All data are in degrees Fahrenheit

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Water temperature in Hamamatsu

Detailed information about the current water temperature in Hamamatsu. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Hamamatsu now

69.0

°F

June 13, 03:34

Trend:

increasing

Yesterday:

68.9°F

Tomorrow:

69.2°F

Sunrise:

04:35

Sunset:

19:03

Day Length:

14 h. 28 min.

Hamamatsu in June

Minimum:

58.9°F

Average:

61.9°F

Maximum:

64.0°F

Sea water temperature in Hamamatsu today

As of now, in Hamamatsu, the water temperature is 69.0°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.9°F lower 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 reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 73.6°F on 2024, while the historical minimum was 69.8°F on 2017.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 69.8°F, with minimum temperature starting at 69.2°F, while the maximum might reach 70.4°F.

Daily water temperature in Hamamatsu

Date Current Year

actual* / forecast**

last year 10 years average
May 30 68.3°F 69.7°F 69.0°F
May 31 68.4°F 68.8°F 69.0°F
Jun 1 68.4°F 69.7°F 69.3°F
Jun 2 68.7°F 69.8°F 69.7°F
Jun 3 69.8°F 69.9°F 69.7°F
Jun 4 70.0°F 69.7°F 69.7°F
Jun 5 69.3°F 69.7°F 69.8°F
Jun 6 68.8°F 68.9°F 69.7°F
Jun 7 69.5°F 69.3°F 70.2°F
Jun 8 69.5°F 69.7°F 70.3°F
Jun 9 69.3°F 69.9°F 70.3°F
Jun 10 69.2°F 70.1°F 70.7°F
Jun 11 69.7°F 70.2°F 71.0°F
Jun 12 68.9°F 70.9°F 71.8°F
Jun 13 69.0°F 71.0°F 71.9°F
Jun 14 69.2°F 71.5°F 72.1°F
Jun 15 69.6°F 71.6°F 72.5°F
Jun 16 69.9°F 73.1°F 72.8°F
Jun 17 69.8°F 74.4°F 72.8°F
Jun 18 70.0°F 75.5°F 72.9°F
Jun 19 70.0°F 77.1°F 72.9°F
Jun 20 70.4°F 76.7°F 73.4°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.

Sea water temperature in Hamamatsu by month

In Hamamatsu, the months July through October offer comfortable swimming conditions, which amounts to 131 swimming days.
The warmest water in Hamamatsu was recorded on August 17, 2024, reaching a 86.9°F. While the coldest temperature occurred on February 6, 2026, dipping to 54.6°F. The average readings by season are 62.1°F in Winter, 62.8°F in Spring, 77.5°F in Summer, and 75.5°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Yaizu 69.3°F 35mi
Shizuoka 69.7°F 42mi
Hekinan 71.0°F 44mi
Nagoya 71.7°F 57mi

* current water temperature in this city

** straight line distance from Hamamatsu