May weather forecast
Halawa, HI

In May, the tropical landscape of Halawa steps closer to summer heats, bringing along a gentle rise in temperature. A more significant weather shift becomes apparent with a drop in rainfall to 3.3" (84mm), suggesting a transition into drier months. The daylight duration pushes past the 13-hour mark during May. An increase in UV index during this period demands protection against high exposure levels. Extended sunshine hours add radiance, turning Halawa into a sun-kissed paradise.

Temperature

The arrival of May in Halawa is marked by an average high-temperature of a still warm 80.6°F (27°C), bearing a close resemblance to April. In the month of May, the nighttime temperature in Halawa dips to a steady average of 64.4°F (18°C).

Rainfall

In Halawa, Hawaii, in May, it is raining for 8 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, in Halawa, there are 116 rainfall days, and 54.96" (1396mm) of precipitation is accumulated.

Ocean temperature

In Halawa, in May, the average water temperature is 77°F (25°C).
Note: Surface water temperatures falling between 77°F (25°C) and 84.2°F (29°C) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

In Halawa, the average length of the day in May is 13h and 9min.
On the first day of May, sunrise is at 5:55 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:04 pm HST.

Sunshine

The months with the most sunshine in Halawa are May through September, with an average of 9h of sunshine.

UV index

In May, the average daily maximum UV index in Halawa is 11. A UV Index of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 11 in May leads to these recommendations:
Utilize all necessary safety measures, unprotected skin could suffer burns instantly. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Apply generously and frequently reapply a sunscreen with SPF 30 or more even on cloudy days, particularly after a swim or outdoor exercise. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.