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Warmest sea in Puerto Rico in March

73 coastal locations in Puerto Rico ranked by their typical March sea temperature. Region-wide average in March: 26.9°C. The top of the list is where to find the warmest swimming this month.

Warmest in March

Mayagüez, Puerto Rico

27.2°C March mean in Puerto Rico

Regional March average

26.9°C

across all 73 coastal locations in Puerto Rico

Vs annual mean

-1.4°C

below the year-round regional average

What the Puerto Rico 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.

Puerto Rico monthly average 26.9°C to 29.7°C
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  • Warmest month September 29.7°C
  • Coldest month February 26.9°C
  • Annual mean 28.3°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 Puerto Rico month rankings:

Puerto Rico sea temperature map (live)

The map shows today's latest reading at every Puerto Rico 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 Puerto Rico 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 Mayagüez, Puerto Rico Mayagüez 27.2°C
2 Puerto Real, Puerto Rico (sub) Cabo Rojo 27.2°C
3 Punta Guanajibo, Mayagüez, Puerto Rico Cabo Rojo 27.2°C
4 Bahía Salinas, Puerto Rico Cabo Rojo 27.2°C
5 Magueyes Island, Caribbean Sea, Puerto Rico Lajas 27.2°C
6 Guanica, Puerto Rico Guánica 27.2°C
7 Peñuelas (Punta Guayanilla), Puerto Rico Peñuelas 27.2°C
8 La Parguera 27.1°C
9 Playa de Ponce, Puerto Rico Ponce 27.1°C
10 Puerto Ponce Ponce 27.1°C
11 Boqueron 27.1°C
12 Cabo Rojo 27.1°C
13 Mayaguez 27.1°C
14 Puerto Real 27.1°C
15 Capitanejo Juana Díaz 27.1°C
16 Playa Cortada, Puerto Rico Juana Díaz 27.1°C
17 Santa Isabel, Puerto Rico Santa Isabel 27.1°C
18 Ponce 27.0°C
19 Arroyo, Puerto Rico Arroyo 27.0°C
20 Jobos Guayama 27.0°C
21 Las Mareas, Puerto Rico Guayama 27.0°C
22 Palmas Arroyo 27.0°C
23 Tallaboa 27.0°C
24 Mona Island, Puerto Rico Mayagüez 27.0°C
25 Puerto Maunabo, Puerto Rico Maunabo 27.0°C
Show 25 more ▸
26 Punta Tuna Maunabo 27.0°C
27 Yabucoa Harbor, Puerto Rico Yabucoa 27.0°C
28 Jauca 27.0°C
29 Playita Cortada 27.0°C
30 Potala Pastillo 27.0°C
31 Arroyo 26.9°C
32 Central Aguirre 26.9°C
33 Lamboglia 26.9°C
34 Aguadilla, Crashboat Beach, Puerto Rico Aguadilla 26.9°C
35 Emajagua 26.9°C
36 Palmas 26.9°C
37 Punta Santiago 26.9°C
38 Naguabo, Puerto Rico Naguabo 26.9°C
39 Roosevelt Roads, Puerto Rico Ceiba 26.9°C
40 Esperanza, Vieques Island, Puerto Rico Vieques 26.9°C
41 Puerto Ferro, Isla de Vieques, Puerto Rico Vieques 26.9°C
42 Punta Mulas, Isla de Vieques, Puerto Rico Vieques 26.9°C
43 Aguadilla 26.8°C
44 Isabela 26.8°C
45 La Playa 26.8°C
46 Rincon 26.8°C
47 Fajardo, Puerto Rico Fajardo 26.8°C
48 Isla Palominos, Puerto Rico Fajardo 26.8°C
49 Playa de Fajardo, Puerto Rico Fajardo 26.8°C
50 Culebra, Puerto Rico Culebra 26.8°C

Coldest 10 in Puerto Rico in March

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

# Location March mean
1 Carolina 26.6°C
2 Loiza 26.6°C
3 Bayamn 26.6°C
4 Catano 26.6°C
5 Culebra 26.6°C
6 Flamenco Beach 26.6°C
7 Isla Verde 26.6°C
8 Levittown 26.6°C
9 San Juan 26.6°C
10 Fajardo 26.7°C

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