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Senj in September

Find out everything about the water temperature in Senj 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:

66.1 °F

Average:

70.7 °F

Maximum:

77.2 °F

Sea water temperature in Senj in September

In the city of Senj, the month of September is somewhat comfortable for swimming. The minimum recorded temperature during this month was 66.1°F on September 30, 2018, with an average temperature being 70.7°F and a maximum temperature reaching 77.2°F on September 5, 2024.

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 70.7°F throughout the month, with minimal changes.
Date 10 years average 2025 2024
Sep 1 73.7°F 71.5°F 75.6°F
Sep 2 73.4°F 71.7°F 76.0°F
Sep 3 72.8°F 71.0°F 76.0°F
Sep 4 72.6°F 72.1°F 76.3°F
Sep 5 72.5°F 72.5°F 77.2°F
Sep 6 72.2°F 73.0°F 76.1°F
Sep 7 71.6°F 71.9°F 74.3°F
Sep 8 71.4°F 71.9°F 74.5°F
Sep 9 71.1°F 71.5°F 74.3°F
Sep 10 71.0°F 71.4°F 74.0°F
Sep 11 70.7°F 71.8°F 71.7°F
Sep 12 70.9°F 72.0°F 71.9°F
Sep 13 71.1°F 72.6°F 71.9°F
Sep 14 71.1°F 72.5°F 71.8°F
Sep 15 71.0°F 71.7°F 71.6°F
Sep 16 71.2°F 72.3°F 71.2°F
Sep 17 71.2°F 72.2°F 71.1°F
Sep 18 71.1°F 71.3°F 70.4°F
Sep 19 71.0°F 71.7°F 70.2°F
Sep 20 70.6°F 71.6°F 70.0°F
Sep 21 70.1°F 71.1°F 68.9°F
Sep 22 69.7°F 71.4°F 67.2°F
Sep 23 69.4°F 70.8°F 67.9°F
Sep 24 69.2°F 70.6°F 67.9°F
Sep 25 69.1°F 72.1°F 67.7°F
Sep 26 68.6°F 71.8°F 67.5°F
Sep 27 68.3°F 71.8°F 68.1°F
Sep 28 68.1°F 71.8°F 68.3°F
Sep 29 67.8°F 70.0°F 67.5°F
Sep 30 67.6°F 69.7°F 67.2°F

Sea water temperature in Senj by month

In Senj, the months July through August offer comfortable swimming conditions, which amounts to 64 swimming days. The warmest water in Senj was recorded on July 23, 2015, reaching a 82.4°F. While the coldest temperature occurred on March 8, 2025, dipping to 49.2°F. The average readings by season are 54.1°F in Winter, 56.4°F in Spring, 73.5°F in Summer, and 65.6°F in Autumn. September's average temperature is a slight drop from August's average of 75.3°F. In October, the temperature is expected to decrease further, potentially averaging around 65.2°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Cres 66.6°F 24mi
Rijeka 67.0°F 32mi
Rabac 65.9°F 37mi
Lovran 66.8°F 37mi
Mali Lošinj 68.1°F 38mi
Medulin 68.1°F 49mi
Kali 68.1°F 66mi

* current water temperature in this city

** straight line distance from Senj