Swimming in Hawaii in may 2025 Sea temperature by city in may

Do you want to go to the beach in Hawaii in may 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in may in Hawaii by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Hawaii in may 2025

Here, find the average sea temperature in Hawaii in may in several coastal cities.

Direct access: O'ahu in may | Kauaʻi in may | Maui in may | Big Island in may

O'ahu in may

Honolulu (Oahu)

on average:

79°F

min: 77°F / max: 80°F

La'ie

on average:

78°F

min: 76°F / max: 80°F

Waianae

on average:

78°F

min: 77°F / max: 81°F

'Aiea

on average:

78°F

min: 76°F / max: 80°F

'Ewa Beach

on average:

79°F

min: 77°F / max: 81°F

Hale'iwa

on average:

78°F

min: 76°F / max: 80°F

Kauaʻi in may

Kauai (Garden Isle)

on average:

78°F

min: 76°F / max: 80°F

Kekaha

on average:

79°F

min: 76°F / max: 81°F

Kilauea

on average:

78°F

min: 75°F / max: 81°F

Niihau

on average:

79°F

min: 76°F / max: 81°F

Lihue

on average:

78°F

min: 75°F / max: 81°F

Anahola

on average:

78°F

min: 75°F / max: 81°F

Maui in may

Maui

on average:

78°F

min: 77°F / max: 80°F

Hana

on average:

77°F

min: 76°F / max: 80°F

Kahului

on average:

77°F

min: 76°F / max: 80°F

Molokai

on average:

78°F

min: 76°F / max: 80°F

Kahoolawe

on average:

78°F

min: 77°F / max: 80°F

Lanai

on average:

78°F

min: 77°F / max: 80°F

Big Island in may

Hilo

on average:

77°F

min: 76°F / max: 79°F

Captain Cook

on average:

78°F

min: 76°F / max: 79°F

Pahala

on average:

78°F

min: 76°F / max: 79°F

island of Hawaii (Big Island)

on average:

78°F

min: 76°F / max: 79°F

Hawaiian Ocean View

on average:

78°F

min: 77°F / max: 79°F

Hawi

on average:

78°F

min: 76°F / max: 79°F

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Sea temperature in april in Hawaii

Sea temperature in june in Hawaii

Where should you go swimming in Hawaii in the month of may?

Swimming in Hawaii in may is pleasant

In may in Hawaii swimming conditions are generally the same everywhere.

As for Honolulu (Oahu), Kauai (Garden Isle), Maui, Hilo, Captain Cook, Hana, Kahului, Kekaha, Kilauea, La'ie, Molokai, Niihau, Pahala, Waianae, island of Hawaii (Big Island), Kahoolawe, Lanai, Lihue, 'Aiea, 'Ewa Beach, Anahola, Hale'iwa, Hau'ula, Hawaiian Ocean View, Hawi, Holualoa, Honoka'a, Kailua, Kalaheo, Kaneohe, Kapaau, Kaunakakai, Kihei, Koloa, Paia, Papa'ikou, Pearl City, Waialua, Waikoloa, Wailuku, Waimanalo, Waimea and Waipahu, swimming is pleasant in may. The sea water is 79°F on average (min: 77°F/max: 80°F) so you can easily spend time in the water.

Where to go swimming in Hawaii in may: the map of sea temperatures

ideal swimming

pleasant swimming

cool swimming

cold swimming

freezing swimming

Water temperature and seasonal norms in may

Honolulu (Oahu)

	April	May	June
Average sea temperature	77°F	79°F	79°F
Minimum sea temperature	75°F	77°F	78°F
Maximum sea temperature	80°F	80°F	80°F
Average outside temperature	76°F	77°F	79°F
Maximum outside temperature	77°F	79°F	81°F
Minimum outside temperature	74°F	76°F	77°F
Precipitation	2.7in	2.8in	2in
Number of days of precipitation	3 jour(s) (11%)	3 jour(s) (10%)	2 jour(s) (5%)
Cloud cover	39%	35%	35%
Our opinion	pleasant swimming	pleasant swimming	pleasant swimming

More information on swimming in Honolulu (Oahu) in may

Kauai (Garden Isle)

