Joetsu Sea Temperature in January

Looking to find out what the average sea water temperature in Joetsu is for January? Find out what the lowest, highest, and average water temperatures are for Joetsu over the past 10 years.

Average water temperature in Joetsu for January

The average, high, and low temperatures below should help you if you can swim in the water in Joetsu in January.

12.83° C

(55.09° F)

  • highest: 15.02° C (59.04° F)
  • lowest: 10.35° C (50.63° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

Water temperature range by day in January in Joetsu

The chart below shows the range of low and high temperatures by day for the month of January in Joetsu.

Water temperatures for January in Joetsu in recent years

Day 2024 2023 2022 2021
1 14.38° C 14.76° C 13.53° C 14.55° C
2 14.35° C 14.64° C 13.46° C 14.43° C
3 14.3° C 14.77° C 13.38° C 14.31° C
4 14.25° C 14.33° C 13.25° C 14.19° C
5 14.16° C 14.19° C 13.11° C 14.07° C
6 14.09° C 14.39° C 13.18° C 13.95° C
7 13.77° C 14.07° C 13.05° C 13.83° C
8 13.7° C 14.04° C 12.95° C 13.71° C
9 13.77° C 13.95° C 12.87° C 13.59° C
10 13.68° C 13.98° C 12.83° C 13.47° C
11 13.68° C 14° C 12.78° C 13.42° C
12 13.66° C 13.89° C 12.67° C 13.42° C
13 13.71° C 13.5° C 12.63° C 13.38° C
14 13.74° C 13.43° C 12.65° C 13.3° C
15 13.42° C 13.69° C 12.66° C 13.34° C
16 13.26° C 13.62° C 12.69° C 13.33° C
17 13.23° C 13.57° C 12.61° C 13.38° C
18 13.2° C 13.56° C 12.55° C 13.34° C
19 13.14° C 13.47° C 12.58° C 13.2° C
20 13.11° C 13.37° C 12.41° C 13.44° C
21 13.05° C 13.31° C 12.4° C 13.53° C
22 12.97° C 13.25° C 12.27° C 13.54° C
23 12.67° C 12.99° C 12.28° C 13.34° C
24 12.62° C 12.78° C 12.16° C 13.24° C
25 12.46° C 12.67° C 12.05° C 13.24° C
26 12.35° C 12.66° C 11.98° C 13.22° C
27 12.25° C 12.77° C 11.93° C 12.95° C
28 12.22° C 12.75° C 11.83° C 12.86° C
29 12.22° C 12.55° C 11.66° C 12.82° C
30 12.2° C 12.57° C 11.68° C 12.72° C
31 12.23° C 12.63° C 11.55° C 12.61° C

Water temperature in January for locations near Joetsu

Kashiwazaki

Japan, Asia

23.56 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Joetsu 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.

  • "Joetsu Sea Temperature in January". SeaTemperatures.net. Accessed on April 28, 2024. http://seatemperatures.net/asia/japan/joetsu-january-temperature/.

  • "Joetsu Sea Temperature in January". SeaTemperatures.net, http://seatemperatures.net/asia/japan/joetsu-january-temperature/. Accessed 28 April, 2024

  • Joetsu Sea Temperature in January. SeaTemperatures.net. Retrieved from http://seatemperatures.net/asia/japan/joetsu-january-temperature/.