Where is the sea coldest in Hawaii in April?

Big Beach in United States has the coldest sea in Hawaii in April, averaging about 21.0 °C. Hamoa Beach (21.0 °C) and Diamond Head Beach are the next coolest.

How many beaches in Hawaii are warm enough to swim in April?

20 of the top 25 ranked beaches in Hawaii average 22 °C or more in April, which most swimmers find comfortable without a wetsuit.

How are these April sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical April rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in Hawaii in April

Where the sea is coolest across Hawaii during April, ranked by long-term monthly average water temperature. Big Beach (Maui, United States) is the coolest at around 21°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Big Beach
Maui · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
April average
2
Hamoa Beach
Maui · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
April average
3
Diamond Head Beach
Oahu · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
April average
4
Little Beach Maui
Maui · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
April average
5
Napili Bay
Maui · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
21°C
April average
6
Waimanalo Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
7
Sunset Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
8
Ko Olina Lagoons
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
9
Kee Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
10
Kua Bay
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
11
Hapuna Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
12
Makalawena Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
13
Poipu Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
14
Lydgate Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
15
Papohaku Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
16
Lanikai Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
17
Bellows Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
18
Wailea Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
19
Kapalua Bay
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
20
Hookipa Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
21
Turtle Bay
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
22
Mokuleia Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
23
Polihua Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
24
Halawa Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average
25
Salt Pond Beach
Hawaii · United States · Pacific Ocean
Warm — comfortable swimming
25°C
April average

Coldest sea in April elsewhere

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Hawaii in April — frequently asked questions

Where is the sea coldest in Hawaii in April?: Big Beach in United States has the coldest sea in Hawaii in April, averaging about 21.0 °C. Hamoa Beach (21.0 °C) and Diamond Head Beach are the next coolest.
How many beaches in Hawaii are warm enough to swim in April?: 20 of the top 25 ranked beaches in Hawaii average 22 °C or more in April, which most swimmers find comfortable without a wetsuit.
How are these April sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical April rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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