Treasure Coast
Jensen Beach Water Temperature
Hutchinson Island beaches and the Indian River flats.
Sea-surface temperature
WarmWarming · last two weeks
That is about 3°F warmer than average for this time of year, and warming over the last two weeks. The November average here is 78°F.
Updated Saturday, November 7 — sea-surface temperature modeled for Jensen Beach by Open-Meteo.
For swimming
Warm
About as good as it gets — warm enough to stay in for hours without getting chilled.
For fishing
Peak season
Snook, redfish and tarpon are all active and feeding. The tarpon migration through the passes runs at the upper end of this range.
The last two weeks
| Date | Average |
|---|---|
| Oct 25 | 78.1°F |
| Oct 26 | 77.7°F |
| Oct 27 | 77.2°F |
| Oct 28 | 76.8°F |
| Oct 29 | 77.4°F |
| Oct 30 | 77.7°F |
| Oct 31 | 78.1°F |
| Nov 1 | 78.3°F |
| Nov 2 | 78.6°F |
| Nov 3 | 79°F |
| Nov 4 | 79.3°F |
| Nov 5 | 80.1°F |
| Nov 6 | 80.8°F |
| Nov 7 | 81.1°F |
Jensen Beach water temperature by month
Averaged from 3 years of daily sea-surface temperature (2023–2025). The range column is the coolest and warmest daily average recorded in that month over the period — a guide to how much any given year can differ, not a record high and low.
| Month | Range | Average |
|---|---|---|
JanJanuary Cool but comfortable | 63–76°F | 71°F |
FebFebruary Cool but comfortable | 66–77°F | 73°F |
MarMarch Warm | 72–78°F | 75°F |
AprApril Warm | 74–79°F | 77°F |
MayMay Warm | 78–85°F | 81°F |
JunJune Very warm | 80–86°F | 83°F |
JulJuly Very warm | 83–88°F | 86°F |
AugAugust Very warm | 84–88°F | 86°F |
SepSeptember Very warm | 83–88°F | 86°F |
OctOctober Warm | 77–86°F | 81°F |
NovNovembernow Warm | 73–81°F | 78°F |
DecDecember Cool but comfortable | 67–78°F | 74°F |
Warmest
86°FJuly
Coolest
71°FJanuary
Warmest on average in July at 86°F; coolest in January at 71°F.
The water at Jensen Beach
Jensen Beach spans the Indian River Lagoon onto Hutchinson Island, giving you protected grass flats and causeway structure on one side and open Atlantic beach on the other. Trout, redfish, and snook work the lagoon's grass and dock lines, the causeway bridges hold sheepshead and drum in winter, and the beach is a dependable pompano and whiting surf. Sea turtles nest along this island in extraordinary numbers.
Hutchinson Island & the lagoon
What moves the water temperature here
The Gulf shelf off this coast is shallow, which is why the water swings so much more between summer and winter than open ocean at the same latitude does. Shallow water heats fast and gives that heat up fast: a single strong winter cold front can pull the inshore bays several degrees down in a couple of days, while the beaches a mile offshore barely move. Wind direction matters too — a sustained offshore breeze can pull cooler water up from below and drop the beach temperature noticeably in a morning.
Inshore bays, canals and flats run warmer than the beach through the summer and colder through the winter, for the same reason. The reading above is for the open water at Jensen Beach; expect the back bays to be a few degrees either side of it depending on the season.
Common questions
- What is the water temperature at Jensen Beach right now?
- The water at Jensen Beach is currently about 81°F (27°C). The November average here is 78°F.
- Is the water warm enough to swim at Jensen Beach in November?
- November averages 78°F at Jensen Beach, which most people would call warm. About as good as it gets — warm enough to stay in for hours without getting chilled.
- When is the water warmest at Jensen Beach?
- July is the warmest month on average at 86°F, and January the coolest at 71°F. 9 months of the year average 75°F or above.
- Why does the water temperature change so quickly here?
- The Gulf shelf off this coast is shallow, so it heats and cools far faster than deep open ocean. A strong winter cold front can pull the inshore water down several degrees in a couple of days, and a sustained offshore wind can drop beach temperatures in a single morning by pulling cooler water up from below.