Water temperature in Nagasaki
63.9
°F
April 16, 20:38
Trend:
stableYesterday:
64.3°FTomorrow:
64.1°F
Sunrise:
Sunset:
Day Length:
13 h. 0 min.Nagasaki in April
Minimum:
59.2°FAverage:
61.1°FMaximum:
62.8°FSea water temperature in Nagasaki today
As of now, in Nagasaki, the water temperature is 63.9°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 1.9°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.Recent sea temperature and forecast
Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 64.3°F on 2022, while the historical minimum was 59.6°F on 2025.
Daily water temperature in Nagasaki
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Apr 2 | 63.1°F | 58.4°F | 60.8°F |
| Apr 3 | 63.3°F | 57.4°F | 60.7°F |
| Apr 4 | 63.2°F | 55.7°F | 60.9°F |
| Apr 5 | 63.6°F | 56.4°F | 61.0°F |
| Apr 6 | 63.1°F | 57.0°F | 61.1°F |
| Apr 7 | 63.5°F | 57.2°F | 61.0°F |
| Apr 8 | 63.1°F | 58.3°F | 61.0°F |
| Apr 9 | 62.2°F | 59.5°F | 61.3°F |
| Apr 10 | 62.3°F | 59.8°F | 61.5°F |
| Apr 11 | 62.2°F | 59.7°F | 61.5°F |
| Apr 12 | 62.5°F | 60.9°F | 61.5°F |
| Apr 13 | 62.5°F | 61.0°F | 61.8°F |
| Apr 14 | 62.6°F | 60.2°F | 61.9°F |
| Apr 15 | 64.3°F | 60.0°F | 62.2°F |
| Apr 16 | 63.9°F | 59.6°F | 62.0°F |
| Apr 17 | 64.1°F | 60.3°F | 62.2°F |
| Apr 18 | 64.3°F | 61.5°F | 62.5°F |
| Apr 19 | 64.4°F | 61.8°F | 62.5°F |
| Apr 20 | 64.3°F | 61.9°F | 62.5°F |
| Apr 21 | 64.7°F | 63.5°F | 62.8°F |
| Apr 22 | 64.9°F | 63.2°F | 63.0°F |
| Apr 23 | 65.0°F | 63.2°F | 63.1°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.