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Warmest sea in Mexico in December

192 coastal locations in Mexico ranked by their typical December sea temperature. Region-wide average in December: 25.0°C. The top of the list is where to find the warmest swimming this month.

Warmest in December

Acapulco

29.4°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, 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 Mexico locations in December

Sorted by the typical December 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 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
11 Puerto Arista Chiapas 29.0°C
12 Caleta de Campos Michoacan 29.0°C
13 Brisas de Zicatela Oaxaca 29.0°C
14 Puerto Escondido Oaxaca 29.0°C
15 Maruata Michoacan 28.9°C
16 Puerto Lazaro Cardenas Michoacán 28.9°C
17 Mascota Colima 28.7°C
18 Tecoman Colima 28.7°C
19 La Ticla Michoacan 28.7°C
20 Manzanillo Colima 28.5°C
21 Mazunte Oaxaca 28.5°C
22 San Agustinillo Oaxaca 28.5°C
23 Zipolite beach Oaxaca 28.5°C
24 Barra de Navidad Jalisco 28.5°C
25 San Patricio - Melaque Jalisco 28.5°C
Show 25 more ▸
26 San Patricio Jalisco 28.5°C
27 Chapala Jalisco 28.4°C
28 Guadalajara Jalisco 28.4°C
29 Villa Obregon Jalisco 28.4°C
30 Manzanillo-B Colima 28.4°C
31 Boca De Iguanas Jalisco 28.3°C
32 La Manzanilla Jalisco 28.3°C
33 Tenacatita Jalisco 28.3°C
34 Huatulco Oaxaca 28.2°C
35 Santa Maria Huatulco Oaxaca 28.2°C
36 Pochutla Oaxaca 28.2°C
37 Puerto Angel Oaxaca 28.2°C
38 Isla Cozumel Quintana Roo 28.0°C
39 Mayakoba at Playa del Carmen Quintana Roo 27.9°C
40 Paamul Quintana Roo 27.9°C
41 Playa del Carmen Quintana Roo 27.9°C
42 Playacar Quintana Roo 27.9°C
43 Puerto Aventuras Quintana Roo 27.9°C
44 Riviera Maya Quintana Roo 27.9°C
45 Cozumel Quintana Roo 27.9°C
46 Puerto Morelos Quintana Roo 27.9°C
47 Puerto Moreles,QR Quintana Roo 27.9°C
48 Costa Maya Quintana Roo 27.9°C
49 Mahahual Quintana Roo 27.9°C
50 Puerto de Mujeres Quintana Roo 27.9°C

Coldest 10 in Mexico in December

Same data the other way. Helpful if you want to know which Mexico coasts to avoid for swimming in December.

# 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

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