All data are in degrees Fahrenheit

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Water temperature in Hoi An

Detailed information about the current water temperature in Hoi 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 Hoi An now

73.3

°F

January 22, 19:15

Trend:

increasing

Yesterday:

73.0°F

Tomorrow:

73.3°F

Sunrise:

06:18

Sunset:

17:39

Day Length:

11 h. 21 min.

Hoi An in January

Minimum:

73.9°F

Average:

74.9°F

Maximum:

76.6°F

Sea water temperature in Hoi An today

As of now, in Hoi An, the water temperature is 73.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 1.0°F lower 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

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 76.8°F on 2020, while the historical minimum was 71.7°F on 2025.

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 73.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hoi An

Date Current Year

actual* / forecast**

last year 10 years average
Jan 8 74.0°F 73.7°F 74.6°F
Jan 9 73.9°F 73.7°F 74.6°F
Jan 10 73.4°F 73.4°F 74.5°F
Jan 11 72.8°F 72.8°F 74.2°F
Jan 12 72.8°F 72.9°F 74.2°F
Jan 13 72.6°F 73.0°F 74.2°F
Jan 14 72.5°F 73.1°F 74.2°F
Jan 15 72.7°F 73.2°F 74.3°F
Jan 16 72.1°F 73.2°F 74.3°F
Jan 17 73.3°F 73.3°F 74.5°F
Jan 18 73.0°F 72.3°F 74.3°F
Jan 19 72.9°F 72.5°F 74.4°F
Jan 20 72.4°F 72.5°F 74.3°F
Jan 21 73.0°F 72.0°F 74.3°F
Jan 22 73.3°F 71.7°F 74.3°F
Jan 23 73.3°F 71.2°F 74.4°F
Jan 24 73.2°F 70.6°F 74.2°F
Jan 25 73.1°F 71.0°F 74.1°F
Jan 26 73.0°F 71.5°F 74.0°F
Jan 27 73.0°F 71.6°F 74.0°F
Jan 28 72.9°F 71.7°F 73.9°F
Jan 29 72.8°F 71.7°F 73.8°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 Hoi An by month

In Hoi An, the water temperature is comfortable for swimming all year round.
The warmest water in Hoi An was recorded on September 9, 2017, reaching a 87.6°F. While the coldest temperature occurred on February 15, 2018, dipping to 68.4°F. The average readings by season are 74.9°F in Winter, 78.3°F in Spring, 84.8°F in Summer, and 82.9°F in Autumn.