May 3 is generally a great time to visit St. John's. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 28°C weather. You'll find plenty of company in St. John's this month as tourism activity remains quite robust.
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Essential Travel Info for St. John's
Currency
XCD
$ Eastern Caribbean dollar
Language
English
Driving
Left side
St. John's Weather Forecast for May 3
"Warm & Sunny. Expect average highs of 28.2°C. 28% chance of rain."
What to Wear in St. John's in May
Based on historical data for May 3, St. John's typically experiences temperatures between 24.9°C and 28.2°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for St. John's
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
28.2°C
Daytime Peak
Average Low
24.9°C
Nighttime Low
Feels Like
31.8°C
🔥 Feels warmer
Rain Chance
28%
Avg 1.5mm if it rains
Cloud Cover
49%
Light drizzle
Pressure
1015.2 hPa
Low volatility
St. John's 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 30+ required, seek shade
05:00 - 10:00
16:00 - 18:00
Type I-II
🔴 11 min to burn
Type III-IV
🟡 17 min to burn
Type V-VI
🟢 28 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
23.3°C
Humid/Sticky
Heat Index
31.8°C
Feels hotter
😐 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
✅ Excellent Swimming Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Antigua and Barbuda
Flight Traffic
Busy
70/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~16
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in St. John's
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:42
☀️ Noon
12:05
🌇 Sunset
18:28
⏱️ Daylight
12h 46m
Wind Speed
27.8 km/h
Moderate wind
Sunshine
11.5 hrs
Direct Sun (Cloud-free)
Humidity
75%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for St. John's
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 St. John's
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.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Active seismic zone. Multiple earthquakes per year.
Atlantic Hurricane Risk
Season: Jun - 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, St. John's on May 3 averages 28.2°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 88/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
St. John's Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
April 26
28.2°C • 19% rain
Score
91
April 27
28.1°C • 22% rain
Score
91
April 28
28.1°C • 21% rain
Score
91
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 3) in other destinations
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📍 Is St. John's Worth Visiting on May 3?
Planning a trip to St. John's on May 3? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 28.2°C with a 28% historical precipitation risk.
✈️ Travel Logistics: Approximately 16 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Antigua and Barbuda, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 28.4°C (tropical bath). Wave conditions are generally fun waves with heights around 0.94m.
📊 Historical Extremes: The hottest May 3 recorded in the last 30 years saw temperatures hit 31.1°C in 2024, while the coldest dropped to 23.7°C in 2017.