April · Puerto Rico
Best time to visit San Juan in April Weather, crowds & prices
Weather in San Juan in April
Average temperature 27°C, 95 mm of rain, about 28 days with 6+ hours of sunshine and 75% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
April score
8.6/10
Ranked #5 of 12 months
- Avg temp
- 27°C
- Rainfall
- 95 mm
- Humidity
- 75%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
April in San Juan scores 8.6/10 for beach and coastal travel - an above-average month (#5 of 12). Expect around 27°C, 95 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.
April ranks 5th of 12 for San Juan — one of the best windows
April averages 27°C (80°F) and humidity near 75%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rainfall runs 95 mm, so plan one flexible day in three; you still get about 28 days with 6+ hours of sunshine and 12.4 hours of daylight.
A 8.6/10 puts this among the year's best months in San Juan (5th of 12); only March scores higher, at 9.4/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in San Juan in April?
- In April, San Juan averages 27°C, 95 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.6/10.
- Is April a good time to visit San Juan?
- April earns a 8.6/10 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 April?
- Expect about 95 mm of rain in April. Average humidity is 75% and there are about 28 days with 6+ hours of sunshine.
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