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Warmest sea in Central America and the Caribbean in September

711 coastal locations in Central America and the Caribbean ranked by their typical September sea temperature. Region-wide average in September: 29.6°C. The top of the list is where to find the warmest swimming this month.

Warmest in September

Campechuela

30.9°C September mean in Cuba

Regional September average

29.6°C

across all 711 coastal locations in Central America and the Caribbean

Vs annual mean

+1.5°C

above the year-round regional average

What the Central America and the Caribbean 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.

Central America and the Caribbean monthly average 26.6°C to 29.6°C
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  • Warmest month September 29.6°C
  • Coldest month February 26.6°C
  • Annual mean 28.1°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 Central America and the Caribbean month rankings:

Central America and the Caribbean sea temperature map (live)

The map shows today's latest reading at every Central America and the Caribbean location. The list below is based on the typical September 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 Central America and the Caribbean locations in September

Sorted by the typical September 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 September mean
1 Campechuela 30.9°C
2 Manzanillo 30.9°C
3 Niquero 30.8°C
4 Delmas 73 Ouest Department 30.8°C
5 Santa Cruz del Sur 30.7°C
6 Léogâne Ouest Department 30.7°C
7 Jucaro 30.6°C
8 Carrefour 30.6°C
9 Delmas 30.6°C
10 Port-au-Prince 30.6°C
11 Jardines de la Reina 30.6°C
12 Grand Goave 30.6°C
13 Petit-Goave 30.6°C
14 Amapala 30.6°C
15 Gressier 30.6°C
16 Saint-Marc 30.6°C
17 Punta Gorda 30.6°C
18 Gonaives 30.6°C
19 Miragoane 30.6°C
20 Petite Riviere De Nippes 30.6°C
21 Anse a Galets 30.5°C
22 Aquin 30.5°C
23 Hunting Cay Toledo District 30.5°C
24 Cayo Largo 30.5°C
25 Playa Paraiso 30.5°C
Show 25 more ▸
26 Livingston 30.5°C
27 Puerto Barrios 30.5°C
28 Anse Rouge 30.5°C
29 Baie De Henne 30.5°C
30 La Union 30.5°C
31 Anse-a-Veau 30.5°C
32 La Union-B La Unión 30.4°C
33 El Porvenir Departamento de Cortés 30.4°C
34 Puerto Cortes-B Departamento de Cortés 30.4°C
35 Puerto Cortez Cortés Department 30.4°C
36 Playa Larga 30.4°C
37 Champerico 30.4°C
38 Corozal Departamento de Atlántida 30.4°C
39 Harvest Caye 30.4°C
40 Cochino Pequeno Bay Islands 30.4°C
41 San Pedro Sula 30.4°C
42 Pinar del Rio 30.4°C
43 Cayman Brac, West End Sister Islands 30.3°C
44 El Porvenir 30.3°C
45 Placencia 30.3°C
46 Corozal Town 30.3°C
47 Cienfuegos 30.3°C
48 Trinidad 30.3°C
49 Negril 30.3°C
50 Cayman Brac 30.3°C

Coldest 10 in Central America and the Caribbean in September

Same data the other way. Helpful if you want to know which Central America and the Caribbean coasts to avoid for swimming in September.

# Location September mean
1 Salisbury 17.8°C
2 Cocos Island 27.6°C
3 Great Sound Sandys Parish 27.6°C
4 Bermuda Esso Pier St. George's Parish 27.6°C
5 Saint David's Island St. George's Parish 27.6°C
6 St. George's Island St. George's Parish 27.6°C
7 Elbow Beach 27.8°C
8 Hamilton 27.8°C
9 Hog Bay 27.8°C
10 Horseshoe Bay 27.8°C

More on this region