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 11.19°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.

52.1

°F

January 22, 08:14

Trend:

increasing

Yesterday:

52.0°F

Tomorrow:

52.3°F

Sunrise:

07:09

Sunset:

17:24

Day Length:

10 h. 15 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 52.1°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 0.4°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 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 49.5°F on 2021.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 51.6°F, the minimum temperature may reach 51.2°F, and the maximum might stay at 52.3°F.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
Jan 8	53.4°F	51.5°F	53.7°F
Jan 9	53.8°F	51.7°F	53.6°F
Jan 10	54.5°F	51.8°F	53.3°F
Jan 11	54.8°F	50.6°F	53.4°F
Jan 12	55.0°F	51.2°F	53.4°F
Jan 13	55.2°F	51.7°F	53.0°F
Jan 14	53.0°F	50.7°F	52.5°F
Jan 15	53.1°F	51.3°F	52.8°F
Jan 16	52.8°F	51.9°F	52.8°F
Jan 17	53.2°F	52.4°F	52.8°F
Jan 18	53.1°F	52.3°F	53.0°F
Jan 19	51.6°F	52.6°F	52.8°F
Jan 20	52.3°F	52.9°F	52.9°F
Jan 21	52.0°F	53.5°F	52.5°F
Jan 22	52.1°F	54.1°F	52.6°F
Jan 23	52.3°F	53.6°F	52.7°F
Jan 24	52.0°F	50.7°F	52.4°F
Jan 25	51.5°F	51.2°F	52.0°F
Jan 26	51.2°F	52.1°F	51.6°F
Jan 27	51.3°F	52.5°F	51.7°F
Jan 28	51.6°F	51.5°F	52.1°F
Jan 29	51.5°F	50.1°F	52.0°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	51.7°F	16mi
Kurashiki	54.2°F	21mi
Okayama	51.7°F	27mi
Fukuyama	55.0°F	27mi
Niihama	54.8°F	35mi
Saijō	56.5°F	43mi
Tokushima	53.8°F	47mi
Himeji	52.7°F	64mi

* current water temperature in this city

** straight line distance from Marugame