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Takamatsu

Water Temperature in the Seto Inland Sea in Takamatsu, Japan: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Takamatsu in Japan, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Takamatsu

10.5°C

TODAY

10.3°C

YESTERDAY

10.6°C

A WEEK AGO

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Seto Inland Sea in Takamatsu is 10.5°C. The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart for Seto Inland Sea in Takamatsu Over the Last 30 Days

The water temperature in Takamatsu today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Takamatsu will rise slightly in the coming days and reach 11.8°C.

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across Japan to enhance accuracy.

Water temperature data for Takamatsu and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
Feb 16	10.6°C	12.0°C
Feb 17	11.0°C	12.8°C
Feb 18	11.2°C	12.3°C
Feb 19	11.2°C	12.0°C
Feb 20	10.9°C	12.3°C
Feb 21	10.8°C	12.8°C
Feb 22	10.3°C	12.3°C
Feb 23	10.9°C	13.0°C
Feb 24		13.0°C	10.8°C
Feb 25		13.3°C	11.1°C
Feb 26		13.0°C	11.3°C
Feb 27		12.8°C	11.5°C
Feb 28		12.5°C	11.6°C
Mar 1		12.8°C	11.7°C
Mar 2		11.8°C	11.7°C
Mar 3		12.5°C	11.8°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Sea Temperature in Takamatsu Throughout the Year

Throughout the year, the sea temperature in Takamatsu exceeds 77°F (25°C) for 73 days, exceeds 72°F (22°C) for 131 days, and exceeds 64°F (18°C) for 190 days.

Below is the annual chart of sea temperature changes in the Seto Inland Sea in Takamatsu.

January

Minimum	Average	Maximum
11°C	14°C	17°C

February

Minimum	Average	Maximum
9°C	12°C	15°C

March

Minimum	Average	Maximum
10°C	12.5°C	15°C

April

Minimum	Average	Maximum
11°C	14°C	17°C

May

Minimum	Average	Maximum
13°C	18°C	23°C

June

Minimum	Average	Maximum
17°C	21°C	25°C

July

Minimum	Average	Maximum
21°C	24.5°C	28°C

August

Minimum	Average	Maximum
24°C	27.5°C	31°C

September

Minimum	Average	Maximum
24°C	27.5°C	31°C

October

Minimum	Average	Maximum
21°C	24.5°C	28°C

November

Minimum	Average	Maximum
16°C	20°C	24°C

December

Minimum	Average	Maximum
13°C	16.5°C	20°C

Monthly Water Temperature Histogram for Seto Inland Sea in Takamatsu

You can explore detailed data on how the water temperature in Takamatsu varies each month:

Takamatsu Weather

FEBRUARY 24

2°C / 9°C

clear sky

humidity: 56% | wind: 4 km/h

FEBRUARY 25

6°C / 11°C

overcast clouds: 85-100%

humidity: 60% | wind: 6 km/h

FEBRUARY 26

6°C / 12°C

broken clouds: 51-84%

humidity: 58% | wind: 3 km/h

FEBRUARY 27

7°C / 7°C

broken clouds: 51-84%

humidity: 63% | wind: 2 km/h

Sea Temperature in the Seto Inland Sea in Takamatsu: General Trends and Swimming Opportunities

Original name

高松市

The Local Time

08:28

Time Zone

UTC+9

Sunrise

06:40

Sunset

17:54

Length of the day

11 h 13 m

The Kagawa Prefecture in Japan, being a coastal region, experiences a mild Mediterranean climate characterized by warm summers and cool winters. The annual precipitation is relatively low, with a rainy season in the early summer and the occasional typhoon in the late summer to early autumn.

Takamatsu is located in Asia in the Northern Hemisphere at a latitude of 34 degrees, along the shores of the Seto Inland Sea. Takamatsu lies within the Kagawa Prefecture in Japan.

The average annual daytime air temperature in Takamatsu is 20°C (68°F), with the average nighttime temperature being 12°C (54°F). The highest average daily temperature occurs in August, reaching 32°C (90°F), while the lowest is in January at 9°C (48°F). As for nighttime temperatures, the minimum average temperature of 2°C (36°F) is recorded in January, and the maximum is in August, reaching 25°C (76°F).

According to historical data, Takamatsu experiences 137 rainy days per year, which accounts for 38 percent of all days in the year. On average, there are 11 rainy days each month. The wettest month is July, with 14 rainy days and 173 mm (6.8 inches) of precipitation, while the driest month is November, which typically has 9 rainy days and only 67 mm (2.6 inches) of precipitation.

The average annual water temperature in Seto Inland Sea in Takamatsu is 19°C (66°F). In February, the water reaches its lowest point of the year at 9°C (48°F), while in August, it peaks at 31°C (88°F). The months suitable for comfortable beach vacations and swimming in the Seto Inland Sea are July, August, September, and October. During this period, the water temperature stays above 20°C (68°F) and can reach up to 31°C (88°F) on some days.

Geographical Location of Takamatsu

Nearby Cities

Frequently Asked Questions About Takamatsu and its Water Temperatures

What is the current sea temperature in Takamatsu?

The water temperature today in the Seto Inland Sea in Takamatsu is 51°F (10.5°C).

In which months is the water temperature in Takamatsu comfortable for swimming?

The water temperature in the Seto Inland Sea in Takamatsu is comfortable for swimming and beach vacations in July, August, September, and October.

What is the water temperature in Takamatsu during the winter?

The water temperature in the Seto Inland Sea in Takamatsu during the winter ranges from 9°C to 20°C (48°F to 68°F).

What is the water temperature in Takamatsu during the spring?

The water temperature in the Seto Inland Sea in Takamatsu during the spring ranges from 10°C to 23°C (50°F to 73°F).

What is the water temperature in Takamatsu during the summer?

The water temperature in the Seto Inland Sea in Takamatsu during the summer ranges from 17°C to 31°C (63°F to 88°F).

What is the water temperature in Takamatsu during the fall?

The water temperature in the Seto Inland Sea in Takamatsu during the fall ranges from 16°C to 31°C (61°F to 88°F).

Is it possible to swim in the sea in Takamatsu year-round?

No, it is not possible to swim in the Seto Inland Sea in Takamatsu year-round, the months suitable for comfortable swimming are July, August, September, and October.

What sea temperatures can I expect in Takamatsu in the next month?

In March, the water temperature in the Seto Inland Sea in Takamatsu will range between 50°F (10°C) and 59°F (15°C)