All data are in degrees Fahrenheit

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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.
Sea temperature in Ichihara now

83.6

°F

August 28, 05:27

Trend:

stable

Yesterday:

84.3°F

Tomorrow:

83.8°F

Sunrise:

05:08

Sunset:

18:13

Day Length:

13 h. 5 min.

Ichihara in September

Minimum:

51.1°F

Average:

53.9°F

Maximum:

58.0°F

Sea water temperature in Ichihara today

As of now, in Ichihara, the water temperature is 83.6°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 1.0°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 stay about the same.

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 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 85.7°F on 2025, while the historical minimum was 79.9°F on 2017.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Ichihara

Date Current Year

actual* / forecast**

last year 10 years average
Aug 14 79.4°F 83.4°F 82.1°F
Aug 15 81.8°F 81.3°F 82.0°F
Aug 16 79.8°F 83.5°F 82.5°F
Aug 17 77.7°F 83.7°F 82.3°F
Aug 18 81.1°F 82.9°F 82.0°F
Aug 19 80.0°F 83.3°F 81.9°F
Aug 20 81.6°F 84.0°F 82.3°F
Aug 21 81.8°F 84.8°F 82.4°F
Aug 22 82.9°F 84.3°F 82.6°F
Aug 23 81.8°F 84.3°F 82.5°F
Aug 24 82.5°F 86.6°F 82.6°F
Aug 25 84.4°F 85.9°F 82.7°F
Aug 26 84.3°F 86.0°F 83.0°F
Aug 27 84.3°F 86.5°F 83.4°F
Aug 28 83.6°F 85.7°F 82.7°F
Aug 29 83.8°F 87.0°F 82.8°F
Aug 30 83.7°F 85.6°F 82.7°F
Aug 31 83.7°F 87.3°F 82.7°F
Sep 1 83.5°F 87.8°F 82.5°F
Sep 2 83.3°F 86.8°F 82.3°F
Sep 3 83.0°F 86.0°F 82.0°F
Sep 4 82.4°F 84.5°F 81.4°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, 60.4°F in Spring, 78.1°F in Summer, and 72.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Chiba 83.4°F 6mi
Kisarazu 83.2°F 12mi
Honchō 83.3°F 14mi
Kimitsu 82.3°F 17mi
Futtsu 81.0°F 21mi
Kawasaki 81.2°F 21mi
Matsudo 83.3°F 21mi
Tokyo 82.3°F 25mi
Yokohama 80.1°F 25mi
Isumi 78.3°F 27mi

* current water temperature in this city

** straight line distance from Ichihara