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Warmest sea in Costa Rica in March

54 coastal locations in Costa Rica ranked by their typical March sea temperature. Region-wide average in March: 28.6°C. The top of the list is where to find the warmest swimming this month.

Warmest in March

Pavones

30.2°C March mean in Costa Rica

Regional March average

28.6°C

across all 54 coastal locations in Costa Rica

Vs annual mean

-0.2°C

below the year-round regional average

What the Costa Rica sea feels like in March

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.

Costa Rica monthly average 28.1°C to 29.5°C
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  • Warmest month May 29.5°C
  • Coldest month February 28.1°C
  • Annual mean 28.8°C
  • Months above 20°C 12 of 12

Where March fits in the year

March sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Costa Rica month rankings:

Costa Rica sea temperature map (live)

The map shows today's latest reading at every Costa Rica location. The list below is based on the typical March mean, useful for trip planning weeks or months ahead.

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 Costa Rica locations in March

Sorted by the typical March mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location March mean
1 Pavones 30.2°C
2 Ojochal 30.1°C
3 Uvita 30.1°C
4 Dominical 30.1°C
5 Golfito 30.1°C
6 Cano Island 30.0°C
7 San Jose 30.0°C
8 Manuel Antonio 29.9°C
9 Puerto Quepos 29.9°C
10 Quepos 29.9°C
11 Cocos Island 29.7°C
12 Jaco 29.6°C
13 Chacarita 29.5°C
14 Puntarenas 29.5°C
15 Mal Pais 29.4°C
16 Montezuma 29.4°C
17 Playa Santa Teresa 29.4°C
18 Nandayure 29.3°C
19 Playa Carrillo 29.3°C
20 Punta Islita 29.3°C
21 Nosara 29.3°C
22 Samara 29.3°C
23 Los Pargos 28.4°C
24 Marbella 28.4°C
25 Playa Avellana 28.4°C
Show 25 more ▸
26 Playa Azul 28.4°C
27 Playa Mansita 28.4°C
28 Playa Negra 28.4°C
29 Puerto Limon Limón 28.1°C
30 Cahuita 28.0°C
31 Puerto Viejo 28.0°C
32 Limon 28.0°C
33 Punta Uva 28.0°C
34 Playa Bonita 27.9°C
35 Tortuguero 27.9°C
36 Brasilito 27.6°C
37 Catalina Island 27.6°C
38 Palm Beach Estates 27.6°C
39 Playa Carbon 27.6°C
40 Playa Conchal 27.6°C
41 Playa Del Coco 27.6°C
42 Playa Flamingo 27.6°C
43 Playa Grande 27.6°C
44 Playa Hermosa 27.6°C
45 Playa Langosta 27.6°C
46 Playa Mina 27.6°C
47 Playa Nombre de Jesus 27.6°C
48 Playa Real y Roble 27.6°C
49 Playa Ventanas 27.6°C
50 Potrero 27.6°C

Coldest 10 in Costa Rica in March

Same data the other way. Helpful if you want to know which Costa Rica coasts to avoid for swimming in March.

# Location March mean
1 Papagayo 26.5°C
2 Guanacaste 27.4°C
3 Liberia 27.4°C
4 Brasilito 27.6°C
5 Catalina Island 27.6°C
6 Palm Beach Estates 27.6°C
7 Playa Carbon 27.6°C
8 Playa Conchal 27.6°C
9 Playa Del Coco 27.6°C
10 Playa Flamingo 27.6°C

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