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

81.1

°F

September 11, 21:04

Trend:

decreasing

Yesterday:

81.9°F

Tomorrow:

81.0°F

Sunrise:

05:45

Sunset:

18:18

Day Length:

12 h. 33 min.

Marugame in September

Minimum:

51.0°F

Average:

53.6°F

Maximum:

57.9°F

Sea water temperature in Marugame today

As of now, in Marugame, the water temperature is 81.1°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.0°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 84.9°F on 2024, while the historical minimum was 80.1°F on 2016.

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 80.7°F, the minimum temperature may reach 80.4°F, and the maximum might stay at 81.0°F.

Daily water temperature in Marugame

Date Current Year

actual* / forecast**

last year 10 years average
Aug 28 85.3°F 84.6°F 83.3°F
Aug 29 84.8°F 84.4°F 83.0°F
Aug 30 83.9°F 85.7°F 83.2°F
Aug 31 85.8°F 86.2°F 83.2°F
Sep 1 85.6°F 85.7°F 83.2°F
Sep 2 85.6°F 87.0°F 83.0°F
Sep 3 85.0°F 86.3°F 82.8°F
Sep 4 84.9°F 86.3°F 82.8°F
Sep 5 84.3°F 85.7°F 82.6°F
Sep 6 83.8°F 84.9°F 82.5°F
Sep 7 83.2°F 84.3°F 82.3°F
Sep 8 82.9°F 83.8°F 82.0°F
Sep 9 82.3°F 83.6°F 81.9°F
Sep 10 81.9°F 83.8°F 81.9°F
Sep 11 81.1°F 83.4°F 82.1°F
Sep 12 81.0°F 83.2°F 82.0°F
Sep 13 81.0°F 83.0°F 82.0°F
Sep 14 80.9°F 83.8°F 81.9°F
Sep 15 80.4°F 83.3°F 81.4°F
Sep 16 80.5°F 84.0°F 81.5°F
Sep 17 80.6°F 85.2°F 81.6°F
Sep 18 80.5°F 85.6°F 81.5°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, 57.5°F in Spring, 76.4°F in Summer, and 74.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Takamatsu 81.1°F 16mi
Kurashiki 81.2°F 21mi
Okayama 81.2°F 27mi
Fukuyama 81.2°F 27mi
Niihama 81.8°F 35mi
Saijō 81.4°F 43mi
Tokushima 80.3°F 47mi
Himeji 80.2°F 64mi

* current water temperature in this city

** straight line distance from Marugame