Hawaii in august: average Weather, Temperature and Climate, Where to go?
Weather in Hawaii in august 2025
Below, you have access to the weather forecast for august for most popular cities in Hawaii. These predictions are statistics for august from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in august in Honolulu (Oahu)
perfect weather UV index: 7
Weather at 6am
79°F
Partly Cloudy
52% of time
23%
16%
10%
Weather at 12pm
83°F
Clear/Sunny
57% of time
27%
13%
3%
Weather at 6pm
77°F
Partly Cloudy
33% of time
30%
29%
6%
Weather at 3am
77°F
50%
28%
15%
8%
More information about the weather in Honolulu (Oahu) in august
Where to go in Hawaii in august?
Where to go in Hawaii in august: destination map
Where to go in each region in august?
| Big Island (Hilo, Pahala, Captain Cook...) | 72°F to 81°F | 2 à 10 days | 79°F to 81°F | good weather* |
| Kauaʻi (Niihau, Kekaha, Kilauea...) | 83°F | 2 à 5 days | 81°F | good weather* |
| Maui (Molokai, Kahului, Hana...) | 81°F to 83°F | 1 à 2 days | 81°F | perfect weather |
| O'ahu (Honolulu (Oahu), Waianae, La'ie...) | 81°F to 85°F | 2 à 3 days | 81°F | good weather* |
Where should you go in Hawaii in august when it comes to the weather?
Remember:
The climate in Hawaii in august ranges from perfect to good depending on the region and city.
You are lucky: Although it is not perfect the weather in Hawaii in august is, according to seasonal norms, good in Maui, island of Hawaii (Big Island), Niihau, Kahoolawe, Oahu (Honolulu), Lanai and Molokai. I allows to savor sightseeing in these places. And even why not take a little time to take a nap at the pool under the sun!
If you do not go to spend your time in a lounger by the pool, but, for example to go sightseeing, the city of Kauai (Garden Isle) have a OK but just acceptable weather for this kind of activity in august.
Climate in Hawaii in august
Climate in Honolulu (Oahu) in august
In the month of august, the mean temperature in Oahu (Honolulu) is 81°F (maximum temperature is 83°F and minimum temperature is 79°F). The climate quite pleasant in this city in august. With just 2.5in over 3 days, rain may be scarce for your holidays.
With a good weather, the month of august is a recommended month to go in this locality in Hawaii.
| August | |||
| Average temperature | 81°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 79°F | ||
| Sea temperature | 80°F | ||
| Rainfall | 2.5in | ||
| Number of days with rainfall | 3 day(s) (9%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 35% | ||
| Length of day | 12:51 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Kauai (Garden Isle) in august
In the month of august, maximum temperature is 83°F and minimum temperature is 79°F (for an average temperature of 81°F). The climate pleasant around this city in august. With 4in over 5 days, you will experience some showers throughout your journey. But this is reasonably and it is only of temporary showers.
With proper weather, august is okay (but not the best month) for traveling in this locality.
| August | |||
| Average temperature | 81°F | ||
| Highest temperature | 83°F | ||
| Lowest temperature | 79°F | ||
| Sea temperature | 80°F | ||
| Rainfall | 4in | ||
| Number of days with rainfall | 5 day(s) (17%) | ||
| Humidity | 79% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 43% | ||
| Length of day | 12:53 | ||
| Our opinion at whereandwhen.net | good |
Climate in Maui in august
In the month of august, the mean temperature in Maui is 79°F (maximum temperature is 81°F and minimum temperature is 79°F). The climate is burning in this location in the month of august. does not rain (or really exceptionally) during the month of august. You will not get wet during your journey!
With a good climate, august is a good time to go in that area.
| August | |||
| Average temperature | 79°F | ||
| Highest temperature | 81°F | ||
| Lowest temperature | 79°F | ||
| Sea temperature | 80°F | ||
| Rainfall | 1.1in | ||
| Number of days with rainfall | 1 day(s) (4%) | ||
| Humidity | 78% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 28% | ||
| Length of day | 12:50 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Hilo in august
In the month of august, the mean temperature in Hilo is 74°F (maximum temperature is 76°F and minimum temperature is 72°F). The climate is quite enjoyable around this city in the month of august. With 5.8in over 6 days, you will experience some showers during your stay. But this is moderate and it is only of temporary showers.
With a good climate, august is a recommended month to go in Hilo.
| August | |||
| Average temperature | 74°F | ||
| Highest temperature | 76°F | ||
| Lowest temperature | 72°F | ||
| Sea temperature | 80°F | ||
| Rainfall | 5.8in | ||
| Number of days with rainfall | 6 day(s) (20%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 33% | ||
| Length of day | 12:47 | ||
| Our opinion at whereandwhen.net | good |
Climate in Captain Cook in august
In the month of august, the mean temperature in Captain Cook is 74°F (maximum temperature is 76°F and minimum temperature is 72°F). The climate is comfortable around this city in august. With 4.4in over 5 days, rainfall can happen during your journey. But this is pretty moderate and it will not be continuous.
With a correct climate, august is okay (but not the best month) for traveling in that area.
| August | |||
| Average temperature | 74°F | ||
| Highest temperature | 76°F | ||
| Lowest temperature | 72°F | ||
| Sea temperature | 80°F | ||
| Rainfall | 4.4in | ||
| Number of days with rainfall | 5 day(s) (18%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 28% | ||
| Length of day | 12:47 | ||
| Our opinion at whereandwhen.net | good |
All cities in Hawaii in august
| Honolulu (Oahu) in august | perfect weather |
| Kauai (Garden Isle) in august | good weather |
| Maui in august | perfect weather |
| Hilo in august | good weather |
| Captain Cook in august | good weather |
| Hana in august | perfect weather |
| Kahului in august | perfect weather |
| Kekaha in august | perfect weather |
| Kilauea in august | good weather |
| La'ie in august | good weather |
| Molokai in august | perfect weather |
| Niihau in august | perfect weather |
| Pahala in august | good weather |
| Waianae in august | perfect weather |
| island of Hawaii (Big Island) in august | perfect weather |
| Kahoolawe in august | perfect weather |
| Lanai in august | perfect weather |
| Lihue in august | good weather |
| 'Aiea in august | perfect weather |
| 'Ewa Beach in august | perfect weather |
| Anahola in august | good weather |
| Hale'iwa in august | good weather |
Weather data for Hawaii in august:
Weather data for Hawaii in august is derived from an average of the weather forecast since 2009 in Hawaii. There is a margin of error and these forecasts are to be considered as general information only. The weather in Hawaii can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Hawaii.