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 10.92°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.

51.7

°F

March 25, 03:44

Trend:

stable

Yesterday:

51.8°F

Tomorrow:

51.7°F

Sunrise:

06:03

Sunset:

18:20

Day Length:

12 h. 17 min.

Marugame in March

Minimum:

52.1°F

Average:

54.4°F

Maximum:

57.6°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 51.7°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 1.5°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature slightly varies from the average of the past two weeks. 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 58.7°F on 2016, while the historical minimum was 49.6°F on 2025.

latest data

last year

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 52.2°F, with minimum temperature starting at 51.7°F, while the maximum might reach 52.9°F.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
Mar 11	51.0°F	50.0°F	51.5°F
Mar 12	51.1°F	50.5°F	51.7°F
Mar 13	54.1°F	50.9°F	52.2°F
Mar 14	52.9°F	47.9°F	52.0°F
Mar 15	51.1°F	48.7°F	51.7°F
Mar 16	50.7°F	49.3°F	51.9°F
Mar 17	51.3°F	49.9°F	52.1°F
Mar 18	51.0°F	50.5°F	52.1°F
Mar 19	51.6°F	50.9°F	52.4°F
Mar 20	51.4°F	48.2°F	52.3°F
Mar 21	51.7°F	47.8°F	52.5°F
Mar 22	52.1°F	50.3°F	52.8°F
Mar 23	52.6°F	48.4°F	53.2°F
Mar 24	51.8°F	51.2°F	53.3°F
Mar 25	51.7°F	49.6°F	53.2°F
Mar 26	51.7°F	50.4°F	53.2°F
Mar 27	51.7°F	50.1°F	53.2°F
Mar 28	52.1°F	50.9°F	53.7°F
Mar 29	52.6°F	51.8°F	54.1°F
Mar 30	52.2°F	52.4°F	53.8°F
Mar 31	52.5°F	53.0°F	54.1°F
Apr 1	52.9°F	53.5°F	54.4°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 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 54.2°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	52.3°F	16mi
Kurashiki	54.3°F	21mi
Okayama	53.3°F	27mi
Fukuyama	52.5°F	27mi
Niihama	53.2°F	35mi
Saijō	54.4°F	43mi
Tokushima	52.7°F	47mi
Himeji	51.8°F	64mi

* current water temperature in this city

** straight line distance from Marugame