Jamestown Sea Temperature
Looking to find out what the sea water temperature in Jamestown is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Jamestown and nearby locations.
Water temperature in Jamestown right now
Below is the current sea temperature for Jamestown, Saint Helena on 6th July 2022.
- yesterday: 22.48° C (72.46° F)
- a week ago: 22.6° C (72.68° F)
Water at this temperature is very pleasant to swim in and if you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.
The average sea temperature for Jamestown on July 6th over the last 10 years is 22.02° C (71.64° F), with a low temperature of 21.56° C (70.81° F) and a high of 22.76° C (72.97° F).
Analysis and forecast for Jamestown water temperatures
The water temperature in Jamestown today is higher than the average temperature of 22.02° C (71.64° F) and the temperature on this day last year, 6th July 2021, was 22.48° C (72.46° F).
The chart and table below shows the change in water temperature in Jamestown over the last 30 days:
|Date||Temperature (Celsius)||Temperature (Fahrenheit)|
|July 6||22.46° C||72.42° F|
|July 5||22.48° C||72.46° F|
|July 4||22.84° C||73.11° F|
|July 3||22.69° C||72.84° F|
|July 2||22.76° C||72.97° F|
|July 1||22.77° C||72.99° F|
|June 30||22.68° C||72.82° F|
|June 29||22.6° C||72.68° F|
|June 28||22.64° C||72.75° F|
|June 27||22.59° C||72.66° F|
|June 26||22.83° C||73.09° F|
|June 25||23° C||73.4° F|
|June 24||23.06° C||73.51° F|
|June 23||23.21° C||73.78° F|
|June 22||23.25° C||73.85° F|
|June 21||23.23° C||73.81° F|
|June 20||23.05° C||73.49° F|
|June 19||23.12° C||73.62° F|
|June 18||23.16° C||73.69° F|
|June 17||23.17° C||73.71° F|
|June 16||23.07° C||73.53° F|
|June 15||22.95° C||73.31° F|
|June 14||22.87° C||73.17° F|
|June 13||22.92° C||73.26° F|
|June 12||23.02° C||73.44° F|
|June 11||22.91° C||73.24° F|
|June 10||22.86° C||73.15° F|
|June 9||22.84° C||73.11° F|
|June 8||22.91° C||73.24° F|
|June 7||22.98° C||73.36° F|
|June 6||23.01° C||73.42° F|
The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.
Water temperature in Jamestown by month
The chart below shows the monthly average water temperature in Jamestown.
For more detailed information on how the sea temperature in Jamestown changes for each month of the year, choose from the months below.
Jamestown map and nearby water temperatures
Why measure sea surface temperatures (SST) in Jamestown?
The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Jamestown because they want to understand and learn how the ocean communicates with the atomosphere of Earth.
SST is one measure that provides information on the global climate, and it can be used to predict the weather in Jamestown as well as atmospheric model simulations and to study marine ecosystems in the area.
Data source and citation
Raw data for the calculations made to find the sea surface temperature in Jamestown comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.
The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.
If you'd like to use any of the information above in the format it is presented, please use the citation tool below.
"Jamestown Sea Temperature". SeaTemperatures.net. Accessed on July 6, 2022. http://seatemperatures.net/africa/saint-helena/jamestown/.
"Jamestown Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/africa/saint-helena/jamestown/. Accessed 6 July, 2022
Jamestown Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/africa/saint-helena/jamestown/.