Sea Temperature in Duncannon in September

Complete information on the sea temperature range in the Irish Sea in Duncannon in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Duncannon. 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 Duncannon in September

14°C

MINIMUN

16°C

AVERAGE

18°C

MAXIMUM

Historical Data of Water Temperature in September in Duncannon

Water Temperature Chart for Irish Sea in Duncannon in September

Sea Temperature Table in Duncannon in September Over the Past Years

Day	2024	2023	2022	Average
Sep 1	16°C	17°C	17°C	16.3°C
Sep 2	16°C	15°C	17°C	15.8°C
Sep 3	15°C	17°C	14°C	15.3°C
Sep 4	15°C	14°C	17°C	15.3°C
Sep 5	15°C	16°C	14°C	14.8°C
Sep 6	16°C	15°C	14°C	14.8°C
Sep 7	16°C	17°C	16°C	15.8°C
Sep 8	16°C	15°C	14°C	14.8°C
Sep 9	16°C	15°C	14°C	14.8°C
Sep 10	16°C	15°C	14°C	15.0°C
Sep 11	16°C	15°C	17°C	15.8°C
Sep 12	16°C	16°C	15°C	15.5°C
Sep 13	17°C	14°C	15°C	15.3°C
Sep 14	16°C	16°C	15°C	15.5°C
Sep 15	16°C	14°C	14°C	14.5°C
Sep 16	16°C	15°C	16°C	15.5°C
Sep 17	16°C	14°C	15°C	14.8°C
Sep 18	17°C	15°C	17°C	16.0°C
Sep 19	16°C	15°C	14°C	14.8°C
Sep 20	16°C	17°C	16°C	16.0°C
Sep 21	17°C	17°C	14°C	15.5°C
Sep 22	16°C	17°C	17°C	16.3°C
Sep 23	16°C	16°C	17°C	16.0°C
Sep 24	16°C	14°C	16°C	15.5°C
Sep 25	16°C	17°C	17°C	16.3°C
Sep 26	16°C	15°C	14°C	15.0°C
Sep 27	16°C	14°C	14°C	14.8°C
Sep 28	15°C	16°C	15°C	15.3°C
Sep 29	15°C	14°C	17°C	15.3°C

Duncannon Climate and Swimming Opportunities in September

17°C

Average Day Air Temperature

11°C

Average Night Air Temperature

80 mm

Precipitation Amount per Month

14 days

Number of Rainy Days

13 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

17 km/h

Average Wind Speed

86%

Average
humidity

Duncannon lies within the Leinster in Ireland. The average daytime temperature in Duncannon in September is 17°C (63°F), while the nighttime average is 11°C (51°F). There are typically 14 rainy days during the month, with a total precipitation of 80 mm (3.2 inches). The daylight duration in September in Duncannon is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 17 km/h (11 mph), and the humidity level is around 86%.

The water temperature in Duncannon in September ranges from 14°C to 16°C (57°F to 61°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 15°C (59°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Duncannon for September is 15°C (59°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in September in Nearby Cities

Frequently Asked Questions About Water Temperatures in September in Duncannon

What is the sea temperature in Duncannon in September?

The water temperature in the Irish Sea in Duncannon in September ranges from 14°C to 16°C (57°F to 61°F).

Is it possible to swim in the Irish Sea in Duncannon in September?

The average sea temperature in Duncannon in September is 15°C (59°F), and the air temperature is 17°C (63°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.