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Iwakuni in May

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

57.8 °F

Average:

63.0 °F

Maximum:

69.7 °F

Sea water temperature in Iwakuni in May

In the city of Iwakuni, the month of May is somewhat too cool for swimming. The minimum recorded temperature during this month was 57.8°F on May 6, 2021, with an average temperature being 63.0°F and a maximum temperature reaching 69.7°F on May 28, 2015.

Most people would find such water temperature somewhat too cold for swimming. Throughout the month of May, the sea temperature gradually gets warmer. Starting with an average temperature of 60.9°F at the beginning of the month, it steadily increases to around 65.5°F by the end.
Date 10 years average 2024 2023
May 1 60.6°F 61.2°F 59.3°F
May 2 60.8°F 61.8°F 58.9°F
May 3 61.0°F 61.8°F 59.0°F
May 4 60.8°F 61.1°F 59.6°F
May 5 60.6°F 61.2°F 59.6°F
May 6 60.7°F 61.3°F 62.6°F
May 7 61.0°F 61.3°F 62.6°F
May 8 61.1°F 61.4°F 62.9°F
May 9 61.4°F 61.4°F 62.7°F
May 10 60.9°F 60.9°F 60.5°F
May 11 60.8°F 60.8°F 61.2°F
May 12 61.6°F 61.6°F 61.9°F
May 13 61.8°F 61.8°F 62.0°F
May 14 62.0°F 62.0°F 62.1°F
May 15 62.2°F 61.5°F 62.4°F
May 16 62.7°F 62.1°F 64.4°F
May 17 62.6°F 60.6°F 65.5°F
May 18 63.4°F 60.7°F 66.7°F
May 19 63.8°F 61.2°F 66.3°F
May 20 63.9°F 63.5°F 63.7°F
May 21 64.3°F 64.1°F 65.0°F
May 22 64.3°F 63.5°F 65.4°F
May 23 64.7°F 63.8°F 65.4°F
May 24 65.1°F 64.7°F 65.5°F
May 25 66.0°F 67.3°F 65.6°F
May 26 65.9°F 66.6°F 63.7°F
May 27 65.9°F 66.7°F 64.4°F
May 28 66.2°F 66.7°F 64.8°F
May 29 65.9°F 64.9°F 64.9°F
May 30 66.1°F 65.3°F 65.0°F
May 31 66.4°F 65.5°F 65.2°F

Sea water temperature in Iwakuni by month

In Iwakuni, the months July through October offer comfortable swimming conditions, which amounts to 110 swimming days. The warmest water in Iwakuni was recorded on August 9, 2024, reaching a 86.1°F. While the coldest temperature occurred on February 16, 2018, dipping to 48.6°F. The average readings by season are 56.6°F in Winter, 57.8°F in Spring, 76.0°F in Summer, and 73.3°F in Autumn. The average temperature in May is slightly warmer than April's average of 57.2°F. And in June, the temperature is expected to rise further, potentially reaching an average of 69.5°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Hiroshima 68.3°F 21mi
Matsuyama 69.4°F 38mi
Saijō 66.8°F 58mi
Ōita 70.3°F 73mi
Beppu 69.9°F 74mi

* current water temperature in this city

** straight line distance from Iwakuni