October weather forecastHitachi, Japan
October
Weather in October
Sea temperature
In October, the average sea temperature in Hitachi, Japan, is 19.4°C (66.9°F).Note: In 19.4°C (66.9°F), swimming is not an enjoyable activity for most. As the temperature decreases from 21°C (69.8°F) to 15°C (59°F), it becomes harder to control breathing.
Daylight
The average length of the day in October is 11h and 16min.On the first day of the month, sunrise is at 05:32 and sunset at 17:21. On the last day of October, sunrise is at 05:59 and sunset at 16:42 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 October, the average sea temperature is 19.4°C (66.9°F). Swimming in 19.4°C (66.9°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).
The average day length in October is 11h and 16min.
On the first day of October in Hitachi, sunrise is at 05:32 and sunset at 17:21. On the last day of the month, sunrise is at 05:59 and sunset at 16:42 JST.
Average sea temperature in October
Hitachi, Japan
- Average sea temperature in October: 19.4°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 October
Hitachi, Japan
- Average daylight in October: 11h and 18min
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).





