Sea Temperature in Arklow in September

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

13°C

MINIMUN

15°C

AVERAGE

17°C

MAXIMUM

Historical Data of Water Temperature in September in Arklow

Water Temperature Chart for Irish Sea in Arklow in September

Sea Temperature Table in Arklow in September Over the Past Years

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

Arklow Climate and Swimming Opportunities in September

17°C

Average Day Air Temperature

10°C

Average Night Air Temperature

59 mm

Precipitation Amount per Month

14 days

Number of Rainy Days

13 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

16 km/h

Average Wind Speed

83%

Average
humidity

Arklow lies within the Leinster in Ireland. The average daytime temperature in Arklow in September is 17°C (63°F), while the nighttime average is 10°C (50°F). There are typically 14 rainy days during the month, with a total precipitation of 59 mm (2.3 inches). The daylight duration in September in Arklow is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 16 km/h (10 mph), and the humidity level is around 83%.

The water temperature in Arklow in September ranges from 14°C to 15°C (57°F to 59°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 15°C (59°F) in the last ten days. Overall, the average sea temperature in Arklow 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 Arklow

What is the sea temperature in Arklow in September?

The water temperature in the Irish Sea in Arklow in September ranges from 14°C to 15°C (57°F to 59°F).

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

The average sea temperature in Arklow 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.