Skip to content
seatemperatures.net

Warmest sea in North America in March

5,500 coastal locations in North America ranked by their typical March sea temperature. Region-wide average in March: 10.3°C. The top of the list is where to find the warmest swimming this month.

Warmest in March

Puerto Chiapas

29.1°C March mean in Mexico

Regional March average

10.3°C

across all 5,500 coastal locations in North America

Vs annual mean

-4.8°C

below the year-round regional average

What the North America sea feels like in March

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

North America monthly average 9.3°C to 21.6°C
J
F
M
A
M
J
J
A
S
O
N
D
  • 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 March fits in the year

March 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 March 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 March

Sorted by the typical March 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 March mean
1 Puerto Chiapas Chiapas 29.1°C
2 Puerto Arista Chiapas 28.8°C
3 Brisas de Zicatela Oaxaca 28.6°C
4 Puerto Escondido Oaxaca 28.6°C
5 Mazunte Oaxaca 28.5°C
6 San Agustinillo Oaxaca 28.5°C
7 Zipolite beach Oaxaca 28.5°C
8 Pochutla Oaxaca 28.3°C
9 Puerto Angel Oaxaca 28.3°C
10 Maldonado Guerrero 28.2°C
11 Huatulco Oaxaca 28.1°C
12 Santa Maria Huatulco Oaxaca 28.1°C
13 La Crucecita Oaxaca 28.0°C
14 Tangolunda Oaxaca 28.0°C
15 Palmyra Island Northern Line Islands 28.0°C
16 Acapulco Guerrero 27.9°C
17 Tecoanapa Guerrero 27.8°C
18 Acapulco-C,Gro. Guerrero 27.7°C
19 Howland Island Minor Outlying Islands 27.6°C
20 Ixtapa Guerrero 27.6°C
21 Zihuatanejo Guerrero 27.6°C
22 Lazaro Cardenas Michoacan 27.4°C
23 Troncones Guerrero 27.4°C
24 Zihuatenajo,Gro. Guerrero 27.4°C
25 Bacalar Quintana Roo 27.4°C
Show 25 more ▸
26 Calderitas Quintana Roo 27.4°C
27 Chetumal Quintana Roo 27.4°C
28 Quentin Quintana Roo 27.4°C
29 Xcalak Quintana Roo 27.3°C
30 Costa Maya Quintana Roo 27.1°C
31 Mahahual Quintana Roo 27.1°C
32 Puerto Lazaro Cardenas Michoacán 27.1°C
33 Isla Cozumel Quintana Roo 27.1°C
34 La Libertad Chiapas 27.1°C
35 Tulum Quintana Roo 27.1°C
36 Akumal Quintana Roo 27.1°C
37 Xpu Ha Quintana Roo 27.1°C
38 Mayakoba at Playa del Carmen Quintana Roo 27.0°C
39 Paamul Quintana Roo 27.0°C
40 Playa del Carmen Quintana Roo 27.0°C
41 Playacar Quintana Roo 27.0°C
42 Puerto Aventuras Quintana Roo 27.0°C
43 Puerto Moreles,QR Quintana Roo 27.0°C
44 Riviera Maya Quintana Roo 27.0°C
45 Cozumel Quintana Roo 27.0°C
46 Puerto Morelos Quintana Roo 27.0°C
47 Cancun Quintana Roo 27.0°C
48 Punta Maroma Quintana Roo 27.0°C
49 Caleta de Campos Michoacan 26.9°C
50 Puerto de Mujeres Quintana Roo 26.9°C

Coldest 10 in North America in March

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

# Location March mean
1 Cameron Island Nunavut -1.8°C
2 Dundas Harbour Nunavut -1.7°C
3 Frobisher's Farthest Nunavut -1.7°C
4 Grise Fiord Nunavut -1.7°C
5 Iqaluit Nunavut -1.7°C
6 Resor Island Nunavut -1.7°C
7 Iqaluit (Frobisher Bay) Nunavut -1.7°C
8 Lewis Bay Nunavut -1.7°C
9 Milne Inlet Nunavut -1.7°C
10 Pisiktarfik Island Nunavut -1.7°C

More on this region