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Jamestown in September

Find out everything about the water temperature in Jamestown 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:

67.6 °F

Average:

68.8 °F

Maximum:

70.1 °F

Sea water temperature in Jamestown in September

In the city of Jamestown, the month of September is somewhat comfortable for swimming. The minimum recorded temperature during this month was 67.6°F on September 23, 2023, with an average temperature being 68.8°F and a maximum temperature reaching 70.1°F on September 22, 2021.

While some may find it enjoyable for a brief swim, others might consider it a bit too cold for extended periods in the water. In September, the sea temperature remains relatively stable. The average temperature stays close to 68.8°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Sep 1 69.1°F 69.0°F 68.4°F
Sep 2 69.0°F 68.7°F 68.0°F
Sep 3 69.0°F 68.7°F 68.0°F
Sep 4 69.1°F 68.4°F 67.9°F
Sep 5 69.0°F 68.3°F 67.9°F
Sep 6 69.0°F 68.3°F 68.0°F
Sep 7 69.1°F 69.0°F 68.0°F
Sep 8 69.0°F 68.7°F 67.7°F
Sep 9 69.0°F 68.7°F 67.7°F
Sep 10 68.9°F 68.6°F 67.8°F
Sep 11 68.8°F 68.6°F 67.9°F
Sep 12 68.7°F 68.3°F 67.8°F
Sep 13 68.7°F 68.3°F 67.9°F
Sep 14 68.7°F 68.4°F 68.0°F
Sep 15 68.8°F 68.3°F 67.9°F
Sep 16 68.8°F 68.4°F 67.9°F
Sep 17 68.8°F 68.4°F 67.9°F
Sep 18 68.7°F 68.3°F 67.7°F
Sep 19 68.8°F 68.4°F 67.8°F
Sep 20 68.8°F 68.4°F 67.8°F
Sep 21 68.7°F 68.3°F 67.7°F
Sep 22 68.9°F 68.3°F 67.8°F
Sep 23 68.8°F 68.4°F 67.6°F
Sep 24 68.7°F 68.3°F 67.8°F
Sep 25 68.8°F 68.5°F 67.9°F
Sep 26 68.6°F 68.4°F 67.7°F
Sep 27 68.6°F 68.4°F 67.7°F
Sep 28 68.6°F 68.7°F 67.9°F
Sep 29 68.5°F 68.9°F 67.9°F
Sep 30 68.6°F 69.0°F 68.6°F

Sea water temperature in Jamestown by month

In Jamestown, the months January through June offer comfortable swimming conditions, which amounts to 167 swimming days. The warmest water in Jamestown was recorded on February 24, 2022, reaching a 79.6°F. While the coldest temperature occurred on October 11, 2022, dipping to 67.4°F. The average readings by season are 74.2°F in Winter, 76.9°F in Spring, 71.7°F in Summer, and 69.0°F in Autumn. September's average temperature is a slight drop from August's average of 69.9°F. In October, the temperature is expected to decrease further, potentially averaging around 68.7°F.