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Riga in September

Find out everything about the water temperature in Riga 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:

51.8 °F

Average:

61.6 °F

Maximum:

68.0 °F

Sea water temperature in Riga in September

In the city of Riga, the month of September is somewhat too cool for swimming. The minimum recorded temperature during this month was 51.8°F on September 26, 2021, with an average temperature being 61.6°F and a maximum temperature reaching 68.0°F on September 1, 2022.

Most people would find such water temperature somewhat too cold for swimming. Throughout the month of September, the sea temperature gradually gets colder. Starting with an average temperature of 63.9°F at the beginning of the month, it steadily decreases to around 59.2°F by the end.
Date 10 years average 2024 2023
Sep 1 64.9°F 67.8°F 65.7°F
Sep 2 64.8°F 67.8°F 65.4°F
Sep 3 64.3°F 67.3°F 64.6°F
Sep 4 64.0°F 67.4°F 64.3°F
Sep 5 64.0°F 67.4°F 64.1°F
Sep 6 63.8°F 66.6°F 63.8°F
Sep 7 63.7°F 66.6°F 63.9°F
Sep 8 63.4°F 66.1°F 63.3°F
Sep 9 63.2°F 65.6°F 63.8°F
Sep 10 62.8°F 64.0°F 63.6°F
Sep 11 62.9°F 64.0°F 64.2°F
Sep 12 62.7°F 63.6°F 65.3°F
Sep 13 62.4°F 63.5°F 66.0°F
Sep 14 62.4°F 63.1°F 64.8°F
Sep 15 61.9°F 62.6°F 64.7°F
Sep 16 61.6°F 63.1°F 64.4°F
Sep 17 61.5°F 63.4°F 63.9°F
Sep 18 61.4°F 64.3°F 63.2°F
Sep 19 61.1°F 65.1°F 63.2°F
Sep 20 60.6°F 64.1°F 63.2°F
Sep 21 60.5°F 65.3°F 62.8°F
Sep 22 60.4°F 65.7°F 63.4°F
Sep 23 59.9°F 64.7°F 63.5°F
Sep 24 59.6°F 64.6°F 63.1°F
Sep 25 59.5°F 64.8°F 62.9°F
Sep 26 58.9°F 64.2°F 61.6°F
Sep 27 58.8°F 63.4°F 61.8°F
Sep 28 58.3°F 62.8°F 60.7°F
Sep 29 58.0°F 62.9°F 61.2°F
Sep 30 57.7°F 62.0°F 61.4°F

Sea water temperature in Riga by month

In an average year, Riga offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Riga was recorded on July 17, 2021, reaching a 74.8°F. While the coldest temperature occurred on January 19, 2017, dipping to 32.0°F. The average readings by season are 35.9°F in Winter, 40.8°F in Spring, 64.4°F in Summer, and 53.3°F in Autumn. September's average temperature is a slight drop from August's average of 66.9°F. In October, the temperature is expected to decrease further, potentially averaging around 53.1°F.