Puerto Rico: where to swim in January?
Puerto Rico, in January: the sea is at 27.0 °C on average along the coast, from 26.7 °C to 27.2 °C depending on the spot. Where the water is warmest (27.2 °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 December, the water cools down by 0.8 °C in January. The warmest month: September (29.4 °C). The coldest: March (26.6 °C).
Nearby, in January
- United States Virgin Islands 26.9 °C · very warm
- Mexico 22.6 °C · very warm
- United States 14.4 °C · pleasant
- Brazil 27.1 °C · very warm
- Canada -0.8 °C · very cold
- Portugal 15.6 °C · cool
- Ireland 9.9 °C · cold
- United Kingdom 8.8 °C · cold
- France 12.3 °C · cold
- Netherlands 7.4 °C · very cold
And right now?
For the temperature measured right now, station by station and to the hour: Puerto Rico: water temperature
Frequently asked questions
What is the sea temperature in January?
Puerto Rico, in January: 27.0 °C on average along the coast, from 26.7 °C in the coolest waters to 27.2 °C in the warmest (average of the years 2011 to 2025).
Can you swim in January?
Where the water is warmest (27.2 °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 January?
The warmest in January: United States Virgin Islands (26.9 °C), Mexico (22.6 °C), United States (14.4 °C). The coolest: Netherlands (7.4 °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.