Measurements:
°C
°F
CURRENT WEATHER
08:17
Oahu
76°F
SW 6 mph
Feels like: 80°F
Precip: 89%
World Resorts USA Oahu Weather

7 Day Weather Forecast

04.23
thu
DAY
82°F
SW 8 mph
precip
100%
NIGHT
74°F
SW 7 mph
precip
70%
04.24
fri
DAY
80°F
SW 9 mph
precip
0%
NIGHT
72°F
SW 7 mph
precip
77%
04.25
sat
DAY
80°F
SW 9 mph
precip
75%
NIGHT
74°F
W 7 mph
precip
89%
04.26
sun
DAY
82°F
W 7 mph
precip
0%
NIGHT
74°F
W 6 mph
precip
62%
04.27
mon
DAY
82°F
W 5 mph
precip
100%
NIGHT
74°F
W 6 mph
precip
100%
04.28
tue
DAY
80°F
W 7 mph
precip
100%
NIGHT
72°F
W 7 mph
precip
66%
04.29
wed
DAY
80°F
W 9 mph
precip
0%
NIGHT
72°F
W 7 mph
precip
21%

Oahu Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Oahu was 23.7°F. The maximum and minimum values were 23.2°F and 24.9°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
more details