All data are in degrees Fahrenheit

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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.
Sea temperature in Marugame now

83.4

°F

August 11, 20:49

Trend:

stable

Yesterday:

83.0°F

Tomorrow:

83.0°F

Sunrise:

05:22

Sunset:

18:57

Day Length:

13 h. 35 min.

Marugame in August

Minimum:

51.0°F

Average:

53.7°F

Maximum:

57.7°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 83.4°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 1.7°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 fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 82.7°F on 2018, while the historical minimum was 80.6°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 83.9°F, with minimum temperature starting at 83.0°F, while the maximum might reach 84.3°F.

Daily water temperature in Marugame

Date Current Year

actual* / forecast**

last year 10 years average
Jul 28 84.0°F 81.5°F 80.1°F
Jul 29 83.3°F 80.9°F 80.2°F
Jul 30 83.9°F 81.4°F 80.5°F
Jul 31 83.1°F 82.9°F 80.8°F
Aug 1 82.4°F 81.8°F 80.7°F
Aug 2 82.1°F 81.8°F 80.8°F
Aug 3 81.9°F 84.5°F 81.4°F
Aug 4 82.9°F 82.3°F 81.4°F
Aug 5 83.5°F 84.2°F 81.6°F
Aug 6 83.7°F 83.8°F 81.8°F
Aug 7 84.5°F 84.0°F 82.1°F
Aug 8 83.2°F 83.1°F 82.1°F
Aug 9 83.2°F 83.1°F 82.1°F
Aug 10 83.0°F 82.6°F 81.6°F
Aug 11 83.4°F 82.7°F 81.6°F
Aug 12 83.0°F 82.7°F 81.3°F
Aug 13 83.7°F 82.9°F 82.0°F
Aug 14 83.8°F 82.1°F 82.0°F
Aug 15 84.1°F 83.7°F 82.4°F
Aug 16 84.3°F 83.3°F 82.6°F
Aug 17 84.3°F 83.4°F 82.6°F
Aug 18 84.0°F 83.7°F 82.3°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, 57.5°F in Spring, 76.4°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Takamatsu 81.7°F 16mi
Kurashiki 87.7°F 21mi
Okayama 83.6°F 27mi
Fukuyama 86.6°F 27mi
Niihama 85.9°F 35mi
Saijō 85.2°F 43mi
Tokushima 82.4°F 47mi
Himeji 84.2°F 64mi

* current water temperature in this city

** straight line distance from Marugame