Water temperature in Keelung

This data the coastal Keelung sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Keelung

Water temperature in Keelung today is 28°C. Based on our historical data over a period of ten years, the warmest water in this day in Keelung was recorded in 2017 and was 28.6°C, and the coldest was recorded in 2011 at 25.3°C. Sea water temperature in Keelung is expected to drop to 25.9°C in the next 10 days. September average water temperature in Keelung is 27.6°C, the minimum temperature is 25.2°C, and the maximum is 30°C.

The swimming season in Keelung lasts from January to December, twelve months per year! During those months, Keelung water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Keelung in winter reaches 20.3°C, in spring 22.6°C, in summer the average temperature rises to 28.1°C, and in autumn it is 25.4°C.

Keelung water temperature now

The sea salinity in Keelung is 33.88‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Keelung for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Keelung. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Keelung. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Keelung

Keelung weather forecast

Current temperature and weather

Data in a table show Keelung temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Keelung.

0-3 h	3-6 h	6-9 h	9-12 h
26.7°C	26.4°C	26.5°C	26.7°C

12-15 h	15-18 h	18-21 h	21-24 h
27°C	28.5°C	26.3°C	25.9°C

Keelung water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Keelung. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Keelung on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Keelung

The nearest beaches and cities from Keelung with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Taichung	29.2°C	31°C		0.61 m
Tancheng	28°C	27°C		0.98 m
Nangan	27.5°C	27°C		1.02 m
Haidao	27.8°C	29°C		0.72 m
Mailiao	29.5°C	30°C		0.63 m
Fuzhou	28.1°C	30°C		1.11 m
Dinghai	27.8°C	27°C		0.72 m
Houyu	28.1°C	30°C		1.19 m
Kengyuan	28°C	27°C		0.72 m
Xiahu	27.8°C	29°C		0.48 m

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Our report for Keelung is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.