Hawaii in may: average Weather, Temperature and Climate, Where to go?
Weather in Hawaii in may 2026
Here, you have access to the weather forecast for may for most popular cities in Hawaii. These forecasts are probabilities for may from weather reports for over 10 years. The percentage indicates the possibility of having the weather indicated.
Average weather in may in Honolulu (Oahu)
perfect weather UV index: 6
Weather at 6am
77°F
Partly Cloudy
40% of time
34%
18%
7%
Weather at 12pm
79°F
Clear/Sunny
49% of time
23%
23%
4%
Weather at 6pm
76°F
Moderate rain at times
37% of time
30%
25%
6%
Weather at 3am
76°F
40%
28%
25%
7%
More information about the weather in Honolulu (Oahu) in may
Where to go in Hawaii in may?
Where to go in Hawaii in may: destination map
Where to go in each region in may?
| Big Island (Hilo, Pahala, Captain Cook...) | 68°F to 77°F | 2 à 10 days | 77°F to 79°F | good weather* |
| Kauaʻi (Niihau, Kekaha, Kilauea...) | 79°F | 4 à 6 days | 79°F | good weather* |
| Maui (Molokai, Kahului, Hana...) | 77°F to 81°F | 1 à 2 days | 77°F to 79°F | perfect weather |
| O'ahu (Honolulu (Oahu), Waianae, La'ie...) | 79°F to 81°F | 3 à 5 days | 79°F | good weather* |
Where should you go in Hawaii in may when it comes to the weather?
Remember:
The climate in Hawaii in may ranges from perfect to good depending on the region and city.
In may the weather is perfect in Hawaii, but only part of the territory: in Maui, Kahoolawe, Lanai and Molokai. In these places, these perfect weather conditions will allow you to savor fully your vacations: the sun is guaranteed, precipitations are scarce and the humidity is not too high. It is therefore the ideal month to go to these cities!
Apart from of Maui, Kahoolawe, Lanai and Molokai, the weather is still good in the cities of Niihau, Oahu (Honolulu) and Kauai (Garden Isle). Around here, temperatures are pleasing and allow you to visit - and why not do a bit of sunbathing in the sun!
If you do not go the sun and blue sky, but, for example to go sightseeing, the city of island of Hawaii (Big Island) have a just ok weather for that in may.
Climate in Hawaii in may
Climate in Honolulu (Oahu) in may
In the month of may, maximum temperature is 79°F and minimum temperature is 76°F (for an average temperature of 77°F). The climate quite enjoyable in this city in this month. With about 2.8in over 3 days, the rain will not be a problem throughout your vacations.
With a good weather, the month of may is a good month to go there.
| May | |||
| Average temperature | 77°F | ||
| Highest temperature | 79°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 79°F | ||
| Rainfall | 2.8in | ||
| Number of days with rainfall | 3 day(s) (10%) | ||
| Humidity | 76% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 35% | ||
| Length of day | 13:10 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Kauai (Garden Isle) in may
In the month of may, the mean temperature in Kauai (Garden Isle) is 77°F (maximum temperature is 79°F and minimum temperature is 76°F). The climate quite pleasant in this location in this month. With 4.2in over 6 days, you will experience some showers during your journey. But this is rather moderate and you will not be too bothered by it.
With a good weather, the month of may is a good time to go in this city.
| May | |||
| Average temperature | 77°F | ||
| Highest temperature | 79°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 78°F | ||
| Rainfall | 4.2in | ||
| Number of days with rainfall | 6 day(s) (19%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 41% | ||
| Length of day | 13:12 | ||
| Our opinion at whereandwhen.net | good |
Climate in Maui in may
In may, maximum temperature is 79°F and minimum temperature is 76°F (for an average temperature of 77°F). The climate comfortable in this location in the month of may. With about 1.1in over 1 days, the rain will not be a problem throughout your holidays.
With ideal weather conditions, may is a recommended time to go there in Hawaii.
| May | |||
| Average temperature | 77°F | ||
| Highest temperature | 79°F | ||
| Lowest temperature | 76°F | ||
| Sea temperature | 78°F | ||
| Rainfall | 1.1in | ||
| Number of days with rainfall | 1 day(s) (3%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 29% | ||
| Length of day | 13:08 | ||
| Our opinion at whereandwhen.net | perfect |
Climate in Hilo in may
In the month of may, the mean temperature in Hilo is 70°F (maximum temperature is 72°F and minimum temperature is 68°F). The climate is quite comfortable there in the month of may. With 4in over 6 days, you risk getting wet slightly during your stay. But this is reasonably and you will not be too bothered by it.
With good weather conditions, may is a good time to go in that area in Hawaii.
| May | |||
| Average temperature | 70°F | ||
| Highest temperature | 72°F | ||
| Lowest temperature | 68°F | ||
| Sea temperature | 77°F | ||
| Rainfall | 4in | ||
| Number of days with rainfall | 6 day(s) (18%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 35% | ||
| Length of day | 13:04 | ||
| Our opinion at whereandwhen.net | good |
Climate in Captain Cook in may
In the month of may, maximum temperature is 72°F and minimum temperature is 68°F (for an average temperature of 70°F). The climate is quite enjoyable in this location in this month. With 3.7in over 5 days, rain may occur throughout your trip. But this is pretty reasonably and it is only of temporary showers.
With a correct weather, the month of may is okay (but not good month) for traveling in Captain Cook.
| May | |||
| Average temperature | 70°F | ||
| Highest temperature | 72°F | ||
| Lowest temperature | 68°F | ||
| Sea temperature | 78°F | ||
| Rainfall | 3.7in | ||
| Number of days with rainfall | 5 day(s) (17%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 13 | ||
| Cloud cover | 29% | ||
| Length of day | 13:04 | ||
| Our opinion at whereandwhen.net | good |
All cities in Hawaii in may
| Honolulu (Oahu) in may | perfect weather |
| Kauai (Garden Isle) in may | good weather |
| Maui in may | perfect weather |
| Hilo in may | good weather |
| Captain Cook in may | good weather |
| Hana in may | perfect weather |
| Kahului in may | perfect weather |
| Kekaha in may | perfect weather |
| Kilauea in may | good weather |
| La'ie in may | good weather |
| Molokai in may | perfect weather |
| Niihau in may | perfect weather |
| Pahala in may | good weather |
| Waianae in may | perfect weather |
| island of Hawaii (Big Island) in may | perfect weather |
| Kahoolawe in may | perfect weather |
| Lanai in may | perfect weather |
| Lihue in may | good weather |
| 'Aiea in may | perfect weather |
| 'Ewa Beach in may | perfect weather |
| Anahola in may | good weather |
| Hale'iwa in may | good weather |
Weather data for Hawaii in may:
Weather data for Hawaii in may 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.