Water temperature in Nemuro

This data the coastal Nemuro sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Nemuro

Water temperature in Nemuro today is 18.4°C. Based on our historical data over a period of ten years, the warmest water in this day in Nemuro was recorded in 2022 and was 18.7°C, and the coldest was recorded in 2007 at 14.8°C. Sea water temperature in Nemuro is expected to drop to 15.3°C in the next 10 days. September average water temperature in Nemuro is 17.1°C, the minimum temperature is 13.9°C, and the maximum is 21.6°C.

Throughout the year, the water temperature in Nemuro does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of August, September, the water temperature warms up to 20°C and above. The average water temperature in Nemuro in winter reaches 1.9°C, in spring 2.7°C, in summer the average temperature rises to 13.3°C, and in autumn it is 13.7°C.

Nemuro water temperature now

Surf Forecast in Nemuro for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Nemuro. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Nemuro. Data in table shown for 27 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Nemuro

Nemuro weather forecast

Current temperature and weather

Data in a table show Nemuro temperature today (27 September 2025). For more information and forecast for a few days, go to the weather forecast Nemuro.

0-3 h	3-6 h	6-9 h	9-12 h
14.8°C	14.8°C	14.4°C	16.8°C

12-15 h	15-18 h	18-21 h	21-24 h
19°C	18.2°C	15.8°C	14.9°C

Nemuro water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Nemuro. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Nemuro on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Nemuro

The nearest beaches and cities from Nemuro with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Ishikari	21.6°C	21°C		0.58 m
Sapporo	21.9°C	20°C		0.78 m
Otaru	21.7°C	20°C		0.58 m
Wakkanai	20.6°C	19°C		1.07 m
Hokkaido	21.3°C	21°C		0.78 m
Kamiiso	22.4°C	21°C		1.24 m
Hakodate	23.7°C	21°C		1.03 m
Hachinohe	21.7°C	23°C		1.46 m
Aomori Shi	24.5°C	21°C		0.19 m
Miyako	21.5°C	21°C		1.59 m

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Our report for Nemuro is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.