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Akashi

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

On this page, you will find comprehensive information about the sea temperature in Akashi 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 Akashi

81°F

TODAY

80°F

YESTERDAY

79°F

A WEEK AGO

All water temperature data is now available in our official mobile apps — for iOS and Android.

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Seto Inland Sea in Akashi is 26.9°F. This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays.

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 Akashi Over the Last 30 Days

The water temperature in Akashi 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 Akashi will remain nearly unchanged in the coming days, its value will be 81°F.

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 Akashi 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

DateCurrentAverageForecast
Jul 3179°F80°F
Aug 180°F81°F
Aug 280°F81°F
Aug 380°F80°F
Aug 479°F81°F
Aug 581°F81°F
Aug 680°F81°F
Aug 782°F81°F
Aug 881°F81°F
Aug 982°F81°F
Aug 1081°F81°F
Aug 1181°F81°F
Aug 1282°F81°F
Aug 1381°F81°F
Aug 1482°F81°F
Aug 1581°F81°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Akashi Throughout the Year

Throughout the year, the sea temperature in Akashi exceeds 77°F (25°C) for 73 days, exceeds 72°F (22°C) for 127 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 Akashi.

January

MinimumAverageMaximum
54°F58°F63°F

February

MinimumAverageMaximum
52°F56°F61°F

March

MinimumAverageMaximum
52°F56°F61°F

April

MinimumAverageMaximum
54°F58°F63°F

May

MinimumAverageMaximum
57°F64°F72°F

June

MinimumAverageMaximum
63°F71°F79°F

July

MinimumAverageMaximum
70°F76°F82°F

August

MinimumAverageMaximum
77°F82°F86°F

September

MinimumAverageMaximum
73°F80°F86°F

October

MinimumAverageMaximum
70°F76°F82°F

November

MinimumAverageMaximum
63°F70°F77°F

December

MinimumAverageMaximum
57°F62°F66°F

Monthly Water Temperature Histogram for Seto Inland Sea in Akashi

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

What Beaches Are There In and Around Akashi?

Okura Beach

Okura Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Akashi.

Okura Coast

Okura Coast is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Akashi.

Fujie Beach

Fujie Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Akashi.

Matsue Beach Resort

Matsue Beach Resort is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Akashi.

Azur Maiko

Azur Maiko is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Akashi.

Eigashima Beach Resort

Eigashima Beach Resort is a 1-stars sandy beach, located in a 8 km (5 miles) radius of Akashi.

Akashi Weather

AUGUST 8

75°F / 86°F
overcast clouds: 85-100%

humidity: 64% | wind: 2 mph

AUGUST 9

75°F / 77°F
moderate rain

humidity: 95% | wind: 3 mph

AUGUST 10

75°F / 81°F
moderate rain

humidity: 90% | wind: 3 mph

AUGUST 11

79°F / 84°F
light rain

humidity: 84% | wind: 4 mph

Hyōgo Prefecture, JapanHyōgo Prefecture, JapanHyōgo Prefecture, Japan

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

Original name
明石市
The Local Time
04:02 PM
Time Zone
UTC+9
Sunrise
05:13 AM
Sunset
06:56 PM
Length of the day
13 h 43 m

The climate in the coastal areas of Hyōgo Prefecture, Japan is characterized by a humid subtropical climate with hot, humid summers and mild winters. The region experiences abundant rainfall, particularly during the monsoon seasons in June and July and the typhoon season in September.

Akashi is located in Asia in the Northern Hemisphere at a latitude of 35 degrees, along the shores of the Seto Inland Sea. Akashi lies within the Hyōgo Prefecture in Japan.

The average annual daytime air temperature in Akashi 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, Akashi 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 Akashi is 20°C (68°F). In February, the water reaches its lowest point of the year at 11°C (52°F), while in August, it peaks at 30°C (86°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 30°C (86°F) on some days.

Geographical Location of Akashi

Frequently Asked Questions About Akashi and its Water Temperatures

What is the current sea temperature in Akashi?

The water temperature today in the Seto Inland Sea in Akashi is 81°F (27°C).

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

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

What is the water temperature in Akashi during the winter?

The water temperature in the Seto Inland Sea in Akashi during the winter ranges from 11°C to 19°C (52°F to 66°F).

What is the water temperature in Akashi during the spring?

The water temperature in the Seto Inland Sea in Akashi during the spring ranges from 11°C to 22°C (52°F to 72°F).

What is the water temperature in Akashi during the summer?

The water temperature in the Seto Inland Sea in Akashi during the summer ranges from 17°C to 30°C (63°F to 86°F).

What is the water temperature in Akashi during the fall?

The water temperature in the Seto Inland Sea in Akashi during the fall ranges from 17°C to 30°C (63°F to 86°F).

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

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

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

In September, the water temperature in the Seto Inland Sea in Akashi will range between 73°F (23°C) and 86°F (30°C)