April weather forecastEwa Beach, HI
April
Weather in April
By April, Ewa Beach sees the beginning of a pattern of declining rainfall. A notable characteristic of April is the increased daylight, which amplifies outdoor activities and beach visits. As the ocean begins to warm up, it beckons to the community for refreshing dips. The UV index remains constant, emphasizing the importance of sunscreen protection. The preserved balance between rainfall, humidity, and sunshine underline the month's appealing weather.Temperature
Ewa Beach records an average high-temperature of a still moderately hot 76.8°F (24.9°C) in April, closely mirroring the climate of the previous month. Ewa Beach indicates a consistently low-temperature of 72.1°F (22.3°C) during the nights of April.Humidity
January, April through June, August through November, with an average relative humidity of 74%, are the least humid months.Rainfall
In April, the rain falls for 16.5 days. Throughout April, 0.94" (24mm) of precipitation is accumulated. In Ewa Beach, Hawaii, during the entire year, the rain falls for 172.2 days and collects up to 12.72" (323mm) of precipitation.Ocean temperature
In Ewa Beach, the average seawater temperature in April is 77.2°F (25.1°C).Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
Daylight
In April, the average length of the day in Ewa Beach is 12h and 40min.On the first day of the month, sunrise is at 6:24 am and sunset at 6:47 pm. On the last day of April, sunrise is at 6:01 am and sunset at 6:57 pm HST.
Sunshine
In April, the average sunshine is 8.6h.UV index
January through May, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during April translates into the following guidance:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Ewa Beach, HI
- Average high temperature in April: 76.8°F
The warmest months (with the highest average high temperature) are August and September (81.5°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in April: 72.1°F
The months with the highest average low temperature are August and September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.4°F).
Average pressure in April
Ewa Beach, HI
- Average pressure in April: 30.05"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in April
Ewa Beach, HI
- Average wind speed in April: 10.9mph
The windiest month (with the highest average wind speed) is July (11.9mph).
The calmest months (with the lowest average wind speed) are January and October (9.1mph).
Average humidity in April
Ewa Beach, HI
- Average humidity in April: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in April
Ewa Beach, HI
- Average rainfall in April: 0.94"
The wettest month (with the highest rainfall) is March (1.77").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Ewa Beach, HI
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is March (18.1 days).
The month with the least rainy days is July (11.3 days).
Average sea temperature in April
Ewa Beach, HI
- Average sea temperature in April: 77.3°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in April /
Average sunshine in April
Ewa Beach, HI
- Average daylight in April: 12h and 42min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in April
Ewa Beach, HI
- Average sunshine days in April: 8.3 days
The months with the most sunshine days are July and August (15.3 days).
The month with the least sunshine days is March (6.8 days).
Average UV index in April
Ewa Beach, HI
- Average UV index in April: 6
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in April
Ewa Beach, HI
- Average cloud cover in April: 35
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in April
Ewa Beach, HI
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





