Puerto Rico San Juan Weather in March — Climate Guide
March in San Juan is very-high
March is very-high for San Juan.
March is statistically San Juan's driest 2-week window (mid-March) with the highest UV index of the year (11, extreme). Spring Break (March 1-25) brings US college students to Condado + Isla Verde party scene — Condado Plaza Hilton + La Concha Beach + La Factoría are the canonical Spring Break clubs.
Families + honeymoon couples seeking quiet: avoid Condado Plaza area, book Ocean Park boutique or Vieques offshore. Old San Juan less Spring Break-affected.
Travel score
Spring Break peak + Holy Week prep + driest month tail
March Weather at a Glance
March averages 84°F / 29°C highs and 70°F / 21°C lows with 6 rainy days and 55mm rainfall. Humidity 74%. UV 11 (extreme — year peak). Sunshine 8 hours. Sea 27°C swimming-friendly. Driest 2-week window mid-month.
March Travel Advice
Spring Break travelers: book Condado Plaza area 6-8 weeks ahead. Non-Spring-Break travelers: book Old San Juan, Ocean Park, Miramar, or Vieques to avoid party chaos. Holy Week: 6+ weeks ahead. Pre-book El Yunque + Vieques bio bay 2-3 weeks ahead.
Flying In from Overseas
US Spring Break peak inbound. Latin American + European spring travel begins. Direct flights from NYC $450-750, Boston $450-700, Toronto $500-800, Madrid $700-1,000. Korean + Japanese visitors continue at low base via LAX/DFW.
March Pricing Trends
Spring Break + Holy Week premium: Condado oceanfront 4-star $400-700/night, Condado Vanderbilt + La Concha $500-1,000, Old San Juan El Convento $400-700. Spring Break weekend (Mar 8-22) +$50-150 surcharge.
San Juan March Weather Stats
Avg High
29°C
Avg Low
21°C
Rainy Days
6
55mm total
Sunshine
8h
Daily avg
Humidity
74%
humid
UV Index
11
Extreme
Wind
19 km/h
Gusts 34
Sea Temp
27°C
swimming-warm
Crowds
Very busy
At attractions
March Sunrise & Sunset
Air Quality
PM2.5
15 μg/m³
PM10
28 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
32°C
Nighttime
22°C
Humidity and wind affect how the actual temperature feels.
Wind
19 km/h
Max gust 34 km/h
Activities Recommended for March
March Travel Pros & Cons
Pros
- Statistically driest month tail (6 rainy days)
- Pre-Holy Week value window early March
- Sea 27°C warmer
- Old San Juan less Spring Break-affected
Cons
- Spring Break Condado + Isla Verde party chaos
- Spring Break +50-80% hotels
- Holy Week +30-50% premium
- UV 11 extreme
March Events & Festivals
- **Spring Break (US college students, Mar 1-25 — Condado + Isla Verde party scene)**
- Holy Week / Semana Santa (late March or April depending on year — Mexican + Latin American inbound peak)
- Statistically driest week of year mid-March
San Juan in March — Full Picture
March is statistically San Juan's driest 2-week window (mid-March) with the highest UV index of the year (11, extreme). Spring Break (March 1-25) brings US college students to Condado + Isla Verde party scene — Condado Plaza Hilton + La Concha Beach + La Factoría are the canonical Spring Break clubs.
Families + honeymoon couples seeking quiet: avoid Condado Plaza area, book Ocean Park boutique or Vieques offshore. Old San Juan less Spring Break-affected.
Holy Week / Semana Santa (late March or early April depending on year) is a Caribbean + Latin American holiday peak — domestic Puerto Rican families + Latin American inbound spike, hotels +30-50%.
What to Wear & What to Pack
Hot dry tail — light tropical, swimwear, hat, SPF 50+. UV index 11 extreme. Modest dress for Holy Week church visits if traveling end of month.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
Current30°C
22°C
7.7/mo
Summer (Jun·Jul·Aug)
32°C
24°C
11.7/mo
Autumn (Sep·Oct·Nov)
31°C
23.3°C
12.3/mo
Winter (Dec·Jan·Feb)
28°C
21°C
8.3/mo
San Juan Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 28° | 21° | 8d·75mm | 7h | 76% | 9 | Very busy | Peak |
| February (Best) | 28° | 21° | 7d·65mm | 8h | 75% | 10 | Very busy | Peak |
| March (Best) | 29° | 21° | 6d·55mm | 8h | 74% | 11 | Very busy | Peak |
| April (Best) | 30° | 22° | 7d·100mm | 8h | 75% | 11 | Busy | Shoulder |
| 31° | 23° | 10d·150mm | 8h | 76% | 12 | Moderate | Shoulder | |
| 32° | 24° | 11d·130mm | 8h | 78% | 12 | Moderate | Shoulder | |
| 32° | 24° | 12d·130mm | 8h | 78% | 12 | Busy | Peak | |
| 32° | 24° | 12d·150mm | 7h | 79% | 11 | Moderate | Shoulder | |
| 32° | 24° | 13d·160mm | 7h | 80% | 10 | Quiet | Low season | |
| 31° | 24° | 13d·165mm | 7h | 80% | 9 | Quiet | Low season | |
| November (Best) | 30° | 22° | 11d·140mm | 7h | 78% | 8 | Moderate | Shoulder |
| December (Best) | 28° | 21° | 10d·110mm | 7h | 77% | 8 | Very busy | Peak |
View Other Months
San Juan March Hotel Picks
Frequently Asked Questions
Is March a good time to visit San Juan?
San Juan in March is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in San Juan in March?
San Juan March averages a high of 29°C and a low of 21°C.
Does it rain much in San Juan in March?
San Juan March averages 55mm of rainfall over about 6 rainy days.
What should I wear in San Juan in March?
Hot dry tail — light tropical, swimwear, hat, SPF 50+. UV index 11 extreme. Modest dress for Holy Week church visits if traveling end of month.
What time are sunrise and sunset in San Juan in March?
San Juan March sunrise is 06:30 and sunset is 18:25, with 11h 55min of daylight.
What's the air quality like in San Juan in March?
San Juan March air quality (AQI) averages 40, rated Good. PM2.5 averages 15μg/m³.
What activities are recommended in San Juan in March?
In March, San Juan is great for Spring Break Condado nightlife (if 21-30), Old San Juan UNESCO (less affected), Ocean Park boutique escape.
Is March peak season in San Juan?
San Juan March crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit San Juan
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.