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Coldest sea in Puerto Rico in December

73 coastal locations in Puerto Rico ranked by typical December sea temperature, coldest first. Region-wide average in December: 28.0°C.

Coldest in December

Culebra

27.8°C December mean in Puerto Rico

Regional December average

28.0°C

across all 73 coastal locations in Puerto Rico

Vs annual mean

-0.3°C

below the year-round regional average

What the Puerto Rico sea feels like in December

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 December fits in the year

December 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 December mean.

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 coldest Puerto Rico locations in December

Sorted by typical December mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location December mean
1 Culebra 27.8°C
2 Flamenco Beach 27.8°C
3 Carolina 27.9°C
4 Esperanza 27.9°C
5 Fajardo 27.9°C
6 Isabel Segunda 27.9°C
7 Loiza 27.9°C
8 Luquillo 27.9°C
9 Playa Fortuna 27.9°C
10 Vieques 27.9°C
11 Culebrita, Isla, Puerto Rico Culebra 27.9°C
12 Jobos 27.9°C
13 Bayamn 27.9°C
14 Catano 27.9°C
15 Isla Verde 27.9°C
16 Levittown 27.9°C
17 San Juan 27.9°C
18 Culebra, Puerto Rico Culebra 27.9°C
19 Ensenada Honda, Culebra Island, Puerto Rico Culebra 27.9°C
20 Arecibo 27.9°C
21 Esperanza, Vieques Island, Puerto Rico Vieques 27.9°C
22 Fajardo, Puerto Rico Fajardo 27.9°C
23 Isla Palominos, Puerto Rico Fajardo 27.9°C
24 Playa de Fajardo, Puerto Rico Fajardo 27.9°C
25 Puerto Ferro, Isla de Vieques, Puerto Rico Vieques 27.9°C
Show 25 more ▸
26 Punta Mulas, Isla de Vieques, Puerto Rico Vieques 27.9°C
27 Bayamón Bayamón 27.9°C
28 Carrizales 27.9°C
29 Hatillo 27.9°C
30 San Juan, La Puntilla, San Juan Bay, Puerto Rico San Juan 27.9°C
31 Naguabo, Puerto Rico Naguabo 27.9°C
32 Roosevelt Roads, Puerto Rico Ceiba 27.9°C
33 Aguadilla 28.0°C
34 Isabela 28.0°C
35 La Playa 28.0°C
36 Rincon 28.0°C
37 Aguadilla, Crashboat Beach, Puerto Rico Aguadilla 28.0°C
38 Emajagua 28.0°C
39 Palmas 28.0°C
40 Punta Santiago 28.0°C
41 Puerto Maunabo, Puerto Rico Maunabo 28.0°C
42 Punta Tuna Maunabo 28.0°C
43 Yabucoa Harbor, Puerto Rico Yabucoa 28.0°C
44 Arroyo, Puerto Rico Arroyo 28.0°C
45 Jobos Guayama 28.0°C
46 Lamboglia 28.0°C
47 Las Mareas, Puerto Rico Guayama 28.0°C
48 Palmas Arroyo 28.0°C
49 Arroyo 28.0°C
50 Central Aguirre 28.0°C

Warmest 10 in Puerto Rico in December

Same data the other way. The warmest spots for the same month.

# Location December mean
1 Mayagüez, Puerto Rico Mayagüez 28.2°C
2 Puerto Real, Puerto Rico (sub) Cabo Rojo 28.2°C
3 Punta Guanajibo, Mayagüez, Puerto Rico Cabo Rojo 28.2°C
4 Bahía Salinas, Puerto Rico Cabo Rojo 28.2°C
5 Magueyes Island, Caribbean Sea, Puerto Rico Lajas 28.2°C
6 La Parguera 28.2°C
7 Boqueron 28.1°C
8 Cabo Rojo 28.1°C
9 Mayaguez 28.1°C
10 Puerto Real 28.1°C

More on this region