September weather forecastHitachi, Japan
September
Weather in September
Sea temperature
In Hitachi, Japan, in September, the average water temperature is 23°C (73.4°F).Note: Factor in your tolerance to cold, the sunshine, the wind, and the air's warmth, and a swim in 23°C (73.4°F) might be tempting. It is interesting to note that Olympians compete in 25°C (77°F) to 28°C (82.4°F) water temperatures.
Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Hitachi, sunrise is at 05:08 and sunset at 18:06. On the last day of the month, sunrise is at 05:31 and sunset at 17:22 JST.
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
In September, the average sea temperature in Hitachi, Japan, is 23°C (73.4°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water.
In Hitachi, the average day length in September is 12h and 25min.
On the first day of September, sunrise is at 05:08 and sunset at 18:06. On the last day of the month, sunrise is at 05:31 and sunset at 17:22 JST.
Average sea temperature in September
Hitachi, Japan
- Average sea temperature in September: 23°C
The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (10.8°C).
Average daylight in September
Hitachi, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).





