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Warmest beach in Hawaii in August

111 coastal locations in Hawaii ranked by their typical August sea temperature. State-wide average in August: 26.9°C.

Warmest in August

Laysan Island, Hawaii

27.7°C

State August average

26.9°C

across 111 coastal locations in Hawaii

Vs annual mean

+1.1°C

above the year-round state average

What the Hawaii water feels like in August

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Hawaii monthly average 24.4°C to 27.2°C
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  • Warmest month September 27.2°C
  • Coldest month March 24.4°C
  • Annual mean 25.8°C
  • Months above 20°C 12 of 12

Where August fits in the year

August sits inside the state pattern shown on the left. Browse a different month for a fresh ranking.

Hawaii sea temperature map (live)

Today's reading at every Hawaii beach we track. The list below uses the typical August mean from a decade of daily history.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Hawaii beaches in August

Sorted by typical August mean. Click any beach for the full location page.

# Location August mean
1 Laysan Island, Hawaii Hawaii 27.7°C
2 Napoopoo, Kealakekua Bay, Hawaii Island, Hawaii Hawaii 27.4°C
3 East Island, French Frigate Shoals, Hawaii Hawaii 27.4°C
4 French Frigate Shoals Hawaii 27.4°C
5 Eleele Hawaii 27.3°C
6 Hanapepe Hawaii 27.3°C
7 Kealakekua Bay Hawaii 27.3°C
8 Kekaha Hawaii 27.3°C
9 Lihue Hawaii 27.3°C
10 Poipu Hawaii 27.3°C
11 Nonopapa, Niihau Island, Hawaii Hawaii 27.3°C
12 Island of Hawaii Hawaii 27.3°C
13 Kahaluu-Keauhou Hawaii 27.3°C
14 Kailua Kona Hawaii 27.3°C
15 Port Allen, Hanapepe Bay, Kauai Island Hawaii 27.3°C
16 Waimea Bay, Kauai Island, Hawaii Hawaii 27.3°C
17 Hanamaulu Bay, Kauai Island, Hawaii Hawaii 27.2°C
18 Nawiliwili, Nawiliwili Harbor, Kauai Island Hawaii 27.2°C
19 Waianae, Oahu Island, Hawaii Hawaii 27.1°C
20 Kaumalapau, Lanai Island, Hawaii Hawaii 27.1°C
21 Kua Bay Hawaii 27.1°C
22 Hapuna Beach Hawaii 27.1°C
23 Puako Hawaii 27.1°C
24 Waikoloa Village Hawaii 27.1°C
25 Kuheia Bay, Kahoolawe Island, Hawaii Hawaii 27.0°C
Show 25 more ▸
26 Smuggler Cove, Kahoolawe Island, Hawaii Hawaii 27.0°C
27 Ewa Beach Hawaii 27.0°C
28 Fort Kamehameha, Bishop Point, Pearl Harbor, Oahu Island Hawaii 27.0°C
29 Honolulu, Honolulu Harbor, Oahu Island Hawaii 27.0°C
30 Ko Olina Hawaii 27.0°C
31 Maili Hawaii 27.0°C
32 Makaha Hawaii 27.0°C
33 Moku o Loe, Kaneohe Bay, Oahu Island Hawaii 27.0°C
34 Nanakuli Hawaii 27.0°C
35 Oahu Hawaii 27.0°C
36 Pearl Harbor, Ford Island Ferry Dock, Oahu Island Hawaii 27.0°C
37 Waianae Hawaii 27.0°C
38 Waipahu Hawaii 27.0°C
39 Kaunakakai Harbor, Molokai Island Hawaii 27.0°C
40 Kolo, Molokai Island, Hawaii Hawaii 27.0°C
41 Haleiwa, Waialua Bay, Oahu Island, Hawaii Hawaii 26.9°C
42 Hanalei Bay, Kauai Island, Hawaii Hawaii 26.9°C
43 Mahukona, Hawaii Island, Hawaii Hawaii 26.9°C
44 Lanai Hawaii 26.9°C
45 Kauai Hawaii 26.9°C
46 Kawaihae Hawaii 26.9°C
47 Kamalo Harbor, Molokai Island, Hawaii Hawaii 26.9°C
48 Makena, Maui Island, Hawaii Hawaii 26.9°C
49 Pukoo Harbor, Molokai Island, Hawaii Hawaii 26.9°C
50 Hanauma Bay, Oahu Island, Hawaii Hawaii 26.8°C

Coldest 10 in Hawaii in August

Same data the other way.

# Location August mean
1 Hana, Maui Island, Hawaii Hawaii 26.5°C
2 Hana Hawaii 26.6°C
3 Honuapo, Hawaii Island, Hawaii Hawaii 26.6°C
4 Hilo Bay Hawaii 26.6°C
5 Hilo, Hilo Bay, Kuhio Bay Island Hawaii 26.6°C
6 Kahului Hawaii 26.7°C
7 Kihei Hawaii 26.7°C
8 Maui Hawaii 26.7°C
9 Paia Hawaii 26.7°C
10 Sugar Beach Hawaii 26.7°C

Other US states

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