World Resorts USA Oahu Weather

Oahu weather in August

Weather in Oahu: August

Average day temperature: 82.1°F
Average night temperature: 74.9°F
Sea water temperature: 79.6°F
Number of sunny days: 6 days
Day length: 12.6 - 13.1 hours
Number of rainy days: 0 days
Precipitation totals: 0.2 in.

Air temperature in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day temperature   
Night temperature

The highest day temperature during August of 2024 was 83°F. At the same time the lowest night temperature was 73°F. Daily and nightly averages during August were 80.8°F and 75.1°F.

Sea water temperature in Oahu in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
74
76
78
80
82
84
86

The average sea water temperature in August of 2024 was 78.8°F. The highest and lowest sea temperatures during the month were 79.2°F and 78.3°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
19%
58%
23%

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.1
0.3
0.4
0.6
0.7
0.9
1.0

Precipitation total value in Oahu in August is 0.2 in. Other months of the year show relatively similar values.

Wind speed in August, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.3
4.7
7.0
9.3
11.7
14.0
16.3
18.6
10.0
11.1
8.5
10.7
13.6
11.8
10.7
11.2
11.4
11.0
9.1
10.0
11.1
8.5
10.7
11.9
13.6
11.8
10.7
11.2
11.4
11.0
9.1

The average wind speed value in August is 11.9 mph It makes August one of the most windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.3
2.5
3.8
5.1
6.3
7.6
8.9
5.4
5.5
6.1
6.7
6.5
7.4
5.9
4.9
5.6
5.6
5.8
5.4
5.5
6.1
6.7
6.9
6.5
7.4
5.9
4.9
5.6
5.6
5.8

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 6.9.

Best time for vacation in Oahu

Sunniest months:
January 8 days
September 6 days
August 6 days
Warmest months:
September 82.5 °F
August 82.1 °F
July 81.3 °F
Warmest sea temp:
October 80.2 °F
September 80.1 °F
August 79.5 °F
Coldest months:
February 75.3 °F
March 76.0 °F
January 76.2 °F
Rainiest months:
March 1 day
December 1 day
April 1 day
Windiest months:
July 13.6 mph
August 11.9 mph
June 11.8 mph

Oahu on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+36°F
+45°F
+73°F
+73°F
+63°F
+57°F
+66°F
+39°F
+63°F
+57°F
+52°F
+57°F
+61°F
+64°F
+48°F
24 Hours Forecast
Oahu
Local time: 23:07
April 13, sunday
0000
73°F
W
21 mph
0300
73°F
SW
22 mph
0600
73°F
W
21 mph
0900
75°F
W
21 mph
1200
77°F
SW
21 mph
1500
75°F
SW
20 mph
1800
75°F
SW
17 mph
2100
73°F
SW
17 mph
Units of measurement: °C / °F