Weather in January
Sea temperature
In Numazu, Japan, in January, the average water temperature is 15.8°C (60.4°F).Note: Most individuals do not find swimming at 15.8°C (60.4°F) to be enjoyable. As the water temperature declines below 21°C (69.8°F), maintaining control over one's breathing becomes harder.
Daylight
In January, the average length of the day in Numazu is 10h and 6min.On the first day of January in Numazu, Japan, 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.
Frequently asked questions
What is the sea temperature in January in Numazu?
In January, the average sea temperature in Numazu 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).
What is the average length of the day in January in Numazu?
In Numazu, Japan, the average day length in January is 10h and 6min.
When are sunrise and sunset in January in Numazu?
On the first day of January in Numazu, Japan, 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 1min
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).
Numazu, Japan
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