Puerto Rico: where to swim in October?
Puerto Rico, in October: the sea is at 29.3 °C on average along the coast, from 29.1 °C to 29.4 °C depending on the spot. Where the water is warmest (29.4 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
Sea temperature, month by month
| Month | Average temperature | Depending on the spot | Where it is warmest |
|---|---|---|---|
| January | 27.0 °C | 26.7 °C – 27.2 °C | very warm |
| February | 26.7 °C | 26.4 °C – 26.8 °C | warm |
| March | 26.6 °C | 26.3 °C – 26.8 °C | warm |
| April | 27.0 °C | 26.7 °C – 27.3 °C | very warm |
| May | 27.6 °C | 27.3 °C – 27.8 °C | very warm |
| June | 28.2 °C | 28.0 °C – 28.4 °C | very warm |
| July | 28.5 °C | 28.4 °C – 28.6 °C | very warm |
| August | 29.0 °C | 28.9 °C – 29.1 °C | very warm |
| September | 29.4 °C | 29.1 °C – 29.6 °C | very warm |
| October | 29.3 °C | 29.1 °C – 29.4 °C | very warm |
| November | 28.7 °C | 28.5 °C – 28.8 °C | very warm |
| December | 27.8 °C | 27.6 °C – 28.0 °C | very warm |
Compared with September, the water hardly changes in October. The warmest month: September (29.4 °C). The coldest: March (26.6 °C).
Nearby, in October
- United States Virgin Islands 29.2 °C · very warm
- Mexico 27.8 °C · very warm
- United States 21.2 °C · very warm
- Brazil 24.8 °C · very warm
- Canada 2.1 °C · very cold
- Portugal 19.6 °C · pleasant
- Ireland 13.7 °C · cold
- United Kingdom 12.9 °C · cool
- France 18.0 °C · pleasant
- Netherlands 15.2 °C · cool
And right now?
At sea, 29.9 °C on average across 7 stations, from 28.8 °C (Mayaguez, PR) to 31.3 °C (Culebra, PR). In fresh water, 28.8 °C on average across 4 stations, from 28.0 °C (Canal De Patillas At Forebay, PR) to 29.8 °C (Unnamed Creek At Fort Buchanan, Guaynabo, PR). Puerto Rico: water temperature
Frequently asked questions
What is the sea temperature in October?
Puerto Rico, in October: 29.3 °C on average along the coast, from 29.1 °C in the coolest waters to 29.4 °C in the warmest (average of the years 2011 to 2025).
Can you swim in October?
Where the water is warmest (29.4 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
What is the best month for swimming?
The water is warmest in September (29.4 °C on average) and coldest in March (26.6 °C). Where the water is warmest, it goes above 20 °C in these months: January, February, March, April, May, June, July, August, September, October, November, December.
Where is the water warmest in October?
The warmest in October: United States Virgin Islands (29.2 °C), Mexico (27.8 °C), United States (21.2 °C). The coolest: Netherlands (15.2 °C).
Where do these temperatures come from?
These are averages of the sea surface temperature from 2011 to 2025, computed from NOAA satellite images (OISST, one value about every 50 km), in a 100 km strip along the coasts of the main country: distant territories (overseas, remote islands) are not counted. It is an estimate, not a measurement taken at the beach: lakes and rivers are not included.