Measurements:
°C
°F
CURRENT WEATHER
08:22
Oahu
80°F
W 4 mph
Feels like: 82°F
Precip: 15%
World Resorts USA Oahu Weather

7 Day Weather Forecast

07.15
wed
DAY
86°F
NW 3 mph
precip
13%
NIGHT
74°F
W 4 mph
precip
26%
07.16
thu
DAY
84°F
W 9 mph
precip
13%
NIGHT
76°F
W 7 mph
precip
20%
07.17
fri
DAY
84°F
SW 11 mph
precip
12%
NIGHT
74°F
SW 7 mph
precip
13%
07.18
sat
DAY
86°F
W 9 mph
precip
4%
NIGHT
76°F
W 9 mph
precip
14%
07.19
sun
DAY
84°F
SW 10 mph
precip
3%
NIGHT
76°F
SW 7 mph
precip
18%
07.20
mon
DAY
84°F
SW 9 mph
precip
6%
NIGHT
74°F
SW 7 mph
precip
19%
07.21
tue
DAY
84°F
W 10 mph
precip
10%
NIGHT
76°F
W 7 mph
precip
28%

Oahu Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Oahu was 25.7°F. The maximum and minimum values were 25.4°F and 26.0°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
April 1 day
December 1 day
The most windy months:
July 12 mph
May 11 mph
August 11 mph
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