The most detailed information about the water temperature in Saint John in The Caribbean (United States Virgin Islands). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Saint John for a week.
Water temperature in Saint John right now
data updated 32 minutes ago81°F
yesterday: 81°F
a week ago: 81°F
Trend: slow rise
Today water temperature in Saint John is 81.9°F. It is very warm and comfortable water for long swimming in any body of water. It is believed that these are the ideal conditions under which one can be without the slightest discomfort. But it is worth remembering that at such a water temperature, various disease-causing organisms multiply very quickly. In any case, the general weather is also important. So, the air temperature at the same time will reach 81°F.
Analysis and forecast
The water temperature today roughly corresponds to the average value on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 80°F. Water temperature range in Saint John in April is from 77 to 84 degrees.
According to our forecast, the water temperature in Saint John will slowly rise for at least the next 10 days and reach a value of 82°F.
Table of water temperature values in Saint John
| Day | Fact* | Average** | Forecast*** |
| Apr 18 | 27.4°C | 27.0°C | |
| Apr 19 | 27.5°C | 27.5°C | |
| Apr 20 | 27.6°C | 27.0°C | |
| Apr 21 | 27.7°C | 27.3°C | |
| Apr 22 | 27.7°C | 26.8°C | |
| Apr 23 | 27.4°C | 27.5°C | |
| Apr 24 | 27.7°C | 26.8°C | |
| Apr 25 | 27.7°C | 27.5°C | |
| Apr 26 | 26.8°C | 27.0°C | |
| Apr 27 | 27.0°C | 27.2°C | |
| Apr 28 | 27.0°C | 27.2°C | |
| Apr 29 | 26.8°C | 27.0°C | |
| Apr 30 | 27.3°C | 27.5°C | |
| May 1 | 27.8°C | 28.0°C | |
| May 2 | 27.5°C | 27.7°C |
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature
Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.
To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in United States Virgin Islands.
Annual graph of average water temperature change in Saint John
Water temperature in Saint John by month
Saint John located in the northern hemisphere, south of the northern tropic, at latitude 18 degrees. The swimming season in this location lasts all year round. Average annual water temperature on the coast in Saint John is 82°F, by the seasons: in winter 80°F, in spring 80°F, in summer 84°F, in autumn 84°F. Minimum water temperature (76°F) in Saint John it happens in February, maximum (86°F) in September.
You can find out detailed data on how the water temperature in Saint John changes in each specific month:
Saint John: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Coral Bay | 81°C  | 4km |
| Cruz Bay | 81°C | 6km |
| Jost Van Dyke | 82°C | 13km |
| Tortola | 80°C | 16km |
| Great Tobago | 81°C | 16km |
| Road Town | 81°C | 17km |
| Peter Island | 81°C | 18km |
| Wesley Will | 82°C | 20km |
| Magens Bay | 81°C | 20km |
| Charlotte Amalie | 82°C | 20km |
| Parham Town | 82°C | 22km |
| Saint Thomas | 81°C | 23km |
** Straight line distance in kilometers
The warmest water today in United States Virgin Islands recorded in Frederiksted, its value is 83°F. Lowest - in Coral Bay, there water temperature now 81°F. Average water temperature in the country today - 82°F.
Water temperature data in Saint John and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.
We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.
The nearest airport is located in a 20 kilometers. This is Road Town (RAD) airport. We have no information as to whether it is valid and what flights it receives or sends.
Saint John: weather forecast
The weather forecast is shown in local time in Saint John
25km/hhumidity: 78%, clouds: 20%
22km/hhumidity: 80%, clouds: 56%
24km/hhumidity: 81%, clouds: 24%
27km/hhumidity: 81%, clouds: 59%
30km/hhumidity: 76%, clouds: 46%
27km/hhumidity: 74%, clouds: 35%
27km/hhumidity: 73%, clouds: 37%
25km/hhumidity: 70%, clouds: 63%
26km/hhumidity: 70%, clouds: 57%
25km/hhumidity: 71%, clouds: 76%
23km/hhumidity: 74%, clouds: 99%
24km/hhumidity: 71%, clouds: 99%
23km/hhumidity: 74%, clouds: 100%
21km/hhumidity: 76%, clouds: 100%
24km/hhumidity: 77%, clouds: 90%
24km/hhumidity: 77%, clouds: 95%
22km/hhumidity: 74%, clouds: 99%
23km/hhumidity: 76%, clouds: 96%
26km/hhumidity: 75%, clouds: 100%
26km/hhumidity: 74%, clouds: 99%
21km/hhumidity: 70%, clouds: 100%
19km/hhumidity: 67%, clouds: 100%
21km/hhumidity: 73%, clouds: 100%
25km/hhumidity: 75%, clouds: 100%
28km/hhumidity: 74%, clouds: 100%
28km/hhumidity: 74%, clouds: 100%
29km/hhumidity: 74%, clouds: 79%
28km/hhumidity: 75%, clouds: 49%
28km/hhumidity: 74%, clouds: 53%
26km/hhumidity: 73%, clouds: 53%
27km/hhumidity: 73%, clouds: 41%
28km/hhumidity: 70%, clouds: 61%
28km/hhumidity: 71%, clouds: 23%
25km/hhumidity: 73%, clouds: 10%
26km/hhumidity: 71%, clouds: 47%
24km/hhumidity: 72%, clouds: 58%
27km/hhumidity: 75%, clouds: 19%
27km/hhumidity: 76%, clouds: 14%
