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Sea Temperature in Opatija in September
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Complete information on the sea temperature range in the Adriatic Sea in Opatija in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Opatija. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Opatija in September
19°C
MINIMUN
23°C
AVERAGE
27°C
MAXIMUM
Historical Data of Water Temperature in September in Opatija
Water Temperature Chart for Adriatic Sea in Opatija in September
Sea Temperature Table in Opatija in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 23°C | 25°C | 24°C | 24.5°C |
| Sep 2 | 24°C | 25°C | 23°C | 24.5°C |
| Sep 3 | 23°C | 25°C | 23°C | 24.3°C |
| Sep 4 | 24°C | 25°C | 23°C | 24.5°C |
| Sep 5 | 23°C | 24°C | 22°C | 23.8°C |
| Sep 6 | 23°C | 25°C | 22°C | 24.0°C |
| Sep 7 | 23°C | 25°C | 22°C | 24.0°C |
| Sep 8 | 22°C | 24°C | 22°C | 23.5°C |
| Sep 9 | 23°C | 24°C | 22°C | 23.8°C |
| Sep 10 | 23°C | 24°C | 22°C | 23.5°C |
| Sep 11 | 23°C | 24°C | 22°C | 23.5°C |
| Sep 12 | 23°C | 25°C | 22°C | 23.5°C |
| Sep 13 | 23°C | 24°C | 22°C | 23.3°C |
| Sep 14 | 22°C | 24°C | 21°C | 22.8°C |
| Sep 15 | 23°C | 24°C | 22°C | 23.3°C |
| Sep 16 | 23°C | 25°C | 21°C | 23.0°C |
| Sep 17 | 23°C | 24°C | 22°C | 22.8°C |
| Sep 18 | 23°C | 24°C | 21°C | 22.5°C |
| Sep 19 | 23°C | 24°C | 21°C | 22.5°C |
| Sep 20 | 23°C | 24°C | 21°C | 22.3°C |
| Sep 21 | 22°C | 24°C | 21°C | 22.3°C |
| Sep 22 | 22°C | 23°C | 20°C | 21.5°C |
| Sep 23 | 22°C | 24°C | 20°C | 21.8°C |
| Sep 24 | 22°C | 24°C | 20°C | 21.5°C |
| Sep 25 | 22°C | 24°C | 20°C | 21.8°C |
| Sep 26 | 22°C | 23°C | 20°C | 21.3°C |
| Sep 27 | 21°C | 23°C | 20°C | 21.0°C |
| Sep 28 | 23°C | 23°C | 20°C | 21.8°C |
| Sep 29 | 22°C | 22°C | 20°C | 21.3°C |
Opatija Climate and Swimming Opportunities in September
24°C
Average Day Air Temperature
14°C
Average Night Air Temperature
152 mm
Precipitation Amount per Month
10 days
Number of Rainy Days
12 hrs
Daylight
per Day
6 hrs
Sunshine
per Day
10 km/h
Average Wind Speed
80%
Average
humidity
Opatija lies within the Primorje-Gorski Kotar County in Croatia. The average daytime temperature in Opatija in September is 24°C (75°F), while the nighttime average is 14°C (57°F). There are typically 10 rainy days during the month, with a total precipitation of 152 mm (6.0 inches). The daylight duration in September in Opatija is 12 hours, with an average of 6 hours of sunshine per day. The average wind speed in September is 10 km/h (6 mph), and the humidity level is around 80%.
The water temperature in Opatija in September ranges from 21°C to 24°C (70°F to 75°F). At the beginning of the month, the average temperature is around 24°C (75°F), shifting to 23°C (73°F) by mid-September and reaching 22°C (72°F) in the last ten days. Overall, the average sea temperature in Opatija for September is 23°C (73°F). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Opatija
What is the sea temperature in Opatija in September?
The water temperature in the Adriatic Sea in Opatija in September ranges from 21°C to 24°C (70°F to 75°F).
Is it possible to swim in the Adriatic Sea in Opatija in September?
The average sea temperature in Opatija in September is 23°C (73°F), and the air temperature is 24°C (75°F), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.