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Perth in July

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

62.7 °F

Average:

64.8 °F

Maximum:

67.0 °F

Sea water temperature in Perth in July

In the city of Perth, the month of July is somewhat too cool for swimming. The minimum recorded temperature during this month was 62.7°F on July 31, 2023, with an average temperature being 64.8°F and a maximum temperature reaching 67.0°F on July 1, 2017.

Most people would find such water temperature somewhat too cold for swimming. In July, the sea temperature remains relatively stable. The average temperature stays close to 64.8°F throughout the month, with minimal changes.
Date 10 years average 2023 2022
Jul 1 66.1°F 65.2°F 66.0°F
Jul 2 66.0°F 65.2°F 65.8°F
Jul 3 65.8°F 65.1°F 65.9°F
Jul 4 65.8°F 65.1°F 65.8°F
Jul 5 65.8°F 65.2°F 65.7°F
Jul 6 65.7°F 65.3°F 65.7°F
Jul 7 65.6°F 65.0°F 65.5°F
Jul 8 65.4°F 64.6°F 65.6°F
Jul 9 65.1°F 64.5°F 65.5°F
Jul 10 65.0°F 64.6°F 65.4°F
Jul 11 64.8°F 64.3°F 65.0°F
Jul 12 64.6°F 64.5°F 64.9°F
Jul 13 64.7°F 64.5°F 65.0°F
Jul 14 64.8°F 64.7°F 65.4°F
Jul 15 64.7°F 64.2°F 65.3°F
Jul 16 64.6°F 64.2°F 65.3°F
Jul 17 64.7°F 64.3°F 65.1°F
Jul 18 64.7°F 64.4°F 65.1°F
Jul 19 64.6°F 64.3°F 64.9°F
Jul 20 64.7°F 64.4°F 64.9°F
Jul 21 64.6°F 64.4°F 65.0°F
Jul 22 64.5°F 64.5°F 64.7°F
Jul 23 64.4°F 63.6°F 64.4°F
Jul 24 64.1°F 63.0°F 64.4°F
Jul 25 64.1°F 62.9°F 64.2°F
Jul 26 64.0°F 62.9°F 64.0°F
Jul 27 64.1°F 63.0°F 64.1°F
Jul 28 64.2°F 63.0°F 63.9°F
Jul 29 64.3°F 62.9°F 64.2°F
Jul 30 64.1°F 63.0°F 63.7°F
Jul 31 64.0°F 62.7°F 63.9°F

Sea water temperature in Perth by month

In Perth, the months January through March offer comfortable swimming conditions, which amounts to 73 swimming days. The warmest water in Perth was recorded on February 27, 2022, reaching a 77.3°F. While the coldest temperature occurred on September 6, 2018, dipping to 60.8°F. The average readings by season are 73.1°F in Winter, 70.7°F in Spring, 64.9°F in Summer, and 65.7°F in Autumn. July's average temperature is a slight drop from June's average of 66.7°F. In August, the temperature is expected to decrease further, potentially averaging around 63.4°F.