May 23 is generally a great time to visit Nantucket. While there is a slight chance of rain (20%), showers are usually brief. Expect comfortable 13°C weather. Take advantage of the off-peak calm in Nantucket to see the sights without the usual crowds.
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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 May 23
"Mild & Comfortable. Expect average highs of 12.7°C. 20% chance of rain."
What to Wear in Nantucket in May
Based on historical data for May 23, Nantucket typically experiences temperatures between 10.6°C and 12.7°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (20% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Nantucket
Smart Suitcase
- Light Jacket
- Long Pants
Average High
12.7°C
Daytime Peak
Average Low
10.6°C
Nighttime Low
Feels Like
11.3°C
🌤️ Minor difference
Rain Chance
20%
Avg 1.7mm if it rains
Cloud Cover
61%
Overcast
Pressure
1016.5 hPa
Medium volatility
Nantucket Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 92% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
04:00 - 10:00
16:00 - 19:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
10.4°C
Pleasant
Heat Stress
Low
No heat warning
😐 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
Quiet
22/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~31
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Nantucket
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
04:16
☀️ Noon
11:38
🌇 Sunset
19:00
⏱️ Daylight
14h 44m
Wind Speed
31.1 km/h
Fresh breeze
Sunshine
10.2 hrs
Direct Sun (Cloud-free)
Humidity
86%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Nantucket
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 Nantucket
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
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 May 23 averages 12.7°C with a 20% precipitation probability. Wedding/Outdoor Event Score: 74/100."
— 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
May 30
14.2°C • 21% rain
Score
86
May 28
13.9°C • 18% rain
Score
85
May 29
14°C • 21% rain
Score
85
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 23) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Nantucket Worth Visiting on May 23?
Planning a trip to Nantucket on May 23? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging 12.7°C with a 20% historical precipitation risk.
✈️ Travel Logistics: Approximately 31 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest May 23 recorded in the last 30 years saw temperatures hit 18.3°C in 2021, while the coldest dropped to 9°C in 2025.