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
79°F
min: 78°F / max: 81°F
79°F
min: 78°F / max: 80°F
80°F
min: 78°F / max: 81°F
'Aiea
79°F
min: 79°F / max: 81°F
'Ewa Beach
80°F
min: 79°F / max: 81°F
Hale'iwa
79°F
min: 78°F / max: 80°F
Kauaʻi in july
79°F
min: 79°F / max: 80°F
80°F
min: 79°F / max: 80°F
79°F
min: 79°F / max: 80°F
80°F
min: 79°F / max: 80°F
Lihue
79°F
min: 79°F / max: 80°F
Anahola
79°F
min: 78°F / max: 80°F
Maui in july
79°F
min: 77°F / max: 81°F
79°F
min: 77°F / max: 81°F
79°F
min: 77°F / max: 81°F
79°F
min: 78°F / max: 81°F
Kahoolawe
79°F
min: 78°F / max: 81°F
Lanai
79°F
min: 78°F / max: 81°F
Big Island in july
79°F
min: 77°F / max: 81°F
79°F
min: 77°F / max: 81°F
79°F
min: 77°F / max: 81°F
island of Hawaii (Big Island)
79°F
min: 77°F / max: 81°F
Hawaiian Ocean View
79°F
min: 77°F / max: 81°F
Hawi
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 swimmingWater 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 july | ideal swimming |
| Kauai (Garden Isle) in july | pleasant swimming |
| Maui in july | ideal swimming |
| Hilo in july | pleasant swimming |
| Captain Cook in july | ideal swimming |
| Hana in july | pleasant swimming |
| Kahului in july | pleasant swimming |
| Kekaha in july | ideal swimming |
| Kilauea in july | pleasant swimming |
| La'ie in july | pleasant swimming |
| Molokai in july | ideal swimming |
| Niihau in july | ideal swimming |
| Pahala in july | ideal swimming |
| Waianae in july | ideal swimming |
| island of Hawaii (Big Island) in july | ideal swimming |
| Kahoolawe in july | ideal swimming |
| Lanai in july | pleasant swimming |
| Lihue in july | ideal swimming |
| 'Aiea in july | ideal swimming |
| 'Ewa Beach in july | ideal swimming |
| Anahola in july | pleasant swimming |
| Hale'iwa in july | pleasant swimming |
| Hau'ula in july | pleasant swimming |
| Hawaiian Ocean View in july | ideal swimming |
| Hawi in july | pleasant swimming |
| Holualoa in july | pleasant swimming |
| Honoka'a in july | pleasant swimming |
| Kailua in july | ideal swimming |
| Kalaheo in july | ideal swimming |
| Kaneohe in july | ideal swimming |
| Kapaau in july | pleasant swimming |
| Kaunakakai in july | pleasant swimming |
| Kihei in july | pleasant swimming |
| Koloa in july | ideal swimming |
| Paia in july | pleasant swimming |
| Papa'ikou in july | pleasant swimming |
| Pearl City in july | ideal swimming |
| Waialua in july | pleasant swimming |
| Waikoloa in july | ideal swimming |
| Wailuku in july | pleasant swimming |
| Waimanalo in july | ideal swimming |
| Waimea in july | ideal swimming |
| Waipahu in july | ideal swimming |