	April	May	June
Average sea temperature	76°F	78°F	79°F
Minimum sea temperature	74°F	76°F	77°F
Maximum sea temperature	79°F	80°F	81°F
Average outside temperature	76°F	77°F	79°F
Maximum outside temperature	77°F	79°F	81°F
Minimum outside temperature	74°F	76°F	77°F
Precipitation	3.3in	4.2in	3.9in
Number of days of precipitation	5 jour(s) (16%)	6 jour(s) (19%)	5 jour(s) (16%)
Cloud cover	45%	41%	44%
Our opinion	pleasant swimming	pleasant swimming	pleasant swimming

More information on swimming in Kauai (Garden Isle) in may

Maui

	April	May	June
Average sea temperature	77°F	78°F	79°F
Minimum sea temperature	75°F	77°F	78°F
Maximum sea temperature	79°F	80°F	80°F
Average outside temperature	76°F	77°F	79°F
Maximum outside temperature	77°F	79°F	79°F
Minimum outside temperature	74°F	76°F	77°F
Precipitation	2in	1.1in	0.6in
Number of days of precipitation	2 jour(s) (6%)	1 jour(s) (3%)	0 jour(s) (1%)
Cloud cover	34%	29%	27%
Our opinion	pleasant swimming	pleasant swimming	pleasant swimming

More information on swimming in Maui in may

Hilo

	April	May	June
Average sea temperature	77°F	77°F	78°F
Minimum sea temperature	76°F	76°F	77°F
Maximum sea temperature	78°F	79°F	80°F
Average outside temperature	70°F	70°F	72°F
Maximum outside temperature	72°F	72°F	74°F
Minimum outside temperature	67°F	68°F	70°F
Precipitation	4.8in	4in	2.4in
Number of days of precipitation	6 jour(s) (20%)	6 jour(s) (18%)	3 jour(s) (10%)
Cloud cover	39%	35%	32%
Our opinion	pleasant swimming	pleasant swimming	pleasant swimming

More information on swimming in Hilo in may

Captain Cook

	April	May	June
Average sea temperature	77°F	78°F	79°F
Minimum sea temperature	76°F	76°F	77°F
Maximum sea temperature	79°F	79°F	80°F
Average outside temperature	68°F	70°F	72°F
Maximum outside temperature	72°F	72°F	74°F
Minimum outside temperature	67°F	68°F	70°F
Precipitation	3.3in	3.7in	2.4in
Number of days of precipitation	4 jour(s) (14%)	5 jour(s) (17%)	2 jour(s) (8%)
Cloud cover	27%	29%	32%
Our opinion	pleasant swimming	pleasant swimming	pleasant swimming

More information on swimming in Captain Cook in may

List of coastal cities in Hawaii

Honolulu (Oahu) in may	pleasant swimming
Kauai (Garden Isle) in may	pleasant swimming
Maui in may	pleasant swimming
Hilo in may	pleasant swimming
Captain Cook in may	pleasant swimming
Hana in may	pleasant swimming
Kahului in may	pleasant swimming
Kekaha in may	pleasant swimming
Kilauea in may	pleasant swimming
La'ie in may	pleasant swimming
Molokai in may	pleasant swimming
Niihau in may	pleasant swimming
Pahala in may	pleasant swimming
Waianae in may	pleasant swimming
island of Hawaii (Big Island) in may	pleasant swimming
Kahoolawe in may	pleasant swimming
Lanai in may	pleasant swimming
Lihue in may	pleasant swimming
'Aiea in may	pleasant swimming
'Ewa Beach in may	pleasant swimming
Anahola in may	pleasant swimming
Hale'iwa in may	pleasant swimming
Hau'ula in may	pleasant swimming
Hawaiian Ocean View in may	pleasant swimming
Hawi in may	pleasant swimming
Holualoa in may	pleasant swimming
Honoka'a in may	pleasant swimming
Kailua in may	pleasant swimming
Kalaheo in may	pleasant swimming
Kaneohe in may	pleasant swimming
Kapaau in may	pleasant swimming
Kaunakakai in may	pleasant swimming
Kihei in may	pleasant swimming
Koloa in may	pleasant swimming
Paia in may	pleasant swimming
Papa'ikou in may	pleasant swimming
Pearl City in may	pleasant swimming
Waialua in may	pleasant swimming
Waikoloa in may	pleasant swimming
Wailuku in may	pleasant swimming
Waimanalo in may	pleasant swimming
Waimea in may	pleasant swimming
Waipahu in may	pleasant swimming