Ewa Beach
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Ewa Beach, HI

May, the last month of the spring, in Ewa Beach, is also a moderately hot month, with average temperature fluctuating between 67.5°F (19.7°C) and 84.4°F (29.1°C).
An excellent water temperature of 78.3°F (25.7°C) and 1" (25.4mm) of accumulated rainfall makes May a prime for swimming and other water activities.

Temperature

In Ewa Beach, the average high-temperature is relatively the same as in April - a still moderately hot 84.4°F (29.1°C). In May, the average low-temperature is 67.5°F (19.7°C).

Rainfall

In Ewa Beach, in May, 1" (25.4mm) of precipitation is typically accumulated. Throughout the year, 19.7" (500.5mm) of rain is accumulated.

Ocean temperature

In Ewa Beach, the average seawater temperature is 78.3°F (25.7°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 May, the average length of the day is 13.2h.

What is the temperature in May in Ewa Beach?

In May, in Ewa Beach, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 67.5°F (19.7°C).

How much does it rain in Ewa Beach in May?

Throughout May, in Ewa Beach, Hawaii, 1" (25.4mm) of precipitation is accumulated.

What is the water temperature in May in Ewa Beach?

In May, the average ocean temperature in Ewa Beach, Hawaii, is 78.3°F (25.7°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in May in Ewa Beach?

In May, the average length of the day in Ewa Beach, Hawaii, is 13.2h.
Average temperature in May - Ewa Beach, HI
  • Average high temperature in May: 84.4°F

Warmest months (with the highest average high temperature) are August and September (88.3°F).
The month with the lowest average high temperature is January (80.5°F).

  • Average low temperature in May: 67.4°F

The month with the highest average low temperature is August (71.4°F).
The coldest month (with the lowest average low temperature) is February (62.7°F).

Average rainfall in May - Ewa Beach, HI
  • Average rainfall in May: 1"

The wettest month (with the highest rainfall) is December (3.3").
Driest months (with the lowest rainfall) are June and August (0.4").

Average sea temperature in May - Ewa Beach, HI
  • Average sea temperature in May: 78.2°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 May - Ewa Beach, HI
  • Average daylight in May: 13.2h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).