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Bristol in September

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

58.4 °F

Average:

62.7 °F

Maximum:

69.1 °F

Sea water temperature in Bristol in September

In the city of Bristol, the month of September is somewhat too cool for swimming. The minimum recorded temperature during this month was 58.4°F on September 28, 2018, with an average temperature being 62.7°F and a maximum temperature reaching 69.1°F on September 11, 2023.

Most people would find such water temperature somewhat too cold for swimming. In September, the sea temperature remains relatively stable. The average temperature stays close to 62.7°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Sep 1 64.4°F 64.4°F 64.6°F
Sep 2 64.2°F 63.9°F 64.0°F
Sep 3 64.2°F 63.7°F 64.4°F
Sep 4 64.0°F 63.7°F 64.0°F
Sep 5 64.0°F 63.8°F 66.4°F
Sep 6 63.9°F 63.6°F 66.1°F
Sep 7 63.9°F 63.5°F 66.0°F
Sep 8 63.8°F 63.3°F 66.3°F
Sep 9 63.8°F 63.1°F 67.4°F
Sep 10 63.8°F 62.8°F 69.1°F
Sep 11 63.6°F 62.9°F 69.1°F
Sep 12 63.4°F 62.2°F 68.4°F
Sep 13 63.1°F 61.4°F 67.7°F
Sep 14 63.0°F 61.4°F 67.3°F
Sep 15 62.9°F 61.3°F 66.6°F
Sep 16 62.9°F 61.3°F 67.2°F
Sep 17 62.6°F 61.1°F 66.7°F
Sep 18 62.5°F 61.2°F 66.0°F
Sep 19 62.6°F 61.6°F 65.6°F
Sep 20 62.5°F 61.8°F 65.2°F
Sep 21 62.4°F 61.3°F 64.4°F
Sep 22 62.1°F 61.1°F 63.8°F
Sep 23 61.9°F 61.0°F 63.2°F
Sep 24 61.7°F 60.9°F 63.4°F
Sep 25 61.4°F 60.7°F 62.1°F
Sep 26 61.4°F 60.6°F 61.8°F
Sep 27 61.1°F 60.5°F 61.5°F
Sep 28 60.7°F 60.0°F 61.1°F
Sep 29 60.5°F 59.4°F 61.5°F
Sep 30 60.3°F 59.2°F 61.1°F

Sea water temperature in Bristol by month

In an average year, Bristol offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Bristol was recorded on July 23, 2021, reaching a 71.4°F. While the coldest temperature occurred on February 3, 2023, dipping to 40.2°F. The average readings by season are 45.6°F in Winter, 50.0°F in Spring, 64.0°F in Summer, and 57.5°F in Autumn. September's average temperature is a slight drop from August's average of 65.6°F. In October, the temperature is expected to decrease further, potentially averaging around 57.3°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Newport 46.5°F 20mi
Cardiff 47.0°F 25mi
Barry 47.6°F 30mi
Portland 51.7°F 62mi

* current water temperature in this city

** straight line distance from Bristol