
Summary
- The water temperature in Puerto Vallarta is generally warm and comfortable for swimming year-round, with the highest temperatures occurring in the summer months.
- The average water temperature in Puerto Vallarta is 26.8°C (80.2°F), which is ideal for swimming and water activities.
- The warmest months are July, August, and September, when the water temperature can reach up to 31°C (88°F).
- The coldest months are January, February, and March, when the water temperature can drop to 22°C (72°F).
Introduction
A trip to Puerto Vallarta wouldn’t be complete without a dip (or even better, many) in the ocean, and there are those for which the whole point of traveling to Vallarta is the ocean, the waves, and maybe the wind.

Then the question is: what water temperatures can you expect on your next trip to the area? Is the seawater warm, hot, or cold? Find out below:
| Average Water Temperatures in the Bay | |
| January to May 65° – 76°F (18 – 24ºC) | June to December 76° – 84°F (24 – 29ºC) |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Min °C | 22 | 21 | 21.5 | 23 | 25 | 26.5 | 28 | 29 | 29 | 27.5 | 25.5 | 22.5 |
| Max °C | 27 | 26.5 | 26 | 26.5 | 29 | 30 | 31.5 | 31.5 | 31.5 | 31.5 | 29.5 | 27.5 |
| Min °F | 72 | 72.5 | 73 | 75 | 79 | 81 | 83.5 | 85.5 | 85 | 83.5 | 79.5 | 75 |
| Max °F | 78.5 | 77.5 | 77 | 78.5 | 83.5 | 85 | 87 | 87.5 | 87.5 | 87 | 83.5 | 80 |
Average Water Temperatures (Banderas Bay) Celsius

Average Water Temperatures (Banderas Bay) Fahrenheit

* Temperatures are from around the mouth of the Cuale River.
** Expect temperatures at the Marietas Islands to be about 5°F cooler than sites closer to shore like Los Arcos (The Arches).
For more details regarding air temperatures, humidity and precipitation, check our PV Weather section, click here.
Reference sites:
FAQ
Frequently asked questions
Yes. The water is warm enough to swim year round. It is coolest from January to March, when it ranges from about 21 to 27 °C (70s °F), and warmest from July to October, when it can reach about 31 °C (high 80s °F). Expect the water around the Marietas Islands to be a little cooler than near the shore.

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