Climate and monthly weather forecast
Komatsushima, Japan

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The best time to visit Komatsushima

The best months for a swim in Komatsushima, Japan, are July through September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

Weather in January

In January, the average sea temperature in Komatsushima, Japan, is 16.7°C (62.1°F). Note: In water with a temperature of 16.7°C (62.1°F), swimming is not a joy for most people. Weather in January »

Weather in February

With an average sea temperature of 16.3°C (61.3°F), February is the month with the coldest seawater in Komatsushima, Japan. Note: Most people find swimming in 16.3°C (61.3°F) to be not enjoyable. Weather in February »

Weather in March

In March, the average sea temperature in Komatsushima, Japan, is 16.8°C (62.2°F). Note: Swimming in water that is 16.8°C (62.2°F) is not enjoyable for most. Weather in March »

Weather in April

In April, the average sea temperature in Komatsushima, Japan, is 17.8°C (64°F). Note: Most people do not find pleasure in swimming when the water temperature is 17.8°C (64°F). Weather in April »

Weather in May

In May, the average sea temperature in Komatsushima, Japan, is 20.8°C (69.4°F). Note: Swimming in water with a temperature of 20.8°C (69.4°F) is not a pleasurable experience for the majority. Weather in May »

Weather in June

In Komatsushima, Japan, the average seawater temperature in June is 24.3°C (75.7°F). Note: If you're wary of the cold, the surrounding conditions—sunshine, wind, and air temperature become crucial when swimming in 24.3°C (75.7°F) waters. Weather in June »

Weather in July

The ideal sea water temperature of 26.8°C (80.2°F) makes July in Komatsushima, Japan, the best time for swimming and other water activities. In July, the average sea temperature is 26.8°C (80.2°F). Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods. Weather in July »

Weather in August

The perfect water temperature of 27.8°C (82°F) makes August a great period for swimming and other water activities in Komatsushima, Japan. The month with the warmest seawater is August, with an average sea temperature of 27.8°C (82°F). Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort. Weather in August »

Weather in September

The ideal sea water temperature of 27°C (80.6°F) makes September in Komatsushima, Japan, the best time for swimming and other water activities. In Komatsushima, the average seawater temperature in September is 27°C (80.6°F). Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations. Weather in September »

Weather in October

In Komatsushima, Japan, the average seawater temperature in October is 24.9°C (76.8°F). Note: When thinking about a swim in 24.9°C (76.8°F) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. Weather in October »

Weather in November

In November, the average sea temperature in Komatsushima, Japan, is 22.6°C (72.7°F). Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 22.6°C (72.7°F) waters. Weather in November »

Weather in December

In Komatsushima, Japan, in December, the average water temperature is 19.9°C (67.8°F). Note: In 19.9°C (67.8°F), swimming is not an enjoyable activity for most. Weather in December »
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Frequently asked questions

What month is the sea coldest in Komatsushima?

With an average sea temperature of 16.3°C (61.3°F), February is the month with the coldest seawater in Komatsushima.

When are the longest days in Komatsushima?

June has the longest days of the year, with an average of 14h and 24min of daylight.

What month is the sea warmest in Komatsushima?

The month with the warmest seawater is August, with an average sea temperature of 27.8°C (82°F).

What is the month with the shortest days in Komatsushima?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Komatsushima.

Is there Daylight Saving Time (DST) in Komatsushima?

Komatsushima does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.

Average sea temperature
Komatsushima, Japan

Average sea temperature - Komatsushima, Japan

The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is February (16.3°C).

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Average daylight
Komatsushima, Japan

Average daylight - Komatsushima, Japan

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

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Komatsushima, Japan

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