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

Do you want to go to the beach in Hawaii in july 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 july in Hawaii by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Hawaii in july 2025

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

O'ahu in july

on average:

79°F

min: 78°F / max: 81°F

on average:

79°F

min: 78°F / max: 80°F

on average:

80°F

min: 78°F / max: 81°F

'Aiea

on average:

79°F

min: 79°F / max: 81°F

'Ewa Beach

on average:

80°F

min: 79°F / max: 81°F

Hale'iwa

on average:

79°F

min: 78°F / max: 80°F

Kauaʻi in july

on average:

79°F

min: 79°F / max: 80°F

on average:

80°F

min: 79°F / max: 80°F

on average:

79°F

min: 79°F / max: 80°F

on average:

80°F

min: 79°F / max: 80°F

Lihue

on average:

79°F

min: 79°F / max: 80°F

Anahola

on average:

79°F

min: 78°F / max: 80°F

Maui in july

on average:

79°F

min: 77°F / max: 81°F

on average:

79°F

min: 77°F / max: 81°F

on average:

79°F

min: 77°F / max: 81°F

on average:

79°F

min: 78°F / max: 81°F

Kahoolawe

on average:

79°F

min: 78°F / max: 81°F

Lanai

on average:

79°F

min: 78°F / max: 81°F

Big Island in july

on average:

79°F

min: 77°F / max: 81°F

on average:

79°F

min: 77°F / max: 81°F

on average:

79°F

min: 77°F / max: 81°F

island of Hawaii (Big Island)

on average:

79°F

min: 77°F / max: 81°F

Hawaiian Ocean View

on average:

79°F

min: 77°F / max: 81°F

Hawi

on average:

79°F

min: 77°F / max: 81°F

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

Swimming in Hawaii in july is ideal (in the best case scenario)

In july in Hawaii swimming conditions vary by city. Details below:

In july in Honolulu (Oahu), Maui, Captain Cook, Kekaha, Molokai, Niihau, Pahala, Waianae, island of Hawaii (Big Island), Kahoolawe, Lihue, 'Aiea, 'Ewa Beach, Hawaiian Ocean View, Kailua, Kalaheo, Kaneohe, Koloa, Pearl City, Waikoloa, Waimanalo, Waimea and Waipahu, swimming conditions are perfect! With water reaching a maximum of 81°F and an average of 79°F, going in the water (and staying there!) feels great.

As for Kauai (Garden Isle), Hilo, Hana, Kahului, Kilauea, La'ie, Lanai, Anahola, Hale'iwa, Hau'ula, Hawi, Holualoa, Honoka'a, Kapaau, Kaunakakai, Kihei, Paia, Papa'ikou, Waialua and Wailuku, swimming is pleasant in july. The sea water is 79°F on average (min: 79°F/max: 80°F) so you can easily spend time in the water.

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

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in july

Honolulu (Oahu)

July
Average sea temperature 79°F
Minimum sea temperature 78°F
Maximum sea temperature 81°F
Average outside temperature 81°F
Maximum outside temperature 83°F
Minimum outside temperature 79°F
Precipitation 1.6in
Number of days of precipitation 2 jour(s)
(5%)
Cloud cover 36%
Our opinion ideal swimming

More information on swimming in Honolulu (Oahu) in july

Kauai (Garden Isle)

July
Average sea temperature 79°F
Minimum sea temperature 79°F
Maximum sea temperature 80°F
Average outside temperature 79°F
Maximum outside temperature 81°F
Minimum outside temperature 79°F
Precipitation 4.1in
Number of days of precipitation 6 jour(s)
(20%)
Cloud cover 43%
Our opinion pleasant swimming

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

Maui

July
Average sea temperature 79°F
Minimum sea temperature 77°F
Maximum sea temperature 81°F
Average outside temperature 79°F
Maximum outside temperature 81°F
Minimum outside temperature 77°F
Precipitation 0.6in
Number of days of precipitation 0 jour(s)
(1%)
Cloud cover 28%
Our opinion ideal swimming

More information on swimming in Maui in july

Hilo

July
Average sea temperature 79°F
Minimum sea temperature 77°F
Maximum sea temperature 81°F
Average outside temperature 74°F
Maximum outside temperature 76°F
Minimum outside temperature 72°F
Precipitation 3.5in
Number of days of precipitation 5 jour(s)
(15%)
Cloud cover 32%
Our opinion pleasant swimming

More information on swimming in Hilo in july

Captain Cook

July
Average sea temperature 79°F
Minimum sea temperature 77°F
Maximum sea temperature 81°F
Average outside temperature 74°F
Maximum outside temperature 76°F
Minimum outside temperature 70°F
Precipitation 3.2in
Number of days of precipitation 4 jour(s)
(12%)
Cloud cover 30%
Our opinion ideal swimming

More information on swimming in Captain Cook in july

List of coastal cities in Hawaii

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