San Juan, Puerto Rico weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Good
Best time to visit: December – April
What is the weather like in San Juan, Puerto Rico in April?
In April, San Juan, Puerto Rico is hot: daytime highs average 30 °C, and even at night it stays warm at around 22 °C. The sea averages 26.7 °C – lovely and warm for swimming. With around 9 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 76 mm in total. On about 15 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in San Juan, Puerto Rico.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 12 h 33 min06:08 – 18:41
- UV index
- 12 · extremeclear sky, noon (estimate)
- Muggy days
- 28 daysdew point 18 °C or more
- Wind
- 19 km/haverage daily peak
- Cloud cover
- 45 %on average
- Hot days
- 15 days30 °C or more
- Time zone
- UTC−4America/Puerto_Rico
How the score comes together
- Temperatureweight 50 %63 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %47 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
San Juan, Puerto Rico in April: quick answers
Is San Juan, Puerto Rico hot in April?
Yes. In April, San Juan, Puerto Rico is hot: daytime highs average 30 °C and nights stay around 22 °C. On about 15 days the thermometer climbs to 30 °C or more.
Can you swim in San Juan, Puerto Rico in April?
Yes. In April the sea averages 26.7 °C – lovely and warm for swimming.
Does it rain much in San Juan, Puerto Rico in April?
Rain is frequent, with about 11 rainy days and 76 mm in total.
San Juan, Puerto Rico month by month
The whole year in San Juan, Puerto RicoAll destinations: Puerto Rico
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)