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

83.8

°F

August 23, 04:08

Trend:

stable

Yesterday:

83.6°F

Tomorrow:

83.8°F

Sunrise:

05:31

Sunset:

18:44

Day Length:

13 h. 13 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 83.8°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 0.8°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 stay about the same.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 84.3°F on 2025, while the historical minimum was 80.6°F on 2021.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.8°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
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 82.9°F 81.8°F
Aug 12 82.5°F 82.7°F 81.4°F
Aug 13 82.8°F 82.9°F 82.1°F
Aug 14 80.8°F 82.1°F 81.9°F
Aug 15 81.5°F 83.7°F 82.3°F
Aug 16 82.1°F 83.3°F 82.5°F
Aug 17 82.4°F 83.4°F 82.6°F
Aug 18 82.0°F 83.7°F 82.3°F
Aug 19 82.1°F 83.9°F 82.3°F
Aug 20 83.4°F 83.7°F 82.3°F
Aug 21 83.9°F 84.0°F 82.7°F
Aug 22 83.6°F 84.5°F 82.8°F
Aug 23 83.8°F 84.3°F 83.0°F
Aug 24 83.8°F 84.2°F 83.0°F
Aug 25 83.7°F 83.9°F 82.9°F
Aug 26 83.8°F 83.7°F 82.9°F
Aug 27 83.8°F 84.6°F 83.0°F
Aug 28 83.9°F 84.6°F 83.1°F
Aug 29 83.7°F 84.4°F 82.9°F
Aug 30 84.0°F 85.7°F 83.2°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 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 82.8°F 16mi
Kurashiki 84.9°F 21mi
Okayama 84.6°F 27mi
Fukuyama 85.4°F 27mi
Niihama 84.6°F 35mi
Saijō 85.3°F 43mi
Tokushima 82.2°F 47mi
Himeji 84.7°F 64mi

* current water temperature in this city

** straight line distance from Marugame