Swimming in Nagasaki in december 2026: Average sea temperature in december and tide times in december 2026
Average sea temperature in Nagasaki in december 2026.
In december, according to seasonal norms, the sea temperature in Nagasaki is:
Minimum: 61°F
Average: 66°F
Maximum: 71°F
Other useful seasonal weather averages in december:
- Outside temperature: 49°F to 55°F
- Most common weather: "Clear/Sunny"
- The wind blows at 4.4mph
- It rains a total of 6.4in, over 6 day(s).
Should we swim in Nagasaki in december?
Yes... and no. The water temperature in Nagasaki in december is cool
Swimming in december on the beaches of Nagasaki is possible but the sea water is cool. So even though the sea temperature sometimes climbs to 71°F, it can also be as low as 61°F! Note that the average is 66°F.
Note also that in december, the climate is tolerable with an average outside temperature of 52°F, 6.4in of precipitation (over 6 days) and 75.15 % humidity.
Water and normal seasonal temperatures in Nagasaki in december
| December | |||
| Average sea temperature | 66°F | ||
| Minimum sea temperature | 61°F | ||
| Maximum sea temperature | 71°F | ||
| Average outside temperature | 52°F | ||
| Maximum outside temperature | 56°F | ||
| Minimum outside temperature | 50°F | ||
| Wind speed | 14.3mph | ||
| Wind temperature | 45°F | ||
| Precipitation | 6.4in | ||
| Number of days of rain | 6 jour(s) (20%) | ||
| Humidity | 76% | ||
| Visibility in kilometers | 9.45km | ||
| Cloud cover | 50% | ||
| Our opinion | cool swimming |
Chart of the tides in december 2026
Tide times in december 2026 in Nagasaki
Swim elsewhere in Japan in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Tokyo in december | 63°F | 68°F | cool swimming | Fukuoka in december | 65°F | 70°F | cool swimming | Hiroshima in december | 63°F | 69°F | cold swimming | Kochi in december | 68°F | 73°F | cool swimming | Nagoya in december | 63°F | 68°F | cold swimming | Okinawa in december | 75°F | 78°F | pleasant swimming | Osaka in december | 64°F | 68°F | cool swimming | Sapporo (Hokkaido) in december | 48°F | 52°F | freezing swimming | Abashiri in december | 40°F | 44°F | freezing swimming | Akita in december | 57°F | 61°F | freezing swimming | Aomori in december | 55°F | 59°F | freezing swimming | Hakodate in december | 50°F | 56°F | freezing swimming | Hakone in december | 65°F | 70°F | cool swimming | Izumo in december | 64°F | 69°F | cool swimming | Kagoshima (Kyushu) in december | 70°F | 73°F | cool swimming | Kanazawa in december | 60°F | 65°F | cold swimming | Kobe in december | 65°F | 68°F | cool swimming | Nago in december | 75°F | 77°F | pleasant swimming | Naha in december | 75°F | 78°F | pleasant swimming | Okayama in december | 63°F | 68°F | cool swimming |