Measurements:
°C
°F
Hawaii
78°F
W 6 mph
Feels like: 82°F
Precip: 100%
World Resorts USA Hawaii Weather August Weather in Hawaii

Hawaii Weather: August

Average Day Temperature: 86.9°F
Average Night Temperature: 80.8°F
Sea Water Temperature: 83.6°F
Number of Sunny Days: 15 days
Sunshine Hours: 12.6 - 13.1 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.8 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 86°F. The lowest night temperature was 78°F. The average values for day and night temperatures during August were 84.0°F и 79.8°F respectivly.

Hawaii Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Hawaii was 84.0°F. The maximum and minimum values were 83.0°F and 84.8°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Hawaii is 0.8 in. It makes august one of the least rainy months of the year.

Wind Speed in August, mph

The average wind speed in August is 15.8 mph. It makes August one of the most windy months of the year for Hawaii.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Hawaii in August is 8.7 hours.

Best Time to Visit Hawaii
The most sunny months:
January 15 days
August 15 days
June 14 days
The most warm months:
August 86.9 °F
September 86.6 °F
July 85.9 °F
Warmest sea temperature:
September 84.2 °F
October 84.0 °F
August 83.6 °F
The most cold months:
February 79.1 °F
March 79.2 °F
January 79.5 °F
The most rainy months:
February 3 days
March 2 days
October 2 days
The most windy months:
July 17 mph
August 16 mph
June 16 mph

Hawaii on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Hawaii
Local time: 22:05
05 dec, friday
0000 78°F
W
12 mph
0300 78°F
W
15 mph
0600 78°F
W
12 mph
0900 80°F
W
11 mph
1200 82°F
W
16 mph
1500 80°F
SW
21 mph
1800 78°F
SW
17 mph
2100 78°F
W
17 mph

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