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Ulsan in April

Find out everything about the water temperature in Ulsan in April. Average, minimum and maximum recorded temperatures as well as daily temperature in April for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in April
Minimum:

54.9 °F

Average:

58.2 °F

Maximum:

61.6 °F

Sea water temperature in Ulsan in April

In the city of Ulsan, the month of April is too cold for swimming. The minimum recorded temperature during this month was 54.9°F on April 3, 2018, with an average temperature being 58.2°F and a maximum temperature reaching 61.6°F on April 18, 2021.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In April, the sea temperature remains relatively stable. The average temperature stays close to 58.2°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Apr 1 57.1°F 56.0°F 58.0°F
Apr 2 57.4°F 56.4°F 58.4°F
Apr 3 57.4°F 56.8°F 58.2°F
Apr 4 57.3°F 57.2°F 58.6°F
Apr 5 57.6°F 58.0°F 58.9°F
Apr 6 57.7°F 57.9°F 59.2°F
Apr 7 57.6°F 57.5°F 59.5°F
Apr 8 57.5°F 58.0°F 59.8°F
Apr 9 57.8°F 58.3°F 59.7°F
Apr 10 57.8°F 58.7°F 57.3°F
Apr 11 57.9°F 58.8°F 56.6°F
Apr 12 57.9°F 58.4°F 57.1°F
Apr 13 58.3°F 59.9°F 58.4°F
Apr 14 57.9°F 58.8°F 58.3°F
Apr 15 57.8°F 58.9°F 58.2°F
Apr 16 57.9°F 58.9°F 57.1°F
Apr 17 58.1°F 59.4°F 58.0°F
Apr 18 58.1°F 59.1°F 56.3°F
Apr 19 58.1°F 60.1°F 56.8°F
Apr 20 58.4°F 60.1°F 59.7°F
Apr 21 58.2°F 60.1°F 59.8°F
Apr 22 58.5°F 60.3°F 60.2°F
Apr 23 58.8°F 60.5°F 59.9°F
Apr 24 58.9°F 60.4°F 59.7°F
Apr 25 58.9°F 60.2°F 59.9°F
Apr 26 59.1°F 59.6°F 60.9°F
Apr 27 59.3°F 60.9°F 59.3°F
Apr 28 59.1°F 60.3°F 58.5°F
Apr 29 59.3°F 60.3°F 58.8°F
Apr 30 59.4°F 60.3°F 60.4°F

Sea water temperature in Ulsan by month

In Ulsan, the months July through September offer comfortable swimming conditions, which amounts to 83 swimming days. The warmest water in Ulsan was recorded on August 18, 2024, reaching a 85.3°F. While the coldest temperature occurred on March 5, 2022, dipping to 53.1°F. The average readings by season are 58.1°F in Winter, 58.6°F in Spring, 73.9°F in Summer, and 71.0°F in Autumn. The average temperature in April is slightly warmer than March's average of 56.2°F. And in May, the temperature is expected to rise further, potentially reaching an average of 61.5°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Pohang 63.6°F 34mi
Busan 65.7°F 34mi
Changwon 62.0°F 42mi

* current water temperature in this city

** straight line distance from Ulsan