What is the current water temperature in Marugame?

Q: What is the current water temperature in Marugame?

As of now, in Marugame, the water temperature is 12.61°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 > Marugame

Water temperature in Marugame

Detailed information about the current water temperature in Marugame. 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.

54.7

°F

January 8, 07:34

Trend:

decreasing

Yesterday:

55.2°F

Tomorrow:

54.5°F

Sunrise:

07:12

Sunset:

17:11

Day Length:

9 h. 59 min.

Marugame in January

Minimum:

52.9°F

Average:

55.2°F

Maximum:

58.3°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 54.7°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 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 fall 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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 57.7°F on 2016, while the historical minimum was 51.0°F on 2023.

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 54.0°F, the minimum temperature may reach 53.4°F, and the maximum might stay at 54.5°F.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	57.9°F	53.3°F	55.2°F
Jan 2	57.6°F	53.9°F	54.9°F
Jan 3	54.9°F	52.7°F	54.4°F
Jan 4	55.0°F	53.5°F	54.4°F
Jan 5	55.1°F	53.8°F	54.4°F
Jan 6	55.5°F	54.2°F	54.4°F
Jan 7	55.2°F	54.1°F	54.2°F
Jan 8	54.7°F	51.5°F	53.8°F
Jan 9	54.5°F	51.7°F	53.5°F
Jan 10	54.2°F	51.8°F	53.2°F
Jan 11	54.2°F	50.6°F	53.2°F
Jan 12	54.1°F	51.2°F	53.2°F
Jan 13	53.8°F	51.7°F	52.8°F
Jan 14	53.4°F	50.7°F	52.5°F
Jan 15	53.7°F	51.3°F	52.7°F
Dec 25	58.2°F	55.6°F	56.6°F
Dec 26	57.7°F	56.0°F	56.5°F
Dec 27	57.5°F	54.4°F	56.1°F
Dec 28	57.5°F	54.2°F	55.9°F
Dec 29	57.5°F	54.9°F	55.1°F
Dec 30	57.6°F	54.8°F	55.3°F
Dec 31	57.7°F	55.0°F	55.5°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 Marugame by month

In Marugame, the months July through October offer comfortable swimming conditions, which amounts to 116 swimming days.

The warmest water in Marugame was recorded on September 2, 2025, reaching a 87.0°F. While the coldest temperature occurred on February 16, 2018, dipping to 45.3°F. The average readings by season are 54.3°F in Winter, 57.3°F in Spring, 76.3°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Takamatsu	54.7°F	16mi
Kurashiki	54.5°F	21mi
Okayama	54.2°F	27mi
Fukuyama	53.8°F	27mi
Niihama	56.3°F	35mi
Saijō	58.2°F	43mi
Tokushima	57.7°F	47mi
Himeji	55.2°F	64mi

* current water temperature in this city

** straight line distance from Marugame