November 4 is generally a great time to visit San Juan. While there is a slight chance of rain (38%), showers are usually brief. Expect comfortable 30°C weather. You'll find plenty of company in San Juan this month as tourism activity remains quite robust.
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Essential Travel Info for San Juan
Currency
USD
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Language
English
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Driving
Right side
San Juan Weather Forecast for November 4
"Warm & Sunny. Expect average highs of 29.5°C. 38% chance of rain."
What to Wear in San Juan in November
Based on historical data for November 4, San Juan typically experiences temperatures between 23.8°C and 29.5°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 38% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for San Juan
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29.5°C
Daytime Peak
Average Low
23.8°C
Nighttime Low
Feels Like
36.9°C
🔥 Heat index effect
Rain Chance
38%
Avg 2.9mm if it rains
Cloud Cover
56%
Light drizzle
Pressure
1013.3 hPa
Low volatility
San Juan Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 90% 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
🔴 160 min to burn
Type III-IV
🟡 240 min to burn
Type V-VI
🟢 400 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.3°C
Humid/Sticky
Heat Index
36.9°C
Feels hotter
😕 Best outdoor time:
Morning hours (before 11 AM)
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Puerto Rico
Flight Traffic
Busy
71/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~154
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Juan
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:26
☀️ Noon
12:09
🌇 Sunset
17:51
⏱️ Daylight
11h 25m
Wind Speed
17.7 km/h
Gentle breeze
Sunshine
9.7 hrs
Direct Sun (Cloud-free)
Humidity
83%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for San Juan
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in San Juan
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
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
Moderate seismic activity. Occasional tremors possible.
Atlantic Hurricane Risk
Season: Jun - Nov
"According to 30YearWeather's analysis of 30 years of NASA satellite data, San Juan on November 4 averages 29.5°C with a 38% precipitation probability. Wedding/Outdoor Event Score: 84/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
San Juan Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (November 4) in other destinations
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📍 Is San Juan Worth Visiting on November 4?
Planning a trip to San Juan on November 4? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29.5°C with a 38% historical precipitation risk.
✈️ Travel Logistics: Approximately 154 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Puerto Rico, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 29.6°C (hot soup). Wave conditions are generally surfers only with heights around 1.44m.
📊 Historical Extremes: The hottest November 4 recorded in the last 30 years saw temperatures hit 31.4°C in 2021, while the coldest dropped to 22.3°C in 2022.