All data are in degrees Fahrenheit

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Water temperature in Cape Town

Detailed information about the current water temperature in Cape Town. 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 Cape Town now

59.4

°F

April 7, 14:05

Trend:

stable

Yesterday:

60.5°F

Tomorrow:

59.4°F

Sunrise:

07:03

Sunset:

18:34

Day Length:

11 h. 31 min.

Cape Town in April

Minimum:

58.9°F

Average:

61.6°F

Maximum:

66.1°F

Sea water temperature in Cape Town today

As of now, in Cape Town, the water temperature is 59.4°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 1.6°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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 60.4°F on 2017, while the historical minimum was 51.8°F on 2024.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest 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 59.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Cape Town

Date Current Year

actual* / forecast**

last year 10 years average
Mar 24 58.5°F 59.7°F 58.4°F
Mar 25 59.5°F 60.6°F 58.6°F
Mar 26 59.3°F 60.0°F 58.1°F
Mar 27 60.8°F 60.8°F 58.2°F
Mar 28 61.1°F 59.8°F 58.0°F
Mar 29 61.7°F 57.8°F 58.0°F
Mar 30 61.8°F 60.5°F 58.2°F
Mar 31 62.0°F 60.1°F 58.2°F
Apr 1 61.9°F 59.7°F 58.5°F
Apr 2 61.8°F 57.5°F 58.0°F
Apr 3 61.6°F 57.8°F 57.8°F
Apr 4 61.1°F 57.6°F 57.7°F
Apr 5 62.0°F 57.1°F 58.0°F
Apr 6 60.5°F 57.4°F 58.0°F
Apr 7 59.4°F 59.2°F 57.8°F
Apr 8 59.4°F 59.6°F 57.8°F
Apr 9 59.6°F 60.1°F 57.9°F
Apr 10 59.5°F 60.1°F 57.9°F
Apr 11 59.1°F 62.0°F 57.5°F
Apr 12 59.3°F 61.7°F 57.7°F
Apr 13 59.6°F 61.4°F 58.0°F
Apr 14 59.5°F 60.5°F 57.8°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 Cape Town by month

In an average year, Cape Town offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Cape Town was recorded on March 13, 2026, reaching a 67.5°F. While the coldest temperature occurred on September 24, 2024, dipping to 47.4°F. The average readings by season are 60.0°F in Winter, 57.9°F in Spring, 57.6°F in Summer, and 57.5°F in Autumn.