Weather in April
is slightly wet in the dry season in the Northern Mariana Islands
with an average of 5" (127mm) of rainfall. The average temperatures are in the 74°F (23.3°C) to 83°F (28.3°C) with 7 hours of bright sunshine and relative humidity less than 75%. The mostly clear skies extend the visibility beyond 6 to 8 miles on land as well as sea.
The sunny days are perfect for scuba diving along Saipan's northeast coast or swim in the clear waters of the coral-filled Managaha islet. Wind speeds at Tinian International Airport frequently register in the 15 to 20mph (32.2km/h) range. The cliffs on the islands provide a 360-degree view of the surrounding landscape, and some of them have memorials from famous battles. Expect rain in the afternoons.
April is usually a favorable time to visit the Northern Mariana Islands for those who do not mind a little rain.