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 10.38°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.

50.7

°F

February 18, 19:07

Trend:

increasing

Yesterday:

50.0°F

Tomorrow:

50.9°F

Sunrise:

06:48

Sunset:

17:51

Day Length:

11 h. 3 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 50.7°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. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 58.2°F on 2016, while the historical minimum was 45.7°F on 2018.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 51.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Marugame

Date	Current Year actual* / forecast**	last year	10 years average
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	51.0°F
Feb 11	49.9°F	52.9°F	50.7°F
Feb 12	50.2°F	52.2°F	50.5°F
Feb 13	48.7°F	51.5°F	50.3°F
Feb 14	49.1°F	51.6°F	50.3°F
Feb 15	49.7°F	49.4°F	49.8°F
Feb 16	49.2°F	49.9°F	50.0°F
Feb 17	50.0°F	49.5°F	50.1°F
Feb 18	50.7°F	49.2°F	49.8°F
Feb 19	50.9°F	47.4°F	50.0°F
Feb 20	51.0°F	48.0°F	50.1°F
Feb 21	50.8°F	48.6°F	49.9°F
Feb 22	51.0°F	46.7°F	50.1°F
Feb 23	50.9°F	47.3°F	49.9°F
Feb 24	51.1°F	47.9°F	50.2°F
Feb 25	51.4°F	48.7°F	50.5°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 54.2°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	49.3°F	16mi
Kurashiki	50.6°F	21mi
Okayama	49.2°F	27mi
Fukuyama	49.7°F	27mi
Niihama	52.0°F	35mi
Saijō	53.0°F	43mi
Tokushima	50.6°F	47mi
Himeji	50.4°F	64mi

* current water temperature in this city

** straight line distance from Marugame