Measurements:
°C
°F
Oahu
68°F
SW 7 mph
Feels like: 68°F
Precip: 60%
World Resorts USA Oahu Weather

7 Day Weather Forecast

04.03
fri
DAY
72°F
SW 9 mph
precip
100%
NIGHT
68°F
SW 7 mph
precip
72%
04.04
sat
DAY
76°F
SW 10 mph
precip
71%
NIGHT
68°F
SW 8 mph
precip
0%
04.05
sun
DAY
78°F
W 9 mph
precip
0%
NIGHT
70°F
W 7 mph
precip
0%
04.06
mon
DAY
78°F
NW 6 mph
precip
74%
NIGHT
68°F
W 4 mph
precip
87%
04.07
tue
DAY
82°F
N 4 mph
precip
24%
NIGHT
72°F
N 6 mph
precip
0%
04.08
wed
DAY
76°F
N 12 mph
precip
100%
NIGHT
74°F
N 9 mph
precip
100%
04.09
thu
DAY
74°F
NE 7 mph
precip
100%
NIGHT
72°F
N 5 mph
precip
100%

Oahu Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Oahu was 24.7°F. The maximum and minimum values were 24.3°F and 25.6°F respectively.

Oahu on the Weather Map

Best Time to Visit Oahu
The most sunny months:
January 8 days
September 6 days
August 6 days
The most warm months:
September 85.9 °F
August 85.7 °F
July 84.7 °F
Warmest sea temperature:
October 83.5 °F
September 83.4 °F
August 82.8 °F
The most cold months:
February 77.5 °F
March 78.5 °F
January 78.8 °F
The most rainy months:
March 1 day
December 1 day
February 1 day
The most windy months:
July 12 mph
May 12 mph
June 11 mph