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 9.43°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.

49.0

°F

February 11, 15:25

Trend:

decreasing

Yesterday:

49.3°F

Tomorrow:

48.6°F

Sunrise:

06:55

Sunset:

17:44

Day Length:

10 h. 49 min.

Marugame in February

Minimum:

52.4°F

Average:

54.9°F

Maximum:

57.6°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 49.0°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 1.9°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 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 58.0°F on 2016, while the historical minimum was 46.8°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.3°F, the minimum temperature may reach 47.9°F, and the maximum might stay at 48.7°F.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
Jan 28	53.4°F	51.5°F	52.2°F
Jan 29	50.7°F	50.1°F	51.9°F
Jan 30	50.8°F	50.7°F	51.6°F
Jan 31	50.4°F	51.0°F	51.7°F
Feb 1	49.4°F	51.3°F	51.3°F
Feb 2	49.7°F	51.8°F	51.3°F
Feb 3	50.0°F	52.2°F	51.5°F
Feb 4	49.2°F	51.6°F	51.3°F
Feb 5	48.8°F	52.2°F	51.4°F
Feb 6	50.8°F	52.5°F	51.1°F
Feb 7	51.2°F	51.9°F	51.1°F
Feb 8	50.7°F	52.2°F	51.2°F
Feb 9	49.3°F	52.5°F	50.7°F
Feb 10	49.3°F	52.6°F	51.1°F
Feb 11	49.0°F	52.9°F	50.8°F
Feb 12	48.6°F	52.2°F	50.5°F
Feb 13	48.7°F	51.5°F	50.5°F
Feb 14	48.5°F	51.6°F	50.4°F
Feb 15	47.9°F	49.4°F	49.8°F
Feb 16	48.2°F	49.9°F	50.1°F
Feb 17	48.3°F	49.5°F	50.1°F
Feb 18	47.9°F	49.2°F	49.8°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	49.1°F	16mi
Kurashiki	49.6°F	21mi
Okayama	47.4°F	27mi
Fukuyama	51.5°F	27mi
Niihama	51.2°F	35mi
Saijō	52.8°F	43mi
Tokushima	50.0°F	47mi
Himeji	48.6°F	64mi

* current water temperature in this city

** straight line distance from Marugame