January weather forecastNumazu, Japan
January
Weather in January
Sea temperature
In January, the average sea temperature in Numazu, Japan, is 15.8°C (60.4°F).Note: In water with a temperature of 15.8°C (60.4°F), most individuals do not find swimming enjoyable. As the temperature falls from 21°C (69.8°F) to 15°C (59°F), breathing control becomes more difficult.
Daylight
In Numazu, the average length of the day in January is 10h and 6min.On the first day of the month, sunrise is at 06:52 and sunset at 16:42. On the last day of January, sunrise is at 06:44 and sunset at 17:10 JST.
Updated: Jul 25, 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 Numazu, the average seawater temperature in January is 15.8°C (60.4°F). For swimming, a surface water temperature of 15.8°C (60.4°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
The average day length in January is 10h and 6min.
On the first day of January, sunrise is at 06:52 and sunset at 16:42. On the last day of the month, sunrise is at 06:44 and sunset at 17:10 JST.
Average sea temperature in January
Numazu, Japan
- Average sea temperature in January: 15.8°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.9°C).
Average daylight in January
Numazu, Japan
- Average daylight in January: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
