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Kailua Kona Weather

Kailua Kona 14 Days Forecast

20.07
mon

Day

81°F

NE 9 mph

Precip.
12%

Night

77°F

NE 2 mph

Precip.
15%

21.07
tue

Day

81°F

E 6 mph

Precip.
17%

Night

77°F

SE 6 mph

Precip.
39%

22.07
wed

Day

79°F

NE 7 mph

Precip.
36%

Night

77°F

SE 6 mph

Precip.
30%

23.07
thu

Day

81°F

NE 9 mph

Precip.
17%

Night

77°F

N 1 mph

Precip.
20%

24.07
fri

Day

81°F

E 6 mph

Precip.
12%

Night

77°F

E 3 mph

Precip.
16%

25.07
sat

Day

81°F

NE 5 mph

Precip.
13%

Night

77°F

E 6 mph

Precip.
27%

26.07
sun

Day

81°F

E 4 mph

Precip.
5%

Night

77°F

N 2 mph

Precip.
17%

27.07
mon

Day

79°F

E 6 mph

Precip.
14%

Night

75°F

NE 4 mph

Precip.
29%

28.07
tue

Day

77°F

E 6 mph

Precip.
14%

Night

77°F

NW 2 mph

Precip.
9%

29.07
wed

Day

81°F

E 5 mph

Precip.
14%

Night

77°F

E 3 mph

Precip.
14%

30.07
thu

Day

81°F

E 6 mph

Precip.
14%

Night

77°F

E 4 mph

Precip.
20%

31.07
fri

Day

81°F

NE 8 mph

Precip.
16%

Night

77°F

SE 6 mph

Precip.
17%

01.08
sat

Day

81°F

E 7 mph

Precip.
17%

Night

77°F

NE 3 mph

Precip.
28%

02.08
sun

Day

81°F

NE 6 mph

Precip.
13%

Night

77°F

SE 6 mph

Precip.
27%

sea water
temperature

Kailua Kona

monthly
weather

Kailua Kona

current
weather

Kailua Kona

7 days
forecast

Kailua Kona

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in July of 2026 was 81.0°F. The highest and lowest sea temperatures during the month were 81.7°F and 80.1°F.

Show year:

2025

2024

2023

The average sea water temperature in August of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 81.1°F and 80.6°F.