The weather in Honolulu in August is very hot. The average temperatures are between 25°C and 27°C, drinking water regularly is advisable.
You can expect a few rainy days in Honolulu during August, but usually the weather is comfortable in August.
Our weather forecast can give you a great sense of what weather to expect in Honolulu in August 2025.
If you’re planning to visit Honolulu in the near future, we highly recommend that you review the 14 day weather forecast for Honolulu before you arrive.
Temperatures
27° / 25°
Rainy Days
1
Snowy Days
0
Dry Days
30
Rainfall
46
mm
Sun Hours
11.7
Hrs
