All data are in degrees Fahrenheit

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Water temperature in Beidaihe

Detailed information about the current water temperature in Beidaihe. 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 Beidaihe now

78.9

°F

September 8, 07:29

Trend:

decreasing

Yesterday:

79.2°F

Tomorrow:

78.7°F

Sunrise:

05:36

Sunset:

18:23

Day Length:

12 h. 47 min.

Beidaihe in September

Minimum:

32.5°F

Average:

33.8°F

Maximum:

36.7°F

Sea water temperature in Beidaihe today

As of now, in Beidaihe, the water temperature is 78.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.4°F higher 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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 80.7°F on 2025, while the historical minimum was 76.0°F on 2022.

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. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 78.0°F, the minimum temperature may reach 77.4°F, and the maximum might stay at 78.7°F.

Daily water temperature in Beidaihe

Date Current Year

actual* / forecast**

last year 10 years average
Aug 25 82.2°F 81.6°F 80.1°F
Aug 26 81.6°F 80.4°F 79.6°F
Aug 27 82.0°F 79.9°F 79.3°F
Aug 28 81.8°F 79.5°F 79.3°F
Aug 29 80.9°F 80.7°F 79.1°F
Aug 30 80.7°F 80.4°F 78.8°F
Aug 31 80.7°F 80.0°F 78.5°F
Sep 1 80.5°F 79.8°F 78.5°F
Sep 2 79.7°F 79.9°F 78.0°F
Sep 3 79.5°F 81.0°F 78.2°F
Sep 4 79.7°F 80.6°F 78.0°F
Sep 5 79.4°F 80.5°F 78.0°F
Sep 6 80.0°F 79.7°F 77.9°F
Sep 7 79.2°F 79.7°F 77.9°F
Sep 8 78.9°F 80.7°F 77.5°F
Sep 9 78.7°F 79.3°F 77.4°F
Sep 10 78.2°F 78.6°F 76.9°F
Sep 11 78.2°F 78.2°F 76.9°F
Sep 12 78.0°F 78.8°F 76.6°F
Sep 13 77.7°F 79.4°F 76.3°F
Sep 14 77.7°F 79.1°F 76.4°F
Sep 15 77.4°F 78.9°F 76.0°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 Beidaihe by month

In Beidaihe, the months July through September offer comfortable swimming conditions, which amounts to 88 swimming days.
The warmest water in Beidaihe was recorded on August 6, 2026, reaching a 84.6°F. While the coldest temperature occurred on January 5, 2022, dipping to 32.0°F. The average readings by season are 35.0°F in Winter, 48.7°F in Spring, 76.2°F in Summer, and 63.5°F in Autumn.