March · Puerto Rico
Best time to visit San Juan in March Weather, crowds & prices
Weather in San Juan in March
Average temperature 26°C, 47 mm of rain, about 28 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
March score
9.4/10
Ranked #1 of 12 months
- Avg temp
- 26°C
- Rainfall
- 47 mm
- Humidity
- 73%
- Days with 6h+ sun
- 28
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
March in San Juan scores 9.4/10 for beach and coastal travel - the single best month of the year. Expect around 26°C, 47 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Old San Juan's blue cobbles, fortresses and salsa bars face the Atlantic in Puerto Rico's capital.
March: the best month of the year in San Juan
Days in March average 26°C (79°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 47 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 11.9 hours of daylight to work around it.
On our climate-comfort scale this is the top-ranked month of the year for San Juan at 9.4/10 — the reference point every other month on this page is measured against.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in San Juan in March?
- In March, San Juan averages 26°C, 47 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 9.4/10.
- Is March a good time to visit San Juan?
- March earns a 9.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in San Juan in March?
- Expect about 47 mm of rain in March. Average humidity is 73% and there are about 28 days with 6+ hours of sunshine.
Curated in San Juan
Tickets & experiences
Things to do in San Juan
San Juan, Puerto Rico. Live activities and tours from GetYourGuide, matched to this destination.