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Coldest sea in Mexico in October

192 coastal locations in Mexico ranked by typical October sea temperature, coldest first. Region-wide average in October: 28.3°C.

Coldest in October

San Quintin

19.1°C October mean in Mexico

Regional October average

28.3°C

across all 192 coastal locations in Mexico

Vs annual mean

+2.2°C

above the year-round regional average

What the Mexico sea feels like in October

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 October fits in the year

October 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 October 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 October

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

# Location October mean
1 San Quintin Baja California 19.1°C
2 Ensenada Baja California 19.2°C
3 Gonzaga Bay Baja California 19.2°C
4 Playa Hermosa 19.2°C
5 Rosarito Baja California 19.4°C
6 Tijuana Baja California 19.5°C
7 Primo Tapia Baja California 19.5°C
8 Puerto Nuevo Baja California 19.5°C
9 Coronado Islands Baja California 19.9°C
10 Guadalupe Island Baja California 20.6°C
11 Cedros Island Baja California 20.9°C
12 Guadalupe Baja California 20.9°C
13 Guadalupe Island Baja California 21.0°C
14 Bahia Tortugas Baja California Sur 21.4°C
15 Guerrero Negro Baja California Sur 21.6°C
16 Bahia Asuncion Baja California Sur 22.8°C
17 Estero de La Bocana Baja California Sur 23.3°C
18 Punta Abreojos Baja California Sur 23.5°C
19 San Juanico Baja California Sur 24.4°C
20 Bahia San Juanico Baja California Sur 24.4°C
21 Scorpion Bay Baja California Sur 24.6°C
22 Puerto San Carlos Baja California Sur 24.8°C
23 San Carlos Baja California Sur 24.9°C
24 Bahia Magdalena Baja California Sur 25.7°C
25 Magdalena Bay Baja California Sur 25.8°C
Show 25 more ▸
26 Bahia de los Angeles Baja California 27.2°C
27 Clarion Island Revillagigedo Islands 27.2°C
28 Bahia Los Angeles Baja California 27.3°C
29 San Felipe Baja California 27.5°C
30 Puerto Libertad Sonora 27.5°C
31 Tiburon Island Sonora 27.6°C
32 Roca Partida Revillagigedo Islands 27.6°C
33 Puerto Lobos Sonora 27.7°C
34 Caborca Sonora 27.7°C
35 Bahia Kino Sonora 27.7°C
36 Puerto Penasco Sonora 27.7°C
37 Puertecitos Baja California 27.8°C
38 Santa Rosalia Baja California Sur 27.8°C
39 San Benedicto Revillagigedo Islands 27.9°C
40 Playa Bagdad Tamaulipas 27.9°C
41 Socorro Island Revillagigedo Islands 27.9°C
42 Matamoros Tamaulipas 28.0°C
43 Hermosillo Sonora 28.0°C
44 Isla Socorro Colima 28.0°C
45 Cerritos Beach Baja California Sur 28.2°C
46 El Pescadero Baja California Sur 28.2°C
47 Punta Lobos Baja California Sur 28.2°C
48 Todos Santos Baja California Sur 28.2°C
49 El Cuyo Yucatan 28.3°C
50 Holbox Quintana Roo 28.3°C

Warmest 10 in Mexico in October

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

# Location October mean
1 Los Ayala Nayarit 30.5°C
2 Rincon de Guayabitos Nayarit 30.5°C
3 San Blas Nayarit 30.5°C
4 Teacapan Sinaloa 30.4°C
5 Bucerias Nayarit 30.4°C
6 Lo de Marcos Nayarit 30.4°C
7 Riviera Nayarit Nayarit 30.4°C
8 San Pancho Nayarit 30.4°C
9 Sayulita Nayarit 30.4°C
10 Bahia de Banderas Nayarit 30.3°C

More on this region