15 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest March 15 recorded in the last 30 years saw temperatures hit 9.3°C in 2019, while the coldest dropped to -6.1°C in 2021.