Sea Temperature in Arklow in January

Complete information on the sea temperature range in the Irish Sea in Arklow in January. Historical daily data. Climate details for January. 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 January

7°C

MINIMUN

9°C

AVERAGE

11°C

MAXIMUM

Historical Data of Water Temperature in January in Arklow

Water Temperature Chart for Irish Sea in Arklow in January

Sea Temperature Table in Arklow in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	10°C	11°C	8°C	9.8°C
Jan 2	10°C	11°C	8°C	9.8°C
Jan 3	10°C	11°C	8°C	9.8°C
Jan 4	9°C	11°C	8°C	9.5°C
Jan 5	9°C	10°C	9°C	9.5°C
Jan 6	9°C	11°C	9°C	9.5°C
Jan 7	9°C	11°C	8°C	9.3°C
Jan 8	9°C	10°C	10°C	9.5°C
Jan 9	9°C	10°C	10°C	9.5°C
Jan 10	9°C	9°C	9°C	9.0°C
Jan 11	8°C	9°C	11°C	9.3°C
Jan 12	9°C	9°C	9°C	8.8°C
Jan 13	9°C	9°C	8°C	8.5°C
Jan 14	9°C	9°C	10°C	9.0°C
Jan 15	9°C	10°C	8°C	8.8°C
Jan 16	9°C	10°C	8°C	8.8°C
Jan 17	9°C	9°C	11°C	9.3°C
Jan 18	9°C	9°C	8°C	8.5°C
Jan 19	9°C	9°C	11°C	9.3°C
Jan 20	9°C	9°C	9°C	8.8°C
Jan 21	8°C	9°C	11°C	9.3°C
Jan 22	8°C	9°C	11°C	9.3°C
Jan 23	8°C	9°C	11°C	9.3°C
Jan 24	8°C	9°C	9°C	8.8°C
Jan 25	8°C	9°C	11°C	9.3°C
Jan 26	8°C	9°C	9°C	8.5°C
Jan 27	8°C	9°C	8°C	8.3°C
Jan 28	8°C	9°C	8°C	8.3°C
Jan 29	8°C	9°C	10°C	8.8°C
Jan 30	8°C	9°C	10°C	8.8°C

Arklow Climate and Swimming Opportunities in January

9°C

Average Day Air Temperature

3°C

Average Night Air Temperature

63 mm

Precipitation Amount per Month

18 days

Number of Rainy Days

8 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

21 km/h

Average Wind Speed

86%

Average
humidity

Arklow lies within the Leinster in Ireland. The average daytime temperature in Arklow in January is 9°C (48°F), while the nighttime average is 3°C (37°F). There are typically 18 rainy days during the month, with a total precipitation of 63 mm (2.5 inches). The daylight duration in January in Arklow is 8 hours, with an average of 2 hours of sunshine per day. The average wind speed in January is 21 km/h (13 mph), and the humidity level is around 86%.

The water temperature in Arklow in January ranges from 8°C to 10°C (46°F to 50°F). At the beginning of the month, the average temperature is around 10°C (50°F), shifting to 9°C (48°F) by mid-January and reaching 9°C (48°F) in the last ten days. Overall, the average sea temperature in Arklow for January is 9°C (48°F). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Arklow

What is the sea temperature in Arklow in January?

The water temperature in the Irish Sea in Arklow in January ranges from 8°C to 10°C (46°F to 50°F).

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

The average sea temperature in Arklow in January is 9°C (48°F), and the air temperature is 9°C (48°F), so still too cold for most swimmers. Only short dips in proper gear are advisable.