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Sea Temperature in Piran in December
Complete information on the sea temperature range in the Adriatic Sea in Piran in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Piran. 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 Piran in December
10°C
MINIMUN
13°C
AVERAGE
16°C
MAXIMUM
Historical Data of Water Temperature in December in Piran
Water Temperature Chart for Adriatic Sea in Piran in December
Sea Temperature Table in Piran in December Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Dec 1 | 16°C | 16°C | 16°C | 15.8°C |
Dec 2 | 15°C | 16°C | 16°C | 15.5°C |
Dec 3 | 15°C | 15°C | 15°C | 15.0°C |
Dec 4 | 15°C | 16°C | 15°C | 15.3°C |
Dec 5 | 15°C | 15°C | 16°C | 15.0°C |
Dec 6 | 15°C | 15°C | 15°C | 14.8°C |
Dec 7 | 15°C | 15°C | 15°C | 14.8°C |
Dec 8 | 15°C | 15°C | 15°C | 15.0°C |
Dec 9 | 14°C | 15°C | 15°C | 14.8°C |
Dec 10 | 15°C | 14°C | 15°C | 14.5°C |
Dec 11 | 15°C | 14°C | 15°C | 14.3°C |
Dec 12 | 14°C | 14°C | 15°C | 14.0°C |
Dec 13 | 14°C | 14°C | 15°C | 14.0°C |
Dec 14 | 14°C | 14°C | 14°C | 13.8°C |
Dec 15 | 13°C | 13°C | 15°C | 13.5°C |
Dec 16 | 13°C | 14°C | 14°C | 13.5°C |
Dec 17 | 13°C | 14°C | 14°C | 13.5°C |
Dec 18 | 13°C | 13°C | 14°C | 13.3°C |
Dec 19 | 13°C | 13°C | 14°C | 13.0°C |
Dec 20 | 13°C | 13°C | 14°C | 13.0°C |
Dec 21 | 13°C | 13°C | 14°C | 13.0°C |
Dec 22 | 13°C | 13°C | 13°C | 12.8°C |
Dec 23 | 13°C | 13°C | 13°C | 12.8°C |
Dec 24 | 13°C | 13°C | 13°C | 12.8°C |
Dec 25 | 13°C | 13°C | 13°C | 12.8°C |
Dec 26 | 12°C | 13°C | 13°C | 12.5°C |
Dec 27 | 12°C | 13°C | 13°C | 12.5°C |
Dec 28 | 12°C | 13°C | 12°C | 12.0°C |
Dec 29 | 12°C | 13°C | 12°C | 12.3°C |
Dec 30 | 11°C | 13°C | 12°C | 11.8°C |



Piran Climate and Swimming Opportunities in December
8°C
Average Day Air Temperature
4°C
Average Night Air Temperature
92 mm
Precipitation Amount per Month
9 days
Number of Rainy Days
9 hrs
Daylight
per Day
3 hrs
Sunshine
per Day
9 km/h
Average Wind Speed
72%
Average
humidity
Piran lies within the Municipality of Piran in Slovenia. The average daytime temperature in Piran in December is 8°C (46°F), while the nighttime average is 4°C (38°F). There are typically nine rainy days during the month, with a total precipitation of 92 mm (3.6 inches). The daylight duration in December in Piran is 9 hours, with an average of 3 hours of sunshine per day. The average wind speed in December is 9 km/h (6 mph), and the humidity level is around 72%.
The water temperature in Piran in December ranges from 11°C to 15°C (52°F to 59°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 14°C (57°F) by mid-December and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Piran for December is 14°C (57°F). The water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.
Sea Temperature in December in Nearby Cities
Frequently Asked Questions About Water Temperatures in December in Piran
What is the sea temperature in Piran in December?
The water temperature in the Adriatic Sea in Piran in December ranges from 11°C to 15°C (52°F to 59°F).
Is it possible to swim in the Adriatic Sea in Piran in December?
The average sea temperature in Piran in December is 14°C (57°F), and the air temperature is 8°C (46°F), so the water is still cold, but for short swims, it can be manageable. Warm clothes are necessary after swimming.