April weather forecast
Halawa, HI

April witnesses a step up in the thermal scale of Halawa, nudging the lower limit to 63°F (17.2°C), and the upper limit to 79°F (26.1°C). In terms of precipitation, April brings relief as rainfall dwindles to 5.5" (140mm). The daylight duration witnesses a substantial increase this month, and the sunshine indexes rise in tandem. April registers an impressive surge in UV index figures as well. Ocean lovers find the sea temperature remaining stable, allowing for continual water exploits.

Temperature

During April, Halawa observes a subtle ascent to a still moderately hot 78.8°F (26°C) from March's 77°F (25°C) in the average high-temperature. In the month of April, Halawa's average low-temperature falls to a refreshing 62.6°F (17°C).

Rainfall

In Halawa, in April, it is raining for 12 days, with typically 5.51" (140mm) of accumulated precipitation. In Halawa, during the entire year, the rain falls for 116 days and collects up to 54.96" (1396mm) of precipitation.

Ocean temperature

January through April, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater.
Note: Given an individual's cold sensitivity, considering factors like sunshine, wind, and air temperature, a brief swim in 75.2°F (24°C) water might be pleasurable. (FYI: The standard water temperature for Olympic swimming contests is 77°F (25°C) to 82.4°F (28°C).)

Daylight

In April, the average length of the day is 12h and 39min.
On the first day of the month, sunrise is at 6:19 am and sunset at 6:41 pm. On the last day of April, sunrise is at 5:56 am and sunset at 6:51 pm HST.

Sunshine

In April, the average sunshine is 8h.

UV index

In April, the average daily maximum UV index is 11. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In April, a daily UV index of 11 turns into the following recommendations:
Implement every essential safety step. Individuals with fair skin might receive burns in less than 5 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Direct sunlight can be harmful over extended periods, especially for those prone to sunburns. Use a sunscreen of 30 SPF or higher for protection. Caution! The Sun's UV intensity grows with reflections off sand and water.