All data are in degrees Fahrenheit

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Water temperature in Keelung

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

82.7

°F

September 15, 13:04

Trend:

decreasing

Yesterday:

82.9°F

Tomorrow:

82.6°F

Sunrise:

05:39

Sunset:

17:58

Day Length:

12 h. 19 min.

Keelung in September

Minimum:

64.7°F

Average:

68.1°F

Maximum:

70.7°F

Sea water temperature in Keelung today

As of now, in Keelung, the water temperature is 82.7°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.8°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 stay about the same.

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 83.8°F on 2024, while the historical minimum was 79.8°F on 2015.

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 82.2°F, the minimum temperature may reach 81.8°F, and the maximum might stay at 82.6°F.

Daily water temperature in Keelung

Date Current Year

actual* / forecast**

last year 10 years average
Sep 1 82.9°F 85.2°F 83.0°F
Sep 2 82.9°F 84.7°F 82.9°F
Sep 3 83.8°F 84.5°F 83.0°F
Sep 4 84.4°F 84.2°F 83.2°F
Sep 5 84.5°F 83.7°F 83.2°F
Sep 6 84.5°F 83.6°F 83.1°F
Sep 7 84.1°F 83.2°F 82.8°F
Sep 8 83.9°F 84.2°F 82.9°F
Sep 9 84.1°F 84.3°F 82.8°F
Sep 10 85.0°F 85.0°F 83.1°F
Sep 11 84.0°F 84.7°F 83.0°F
Sep 12 83.2°F 84.6°F 82.8°F
Sep 13 82.9°F 84.8°F 82.5°F
Sep 14 82.9°F 84.6°F 82.1°F
Sep 15 82.7°F 83.8°F 81.9°F
Sep 16 82.6°F 84.1°F 81.9°F
Sep 17 82.5°F 83.5°F 81.7°F
Sep 18 82.4°F 83.2°F 81.7°F
Sep 19 82.4°F 83.0°F 81.7°F
Sep 20 82.1°F 81.8°F 81.3°F
Sep 21 81.9°F 81.5°F 81.1°F
Sep 22 81.8°F 81.3°F 81.1°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 Keelung by month

In Keelung, the months May through November offer comfortable swimming conditions, which amounts to 220 swimming days.
The warmest water in Keelung was recorded on July 19, 2024, reaching a 86.6°F. While the coldest temperature occurred on March 23, 2025, dipping to 62.4°F. The average readings by season are 68.2°F in Winter, 72.6°F in Spring, 82.8°F in Summer, and 78.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Taipei 86.2°F 14mi
Banqiao 86.4°F 19mi
Taoyuan City 86.6°F 29mi
Hsinchu 86.9°F 53mi

* current water temperature in this city

** straight line distance from Keelung