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With daytime temperatures of 29°C (84°F) and nighttime lows of 23°C (73°F), April in Rio Grande brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 90 mm (3.5 in) falls on average.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in Rio Grande - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Rio Grande typically stay consistent throughout April, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Rio Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on weather observations in Rio Grande between 1976 and 2026, these are the recorded extremes during April.
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in April →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in April. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 27°C (81°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rio Grande climate overview or explore weather in Puerto Rico.
Where to go in April - average daytime high across popular destinations.
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