All data are in degrees Fahrenheit

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Water temperature in Rui’an

Detailed information about the current water temperature in Rui’an. 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 Rui’an now

52.5

°F

January 15, 18:50

Trend:

increasing

Yesterday:

51.4°F

Tomorrow:

52.6°F

Sunrise:

06:50

Sunset:

17:24

Day Length:

10 h. 34 min.

Rui’an in January

Minimum:

52.3°F

Average:

55.5°F

Maximum:

60.1°F

Sea water temperature in Rui’an today

As of now, in Rui’an, the water temperature is 52.5°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 1.4°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 58.3°F on 2019, while the historical minimum was 48.2°F on 2021.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 52.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Rui’an

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 54.9°F 52.3°F 55.5°F
Jan 2 54.2°F 51.8°F 55.6°F
Jan 3 53.3°F 51.8°F 55.5°F
Jan 4 52.1°F 51.8°F 55.5°F
Jan 5 52.7°F 51.9°F 55.7°F
Jan 6 51.6°F 52.1°F 55.7°F
Jan 7 51.8°F 51.4°F 55.2°F
Jan 8 51.3°F 51.4°F 55.3°F
Jan 9 51.0°F 51.9°F 55.2°F
Jan 10 50.6°F 52.3°F 55.1°F
Jan 11 49.6°F 51.9°F 54.8°F
Jan 12 50.2°F 49.8°F 54.2°F
Jan 13 50.5°F 49.2°F 53.8°F
Jan 14 51.4°F 49.1°F 53.9°F
Jan 15 52.5°F 49.9°F 53.9°F
Jan 16 52.6°F 50.2°F 54.0°F
Jan 17 52.4°F 48.9°F 53.8°F
Jan 18 52.1°F 48.4°F 53.5°F
Jan 19 51.9°F 48.0°F 53.3°F
Jan 20 51.9°F 48.6°F 53.3°F
Jan 21 52.3°F 49.0°F 53.7°F
Jan 22 52.6°F 49.5°F 54.0°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 Rui’an by month

In Rui’an, the months June through October offer comfortable swimming conditions, which amounts to 149 swimming days.
The warmest water in Rui’an was recorded on August 11, 2022, reaching a 89.0°F. While the coldest temperature occurred on January 19, 2025, dipping to 48.0°F. The average readings by season are 55.7°F in Winter, 63.7°F in Spring, 82.5°F in Summer, and 75.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Wenzhou 51.1°F 15mi
Taizhou 47.7°F 77mi
Jiaojiang 47.6°F 81mi

* current water temperature in this city

** straight line distance from Rui’an