What is the current water temperature in Ichihara?

Q: What is the current water temperature in Ichihara?

As of now, in Ichihara, the water temperature is 15.03°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 > Ichihara

Water temperature in Ichihara

Detailed information about the current water temperature in Ichihara. 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.

59.1

°F

April 19, 09:30

Trend:

increasing

Yesterday:

59.0°F

Tomorrow:

59.6°F

Sunrise:

05:03

Sunset:

18:15

Day Length:

13 h. 12 min.

Ichihara in April

Minimum:

52.5°F

Average:

54.8°F

Maximum:

59.6°F

Sea water temperature in Ichihara today

As of now, in Ichihara, the water temperature is 59.1°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 0.9°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 water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 63.0°F on 2025, while the historical minimum was 57.9°F on 2019.

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 suggests a gradual increase. The average temperature is expected to rise up to 60.8°F, with minimum temperature starting at 59.6°F, while the maximum might reach 61.5°F.

Daily water temperature in Ichihara

Date	Current Year actual* / forecast**	last year	10 years average
Apr 5	58.6°F	55.5°F	57.2°F
Apr 6	59.5°F	55.8°F	57.4°F
Apr 7	60.9°F	56.9°F	57.8°F
Apr 8	61.4°F	56.9°F	58.6°F
Apr 9	59.0°F	56.7°F	58.4°F
Apr 10	59.8°F	57.5°F	58.5°F
Apr 11	62.3°F	57.7°F	58.5°F
Apr 12	62.5°F	58.0°F	58.7°F
Apr 13	61.4°F	58.1°F	58.7°F
Apr 14	61.6°F	58.5°F	58.6°F
Apr 15	60.3°F	59.8°F	59.2°F
Apr 16	60.7°F	61.6°F	59.8°F
Apr 17	58.4°F	60.3°F	59.6°F
Apr 18	59.0°F	61.0°F	60.0°F
Apr 19	59.1°F	63.0°F	60.0°F
Apr 20	59.6°F	62.3°F	60.6°F
Apr 21	60.4°F	63.1°F	61.3°F
Apr 22	60.7°F	62.1°F	61.6°F
Apr 23	61.3°F	62.2°F	62.2°F
Apr 24	61.1°F	62.2°F	62.0°F
Apr 25	61.1°F	62.2°F	62.1°F
Apr 26	61.5°F	62.3°F	62.4°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 Ichihara by month

In Ichihara, the months July through September offer comfortable swimming conditions, which amounts to 108 swimming days.

The warmest water in Ichihara was recorded on July 30, 2024, reaching a 88.3°F. While the coldest temperature occurred on February 2, 2019, dipping to 47.9°F. The average readings by season are 54.9°F in Winter, 60.3°F in Spring, 78.1°F in Summer, and 72.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Chiba	58.9°F	6mi
Kisarazu	61.8°F	12mi
Honchō	61.2°F	14mi
Kimitsu	61.4°F	17mi
Futtsu	60.9°F	21mi
Kawasaki	63.4°F	21mi
Matsudo	61.2°F	21mi
Tokyo	63.5°F	25mi
Yokohama	62.7°F	25mi
Isumi	60.4°F	27mi

* current water temperature in this city

** straight line distance from Ichihara