Where is the sea warmest in North America in March?

Playa Flamingo in Costa Rica has the warmest sea in North America in March, averaging about 28.0 °C. Playa Hermosa CR (28.0 °C) and Playa Samara follow close behind.

How many beaches in North America are warm enough to swim in March?

25 of the top 25 ranked beaches in North America average 22 °C or more in March, which most swimmers find comfortable without a wetsuit.

How are these March sea temperatures calculated?

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

Seasonal ranking

Warmest sea temperature in North America in March

Where the sea is warmest across North America during March, ranked by long-term monthly average water temperature. Playa Flamingo (Guanacaste, Costa Rica) tops the list at around 28°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Playa Flamingo
Guanacaste · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
2
Playa Hermosa CR
Guanacaste · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
3
Playa Samara
Guanacaste · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
4
Playa Nosara
Guanacaste · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
5
Playa Avellanas
Guanacaste · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
6
Santa Teresa Beach
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
7
Mal Pais Beach
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
8
Montezuma Beach
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
9
Manuel Antonio Beach
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
10
Playa Dominical
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
11
Playa Uvita
Puntarenas · Costa Rica · Pacific Ocean
Warm — comfortable swimming
28°C
March average
12
Playa Bonita Panama
Panama · Panama · Pacific Ocean
Warm — comfortable swimming
28°C
March average
13
Playa Blanca Panama
Cocle · Panama · Pacific Ocean
Warm — comfortable swimming
28°C
March average
14
San Juan del Sur Beach
Rivas · Nicaragua · Pacific Ocean
Warm — comfortable swimming
28°C
March average
15
Playa Popoyo
Rivas · Nicaragua · Pacific Ocean
Warm — comfortable swimming
28°C
March average
16
Boston Bay
Portland · Jamaica · Caribbean Sea
Warm — comfortable swimming
27°C
March average
17
James Bond Beach
Saint Mary · Jamaica · Caribbean Sea
Warm — comfortable swimming
27°C
March average
18
Seven Mile Beach
Westmoreland · Jamaica · Caribbean Sea
Warm — comfortable swimming
27°C
March average
19
Doctor's Cave Beach
Saint James · Jamaica · Caribbean Sea
Warm — comfortable swimming
27°C
March average
20
Treasure Beach
Saint Elizabeth · Jamaica · Caribbean Sea
Warm — comfortable swimming
27°C
March average
21
Reduit Beach
Gros Islet · Saint Lucia · Caribbean Sea
Warm — comfortable swimming
27°C
March average
22
Anse Chastanet
Soufriere · Saint Lucia · Caribbean Sea
Warm — comfortable swimming
27°C
March average
23
Marigot Bay Beach
Castries · Saint Lucia · Caribbean Sea
Warm — comfortable swimming
27°C
March average
24
Vigie Beach
Castries · Saint Lucia · Caribbean Sea
Warm — comfortable swimming
27°C
March average
25
Grand Anse Beach
Saint George · Grenada · Caribbean Sea
Warm — comfortable swimming
27°C
March average

Warmest sea in March elsewhere

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North America in March — frequently asked questions

Where is the sea warmest in North America in March?: Playa Flamingo in Costa Rica has the warmest sea in North America in March, averaging about 28.0 °C. Playa Hermosa CR (28.0 °C) and Playa Samara follow close behind.
How many beaches in North America are warm enough to swim in March?: 25 of the top 25 ranked beaches in North America average 22 °C or more in March, which most swimmers find comfortable without a wetsuit.
How are these March sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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