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Warmest sea in North America in October

5,500 coastal locations in North America ranked by their typical October sea temperature. Region-wide average in October: 17.8°C. The top of the list is where to find the warmest swimming this month.

Warmest in October

Los Ayala

30.5°C October mean in Mexico

Regional October average

17.8°C

across all 5,500 coastal locations in North America

Vs annual mean

+2.6°C

above the year-round regional average

What the North America sea feels like in October

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

North America monthly average 9.3°C to 21.6°C
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  • Warmest month August 21.6°C
  • Coldest month February 9.3°C
  • Annual mean 15.2°C
  • Months above 20°C 3 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 North America month rankings:

North America sea temperature map (live)

The map shows today's latest reading at every North America location. The list below is based on the typical October 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 North America locations in October

Sorted by the typical October 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 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
11 Nuevo Vallarta Nayarit 30.3°C
12 Punta Mita Nayarit 30.3°C
13 Puerto Vallarta Jalisco 30.2°C
14 Yelapa Jalisco 30.2°C
15 Brisas de Zicatela Oaxaca 30.1°C
16 Puerto Escondido Oaxaca 30.1°C
17 Maldonado Guerrero 30.1°C
18 Mazatlan Sinaloa 30.1°C
19 Tecoanapa Guerrero 30.0°C
20 Puerto Chiapas Chiapas 30.0°C
21 Troncones Guerrero 30.0°C
22 Cospita Sinaloa 30.0°C
23 Mazunte Oaxaca 29.9°C
24 San Agustinillo Oaxaca 29.9°C
25 Zipolite beach Oaxaca 29.9°C
Show 25 more ▸
26 Ixtapa Guerrero 29.9°C
27 Lazaro Cardenas Michoacan 29.9°C
28 Zihuatanejo Guerrero 29.9°C
29 Acapulco Guerrero 29.9°C
30 Huatulco Oaxaca 29.9°C
31 Santa Maria Huatulco Oaxaca 29.9°C
32 Zihuatenajo,Gro. Guerrero 29.9°C
33 Puerto Arista Chiapas 29.9°C
34 Altata Sinaloa 29.9°C
35 Pochutla Oaxaca 29.9°C
36 Puerto Angel Oaxaca 29.9°C
37 Puerto Lazaro Cardenas Michoacán 29.9°C
38 La Ticla Michoacan 29.8°C
39 Mascota Colima 29.8°C
40 Tecoman Colima 29.8°C
41 Caleta de Campos Michoacan 29.8°C
42 La Crucecita Oaxaca 29.8°C
43 Tangolunda Oaxaca 29.8°C
44 Maruata Michoacan 29.8°C
45 Chapala Jalisco 29.8°C
46 Guadalajara Jalisco 29.8°C
47 La Reforma Sinaloa 29.8°C
48 Manzanillo Colima 29.8°C
49 Villa Obregon Jalisco 29.8°C
50 Acapulco-C,Gro. Guerrero 29.8°C

Coldest 10 in North America in October

Same data the other way. Helpful if you want to know which North America coasts to avoid for swimming in October.

# Location October mean
1 Wrangel Bay Nunavut -1.6°C
2 Cameron Island Nunavut -1.6°C
3 Cape Sheridan Nunavut -1.6°C
4 Alert Nunavut -1.6°C
5 Discovery Harbour Nunavut -1.6°C
6 Iceberg Point Nunavut -1.5°C
7 Isachsen Nunavut -1.5°C
8 Pim Island Nunavut -1.5°C
9 Greely Fiord Nunavut -1.5°C
10 Airstrip Point Nunavut -1.5°C

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