Skip to content
seatemperatures.net

Coldest sea in Mexico in September

192 coastal locations in Mexico ranked by typical September sea temperature, coldest first. Region-wide average in September: 28.9°C.

Coldest in September

San Quintin

20.1°C September mean in Mexico

Regional September average

28.9°C

across all 192 coastal locations in Mexico

Vs annual mean

+2.8°C

above the year-round regional average

What the Mexico sea feels like in September

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
J
F
M
A
M
J
J
A
S
O
N
D
  • 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 September fits in the year

September 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 September 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 September

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

# Location September mean
1 San Quintin Baja California 20.1°C
2 Ensenada Baja California 20.2°C
3 Gonzaga Bay Baja California 20.2°C
4 Playa Hermosa 20.2°C
5 Primo Tapia Baja California 20.5°C
6 Puerto Nuevo Baja California 20.5°C
7 Tijuana Baja California 20.8°C
8 Rosarito Baja California 20.8°C
9 Guadalupe Island Baja California 21.1°C
10 Coronado Islands Baja California 21.2°C
11 Cedros Island Baja California 21.5°C
12 Guadalupe Baja California 21.5°C
13 Guadalupe Island Baja California 21.8°C
14 Bahia Tortugas Baja California Sur 22.0°C
15 Guerrero Negro Baja California Sur 22.3°C
16 Bahia Asuncion Baja California Sur 23.0°C
17 Estero de La Bocana Baja California Sur 23.9°C
18 Punta Abreojos Baja California Sur 24.1°C
19 San Juanico Baja California Sur 25.6°C
20 Bahia San Juanico Baja California Sur 25.7°C
21 Scorpion Bay Baja California Sur 25.7°C
22 Puerto San Carlos Baja California Sur 25.8°C
23 San Carlos Baja California Sur 26.1°C
24 Bahia Magdalena Baja California Sur 26.4°C
25 Magdalena Bay Baja California Sur 26.5°C
Show 25 more ▸
26 Clarion Island Revillagigedo Islands 27.8°C
27 Roca Partida Revillagigedo Islands 28.0°C
28 San Benedicto Revillagigedo Islands 28.3°C
29 Socorro Island Revillagigedo Islands 28.3°C
30 Isla Socorro Colima 28.4°C
31 Cerritos Beach Baja California Sur 28.5°C
32 El Pescadero Baja California Sur 28.5°C
33 Punta Lobos Baja California Sur 28.5°C
34 Todos Santos Baja California Sur 28.5°C
35 Merida Yucatan 28.7°C
36 Cabo San Lucas Baja California Sur 28.8°C
37 Los Cabos Baja California Sur 28.8°C
38 Medano Beach Baja California Sur 28.8°C
39 Progreso-C, Yuc. Yucatán 28.8°C
40 Telchac,Yuk. Yucatán 28.8°C
41 El Cuyo Yucatan 28.9°C
42 Holbox Quintana Roo 28.9°C
43 Sisal Yucatan 28.9°C
44 Bahia de los Angeles Baja California 28.9°C
45 Bahia Los Angeles Baja California 29.0°C
46 Progreso Yucatan 29.0°C
47 Costa Mujeres Quintana Roo 29.0°C
48 Isla Blanca Quintana Roo 29.0°C
49 Isla Contoy Quintana Roo 29.0°C
50 Playa Norte Quintana Roo 29.0°C

Warmest 10 in Mexico in September

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

# Location September mean
1 San Felipe Baja California 30.8°C
2 Teacapan Sinaloa 30.8°C
3 Los Ayala Nayarit 30.7°C
4 Rincon de Guayabitos Nayarit 30.7°C
5 San Blas Nayarit 30.7°C
6 Campeche Campeche 30.6°C
7 Bucerias Nayarit 30.6°C
8 Lo de Marcos Nayarit 30.6°C
9 Riviera Nayarit Nayarit 30.6°C
10 San Pancho Nayarit 30.6°C

More on this region