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Coldest sea in Mexico in December

192 coastal locations in Mexico ranked by typical December sea temperature, coldest first. Region-wide average in December: 25.0°C.

Coldest in December

Rosarito

16.1°C December mean in Mexico

Regional December average

25.0°C

across all 192 coastal locations in Mexico

Vs annual mean

-1.1°C

below the year-round regional average

What the Mexico 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.

Mexico monthly average 23.4°C to 28.9°C
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  • Warmest month August 28.9°C
  • Coldest month February 23.4°C
  • Annual mean 26.1°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 Mexico month rankings:

Mexico sea temperature map (live)

The map shows today's latest reading at every Mexico 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 Mexico 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 Rosarito Baja California 16.1°C
2 Tijuana Baja California 16.3°C
3 Coronado Islands Baja California 16.4°C
4 Primo Tapia Baja California 16.7°C
5 Puerto Nuevo Baja California 16.7°C
6 Ensenada Baja California 16.7°C
7 Gonzaga Bay Baja California 16.7°C
8 Playa Hermosa 16.7°C
9 San Quintin Baja California 17.3°C
10 San Felipe Baja California 18.0°C
11 Guadalupe Island Baja California 18.2°C
12 Guadalupe Baja California 18.4°C
13 Guadalupe Island Baja California 18.5°C
14 Guerrero Negro Baja California Sur 18.8°C
15 Cedros Island Baja California 18.8°C
16 Bahia Kino Sonora 18.9°C
17 Tiburon Island Sonora 19.2°C
18 Bahia Tortugas Baja California Sur 19.2°C
19 Puerto Libertad Sonora 19.4°C
20 Hermosillo Sonora 19.4°C
21 Puerto Penasco Sonora 19.4°C
22 Caborca Sonora 19.6°C
23 Puertecitos Baja California 19.7°C
24 Puerto Lobos Sonora 19.7°C
25 Bahia de los Angeles Baja California 19.9°C
Show 25 more ▸
26 Bahia Los Angeles Baja California 20.0°C
27 Santa Rosalia Baja California Sur 20.2°C
28 Bahia Asuncion Baja California Sur 20.5°C
29 Guaymas Sonora 20.6°C
30 Playa Bagdad Tamaulipas 20.6°C
31 San Carlos Sonora 20.7°C
32 Estero de La Bocana Baja California Sur 20.9°C
33 Matamoros Tamaulipas 20.9°C
34 Punta Abreojos Baja California Sur 21.0°C
35 Punta Chivato Baja California Sur 21.0°C
36 Camahuiroa Sonora 21.3°C
37 Mulege Baja California Sur 21.3°C
38 Bahia de Concepcion Baja California Sur 21.4°C
39 Yavaros Sonora 21.6°C
40 San Juanico Baja California Sur 21.7°C
41 Scorpion Bay Baja California Sur 21.7°C
42 Bahia San Juanico Baja California Sur 22.0°C
43 Puerto San Carlos Baja California Sur 22.0°C
44 Loreto Baja California Sur 22.1°C
45 San Carlos Baja California Sur 22.3°C
46 Los Mochis 22.4°C
47 La Reforma Sinaloa 22.6°C
48 Topolobampo Sinaloa 22.7°C
49 Bahia Magdalena Baja California Sur 22.9°C
50 Magdalena Bay Baja California Sur 23.0°C

Warmest 10 in Mexico in December

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

# Location December mean
1 Acapulco Guerrero 29.4°C
2 Puerto Chiapas Chiapas 29.4°C
3 Maldonado Guerrero 29.3°C
4 Tecoanapa Guerrero 29.3°C
5 Ixtapa Guerrero 29.3°C
6 Zihuatanejo Guerrero 29.3°C
7 Acapulco-C,Gro. Guerrero 29.2°C
8 Troncones Guerrero 29.2°C
9 Lazaro Cardenas Michoacan 29.1°C
10 Zihuatenajo,Gro. Guerrero 29.1°C

More on this region