Measurements:
°C
°F
CURRENT WEATHER
09:14
Oahu
80°F
W 6 mph
Feels like: 84°F
Precip: 8%
World Resorts USA Oahu Weather

7 Day Weather Forecast

08.05
wed
DAY
86°F
SW 6 mph
precip
13%
NIGHT
76°F
W 7 mph
precip
21%
08.06
thu
DAY
84°F
W 7 mph
precip
17%
NIGHT
76°F
SW 6 mph
precip
24%
08.07
fri
DAY
84°F
W 8 mph
precip
3%
NIGHT
78°F
W 9 mph
precip
23%
08.08
sat
DAY
82°F
W 12 mph
precip
17%
NIGHT
76°F
W 10 mph
precip
20%
08.09
sun
DAY
78°F
SW 9 mph
precip
29%
NIGHT
76°F
W 8 mph
precip
26%
08.10
mon
DAY
84°F
W 9 mph
precip
19%
NIGHT
76°F
W 6 mph
precip
22%
08.11
tue
DAY
86°F
W 10 mph
precip
11%
NIGHT
76°F
W 9 mph
precip
14%

Oahu Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Oahu was 26.4°F. The maximum and minimum values were 25.9°F and 26.8°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 84.5 °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
April 1 day
December 1 day
The most windy months:
July 12 mph
May 11 mph
August 11 mph
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