All data are in degrees Fahrenheit

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Japan > Honchō

Water temperature in Honchō

Detailed information about the current water temperature in Honchō. 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 Honchō now

48.6

°F

January 30, 13:57

Trend:

stable

Yesterday:

48.5°F

Tomorrow:

48.3°F

Sunrise:

06:42

Sunset:

17:05

Day Length:

10 h. 23 min.

Honchō in February

Minimum:

49.4°F

Average:

54.0°F

Maximum:

59.3°F

Sea water temperature in Honchō today

As of now, in Honchō, the water temperature is 48.6°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 2.5°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 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 minimum temperature for this date. The maximum temperature recorded for this date was 56.3°F on 2016, while the historical minimum was 48.2°F on 2025.

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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 48.6°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Honchō

Date Current Year

actual* / forecast**

 last year 10 years average
Jan 16 47.7°F 50.4°F 52.5°F
Jan 17 48.5°F 50.7°F 52.7°F
Jan 18 49.9°F 49.8°F 52.8°F
Jan 19 50.1°F 49.7°F 52.9°F
Jan 20 50.8°F 50.0°F 52.6°F
Jan 21 51.3°F 49.7°F 52.1°F
Jan 22 50.5°F 48.1°F 52.0°F
Jan 23 49.7°F 47.7°F 52.0°F
Jan 24 48.7°F 48.7°F 52.0°F
Jan 25 48.8°F 49.4°F 51.3°F
Jan 26 49.6°F 48.9°F 51.2°F
Jan 27 49.2°F 49.4°F 51.4°F
Jan 28 48.6°F 49.8°F 51.2°F
Jan 29 48.5°F 49.2°F 51.1°F
Jan 30 48.6°F 48.2°F 51.1°F
Jan 31 48.3°F 48.9°F 50.8°F
Feb 1 48.6°F 48.9°F 51.1°F
Feb 2 48.2°F 49.7°F 50.7°F
Feb 3 48.7°F 50.6°F 51.2°F
Feb 4 48.7°F 49.2°F 51.3°F
Feb 5 49.0°F 49.2°F 51.6°F
Feb 6 49.1°F 49.6°F 51.6°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 Honchō by month

January

February

March

April

May

June

July

August

September

October

November

December

In Honchō, the months July through September offer comfortable swimming conditions, which amounts to 113 swimming days.
The warmest water in Honchō was recorded on July 30, 2024, reaching a 88.7°F. While the coldest temperature occurred on February 16, 2022, dipping to 46.0°F. The average readings by season are 53.8°F in Winter, 60.3°F in Spring, 78.4°F in Summer, and 71.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Matsudo 48.6°F 7mi
Chiba 49.6°F 10mi
Ichihara 50.4°F 14mi
Tokyo 49.0°F 17mi
Kawasaki 51.3°F 20mi
Kisarazu 52.6°F 22mi
Kimitsu 53.1°F 25mi
Yokohama 54.1°F 26mi
Futtsu 54.8°F 29mi
Yokosuka 56.2°F 34mi

* current water temperature in this city

** straight line distance from Honchō