Shinagawa
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Shinagawa, Japan

The best months for a swim in Shinagawa, Japan, are August and September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.
In January, the average sea temperature in Shinagawa, Japan, is 15.7°C (60.3°F). Note: For most, swimming in 15.7°C (60.3°F) is not an enjoyable activity. Weather in January »

The month with the coldest seawater in Shinagawa, Japan, is February, with an average sea temperature of 14°C (57.2°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in February »

In Shinagawa, Japan, the average seawater temperature in March is 14.3°C (57.7°F). Note: Swimming in 14.3°C (57.7°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in March »

In Shinagawa, Japan, in April, the average water temperature is 15.8°C (60.4°F). Note: For swimming, a surface water temperature of 15.8°C (60.4°F) is not enjoyable for the majority. Weather in April »

In May, the average sea temperature in Shinagawa, Japan, is 17.8°C (64°F). Note: For most, swimming in 17.8°C (64°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F). Weather in May »

In Shinagawa, Japan, in June, the average water temperature is 20.8°C (69.4°F). Note: Swimming in 20.8°C (69.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in June »

In Shinagawa, Japan, in July, the average water temperature is 24.2°C (75.6°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.2°C (75.6°F) water. Weather in July »

The ideal sea water temperature of 25.7°C (78.3°F) make August the best time for swimming and other water activities in Shinagawa, Japan. The month with the warmest seawater is August, with an average sea temperature of 25.7°C (78.3°F). Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. Weather in August »

The ideal sea water temperature of 25.3°C (77.5°F) make September the best time for swimming and other water activities in Shinagawa, Japan. In Shinagawa, Japan, the average water temperature is 25.3°C (77.5°F). Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods. Weather in September »

In Shinagawa, Japan, in October, the average water temperature is 22.2°C (72°F). Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.2°C (72°F) water. Weather in October »

In November, the average sea temperature in Shinagawa, Japan, is 20°C (68°F). Note: Swimming in 20°C (68°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F). Weather in November »

In December, the average sea temperature in Shinagawa, Japan, is 17.3°C (63.1°F). Note: For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. Weather in December »

What month is the sea coldest in Shinagawa?

February is the month with the coldest seawater in Shinagawa, with an average sea temperature of 14°C (57.2°F).

When are the longest days in Shinagawa?

With an average of 14.5h of daylight, June has the longest days of the year in Shinagawa.

What is the month with the warmest sea water in Shinagawa?

August is the month with the warmest seawater in Shinagawa, Japan, with an average sea temperature of 25.7°C (78.3°F).

What is the month with the shortest days in Shinagawa?

With an average of 9.8h of daylight, December has the shortest days of the year in Shinagawa.
Average sea temperature - Shinagawa, Japan

The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).

Average daylight - Shinagawa, Japan

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).