What is the current water temperature in Kisarazu?

Q: What is the current water temperature in Kisarazu?

As of now, in Kisarazu, the water temperature is 13.89°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Japan > Kisarazu

Water temperature in Kisarazu

Detailed information about the current water temperature in Kisarazu. 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.

57.0

°F

February 23, 14:11

Trend:

stable

Yesterday:

56.8°F

Tomorrow:

56.5°F

Sunrise:

06:19

Sunset:

17:29

Day Length:

11 h. 10 min.

Kisarazu in February

Minimum:

53.9°F

Average:

56.7°F

Maximum:

59.9°F

Sea water temperature in Kisarazu today

As of now, in Kisarazu, the water temperature is 57.0°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 3.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 57.6°F on 2025, while the historical minimum was 49.7°F on 2022.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.0°F, the minimum temperature may reach 54.8°F, and the maximum might stay at 56.7°F.

Daily water temperature in Kisarazu

Date	Current Year actual* / forecast**	last year	10 years average
Feb 9	56.4°F	54.2°F	55.1°F
Feb 10	56.5°F	54.1°F	55.0°F
Feb 11	57.1°F	52.6°F	54.8°F
Feb 12	56.8°F	52.0°F	54.6°F
Feb 13	57.9°F	52.6°F	54.4°F
Feb 14	59.2°F	53.2°F	54.3°F
Feb 15	59.3°F	51.8°F	54.3°F
Feb 16	57.9°F	52.2°F	54.3°F
Feb 17	57.6°F	55.9°F	54.9°F
Feb 18	57.5°F	56.0°F	54.8°F
Feb 19	58.8°F	54.5°F	54.6°F
Feb 20	59.1°F	54.7°F	54.5°F
Feb 21	58.9°F	54.7°F	54.2°F
Feb 22	56.8°F	55.8°F	53.7°F
Feb 23	57.0°F	57.6°F	53.9°F
Feb 24	56.5°F	56.2°F	53.4°F
Feb 25	56.4°F	55.3°F	53.2°F
Feb 26	56.5°F	54.3°F	53.3°F
Feb 27	56.7°F	54.3°F	53.5°F
Feb 28	56.5°F	54.8°F	53.3°F
Mar 1	54.8°F	56.0°F	53.5°F
Mar 2	54.9°F	53.7°F	53.7°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 Kisarazu by month

In Kisarazu, the months July through September offer comfortable swimming conditions, which amounts to 106 swimming days.

The warmest water in Kisarazu was recorded on August 18, 2023, reaching a 85.6°F. While the coldest temperature occurred on February 21, 2022, dipping to 49.6°F. The average readings by season are 56.3°F in Winter, 60.4°F in Spring, 77.0°F in Summer, and 72.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kimitsu	56.6°F	4mi
Futtsu	54.8°F	8mi
Ichihara	57.8°F	12mi
Kawasaki	59.5°F	15mi
Yokohama	57.2°F	16mi
Yokosuka	53.9°F	16mi
Chiba	57.6°F	18mi
Honchō	58.4°F	22mi
Tokyo	60.6°F	25mi
Fujisawa	58.8°F	26mi

* current water temperature in this city

** straight line distance from Kisarazu