Climate and monthly weather forecastInno-shima, Japan
Climate and monthly weather forecast
The best time to visit Inno-shima
The best months for a swim in Inno-shima, 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 Inno-shima, Japan, is 15°C (59°F). Note: Swimming in 15°C (59°F) does not offer a pleasant experience for most individuals. Weather in January »Weather in February
The month with the coldest seawater in Inno-shima, Japan, is February, with an average sea temperature of 13.7°C (56.7°F). Note: Dipping in 13.7°C (56.7°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties. Weather in February »Weather in March
In March, the average sea temperature in Inno-shima, Japan, is 13.8°C (56.8°F). Note: Immersing oneself in 13.8°C (56.8°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped. Weather in March »Weather in April
In Inno-shima, Japan, in April, the average water temperature is 15.4°C (59.7°F). Note: Swimming in water of 15.4°C (59.7°F) is not enjoyable for the majority of individuals. Weather in April »Weather in May
In May, the average sea temperature in Inno-shima, Japan, is 18.1°C (64.6°F). Note: For the majority of people, swimming in water at 18.1°C (64.6°F) is not enjoyable. Weather in May »Weather in June
In June, the average sea temperature in Inno-shima, Japan, is 21.9°C (71.4°F). Note: In water with a temperature of 21.9°C (71.4°F), swimming is not a joy for most people. Weather in June »Weather in July
The ideal sea water temperature of 25.3°C (77.5°F) makes July in Inno-shima, Japan, the best time for swimming and other water activities. In July, the average sea 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 July »Weather in August
An excellent water temperature of 27.2°C (81°F) makes August in Inno-shima, Japan, a prime for swimming and other water activities. With an average sea temperature of 27.2°C (81°F), August is the month with the warmest seawater. Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations. Weather in August »Weather in September
The ideal sea water temperature of 26°C (78.8°F) makes September in Inno-shima, Japan, the best time for swimming and other water activities. In September, the average sea temperature is 26°C (78.8°F). Note: In water temperatures ranging between 25°C (77°F) and 29°C (84.2°F), activities such as swimming and diving become highly pleasurable for long durations. Weather in September »Weather in October
In Inno-shima, Japan, in October, the average water temperature is 23.7°C (74.7°F). Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.7°C (74.7°F) water may be enjoyable. Weather in October »Weather in November
In November, the average sea temperature in Inno-shima, Japan, is 20.9°C (69.6°F). Note: For most individuals, swimming in 20.9°C (69.6°F) is not enjoyable. Weather in November »Weather in December
In December, the average sea temperature in Inno-shima, Japan, is 17.7°C (63.9°F). Note: For most, swimming in 17.7°C (63.9°F) is not an enjoyable activity. Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the coldest seawater in Inno-shima is February, with an average sea temperature of 13.7°C (56.7°F).
June has the longest days of the year in Inno-shima, with an average of 14h and 24min of daylight.
With an average sea temperature of 27.2°C (81°F), August is the month with the warmest seawater.
With an average of 9h and 54min of daylight, December has the shortest days of the year in Inno-shima, Japan.
Inno-shima does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average sea temperature
Inno-shima, Japan
The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (13.7°C).
Average daylight
Inno-shima, Japan
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
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).
