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 15.79°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.

60.4

°F

December 8, 02:57

Trend:

decreasing

Yesterday:

61.0°F

Tomorrow:

60.1°F

Sunrise:

06:58

Sunset:

16:55

Day Length:

9 h. 57 min.

Marugame in December

Minimum:

50.9°F

Average:

53.7°F

Maximum:

58.1°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 60.4°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 0.5°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 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 62.8°F on 2022, while the historical minimum was 58.9°F on 2017.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.1°F, the minimum temperature may reach 58.6°F, and the maximum might stay at 60.1°F.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
Nov 24	65.3°F	66.5°F	65.0°F
Nov 25	65.2°F	66.2°F	64.7°F
Nov 26	65.0°F	66.0°F	64.5°F
Nov 27	64.5°F	65.8°F	64.2°F
Nov 28	64.5°F	65.7°F	64.0°F
Nov 29	64.3°F	64.9°F	63.6°F
Nov 30	63.5°F	63.7°F	63.3°F
Dec 1	64.1°F	63.5°F	63.3°F
Dec 2	63.8°F	62.9°F	62.9°F
Dec 3	63.6°F	62.3°F	62.5°F
Dec 4	63.2°F	62.3°F	62.2°F
Dec 5	61.3°F	62.4°F	61.9°F
Dec 6	61.4°F	62.3°F	61.8°F
Dec 7	61.0°F	61.9°F	61.6°F
Dec 8	60.4°F	61.2°F	61.0°F
Dec 9	60.1°F	60.9°F	60.6°F
Dec 10	59.5°F	60.7°F	60.0°F
Dec 11	59.2°F	60.4°F	59.8°F
Dec 12	59.1°F	60.3°F	59.6°F
Dec 13	58.9°F	60.2°F	59.4°F
Dec 14	58.6°F	60.3°F	59.2°F
Dec 15	58.7°F	59.9°F	59.2°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 114 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 54.6°F in Winter, 57.6°F in Spring, 76.2°F in Summer, and 74.4°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Takamatsu	60.9°F	16mi
Kurashiki	60.4°F	21mi
Okayama	60.3°F	27mi
Fukuyama	60.0°F	27mi
Niihama	62.5°F	35mi
Saijō	63.9°F	43mi
Tokushima	62.0°F	47mi
Himeji	61.8°F	64mi

* current water temperature in this city

** straight line distance from Marugame