Weather in August
The ideal sea water temperature of 25.7°C (78.3°F) makes
August in
Shinagawa,
Japan, the best time for swimming and other water activities.
Sea temperature
With an average sea temperature of 25.7°C (78.3°F), August is the month with the warmest seawater.
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.
Daylight
The average length of the day in August in Shinagawa is 13h and 29min.
On the first day of August in Shinagawa, sunrise is at 04:49 and sunset at 18:45. On the last day of the month, sunrise is at 05:12 and sunset at 18:10 JST.