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Arklow in January 2027: weather, temperatures and activities

Do you want to visit Arklow in January 2027? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether January is a good month to travel to Arklow, Ireland.

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Is it worth visiting Arklow in January?

Check your ideal travel criteria and see if the month of January suits your plans to go to Arklow.
What matters most?
Arklow in January 2027: weather, temperatures and activities

Page summary

Arklow in January in summary
Very bad weather
Min 6°C Max 8°C 68 mm 4 day(s) 86% 56% 11°C 5.8 h/day 2.2 cm
Activities not recommended in January
Beach and swimmingNature and landscapesBoat trip and cruise
Practical guidelines
Low crowds 08:29 16:39
Hourly weather

Average weather in Arklow in January 2027

Very bad weather

The weather in Arklow in January 2027 is based on statistical data from previous years in January. This allows you to forecast the weather in January 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Arklow in January

Temperatures, precipitation, snow and monthly trends help better understand the climate in Arklow in January.

Temperatures and rain in Arklow in January

Average daily weather

Temperatures, rain and snow day by day in January, with a separate scale for snow.
Minimal Average Maximums Average rainfall Daily snow

Monthly temperatures

The month of January is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Arklow in January

Seasonal normals

Seasonal normals of Arklow in January

Check the seasonal normals in Arklow in January and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
January
Weather data December January February
Outside temperature
Average temperature 7.6°C 6.8°C 6.7°C
Maximum temperature 8.9°C 8.0°C 8.0°C
Minimum temperature 6.4°C 5.5°C 5.4°C
Record maximum temperature 14.0°C
(2015)
13.0°C
(2015)
14.0°C
(2012)
Record low temperature -6.0°C
(2010)
-2.0°C
(2011)
-6.0°C
(2021)
Number of days at +30° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days at +18° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Number of days below 0° 1 day(s)
(3%)
1 day(s)
(3%)
0 day(s)
(0%)
Sea temperature
Sea temperature (average) 11.2°C 9.7°C 8.9°C
Sea temperature (minimum) 9.8°C 8.0°C 7.7°C
Sea temperature (maximum) 12.6°C 11.3°C 9.9°C
Wind
Wind speed 32 km/h 32 km/h 32 km/h
Wind temperature 2.5°C 1.4°C 1.1°C
Precipitation (rain)
Precipitation 72.5 mm 67.7 mm 60.1 mm
Number of days with precipitation 17 day(s)
(55%)
16 day(s)
(52%)
16 day(s)
(55%)
Number of days with significant precipitation (greater than 5 mm) 5 day(s)
(16%)
4 day(s)
(13%)
4 day(s)
(13%)
Record precipitation in one day 29.5 mm
(2015)
30.5 mm
(2021)
24.7 mm
(2013)
Other weather data
Humidity 87% 86% 86%
Visibility 9.2 km 9.2 km 8.9 km
Cloud cover 55% 56% 58%
UV index 3 2 2
Daily sunshine 6h 6h 6h
Sunrise and sunset
Sunrise time 08h30 08h29 07h41
Sunset time 16h09 16h39 17h37
Day length 7h39 8h10 9h56
Our opinion on the climate in January
The review of Where And When adverse weather very bad weather very bad weather
Activities and events

What to do in Arklow in January?

Activities not recommended in January
Beach and swimmingNature and landscapesBoat trip and cruise
Observed weather

What was the weather like in Arklow in January last?

Find the observed weather calendar in Arklow in January 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Overcast
4°C10°C7.5 mm
2
Clear/Sunny
0°C4°C0.0 mm
3
Clear/Sunny
0°C4°C0.0 mm
4
Light drizzle
3°C5°C7.6 mm17.7 cm
5
Light drizzle
3°C5°C5.3 mm0.4 cm
6
Partly Cloudy
2°C3°C0.4 mm0.1 cm
7
Clear/Sunny
1°C3°C0.9 mm
8
Patchy rain nearby
0°C4°C0.1 mm
9
Clear/Sunny
-1°C3°C0.0 mm
10
Light sleet
4°C6°C5.5 mm
11
Patchy rain nearby
5°C8°C1.9 mm
12
Clear/Sunny
5°C9°C0.0 mm
13
Overcast
10°C10°C0.3 mm
14
Patchy rain nearby
10°C11°C0.0 mm
15
Clear/Sunny
8°C10°C0.0 mm
16
Clear/Sunny
8°C10°C0.0 mm
17
Patchy rain nearby
8°C10°C0.0 mm
18
Patchy rain nearby
9°C10°C0.0 mm
19
Patchy rain nearby
8°C10°C0.2 mm
20
Light drizzle
9°C10°C0.2 mm
21
Overcast
7°C8°C0.0 mm
22
Clear/Sunny
3°C7°C0.0 mm
23
Patchy rain nearby
6°C8°C0.5 mm
24
Clear/Sunny
6°C11°C4.8 mm
25
Cloudy
1°C6°C1.5 mm
26
Moderate or heavy rain in area with thunder
7°C8°C2.1 mm
27
Light drizzle
6°C9°C2.1 mm
28
Patchy rain nearby
6°C7°C0.1 mm
29
Cloudy
3°C7°C0.0 mm
30
Overcast
1°C8°C0.7 mm
31
Clear/Sunny
3°C9°C0.5 mm
Nearby

Where to go near Arklow in January?

Compare cities and destinations near Arklow in January to find another travel stop, a nearby alternative or a logical continuation of your stay in Arklow.

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Every month

Best time to visit Arklow month by month

Compare the weather in Arklow across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Arklow in January: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Not really. The weather conditions are unfavorable in Arklow in January, which places this month 11th out of 12. A trip is still possible, but plan a flexible itinerary.

Expect an average of 8°C during the day and 6°C at night, with about 68 mm of precipitation spread over 4 rainy days.

The sea is only 10°C on average in January. Swimming is still possible, but it will be cool.

Expect about 5.8 hours of sunshine per day on average for this month.

No: this month is in Low crowds, with a visitor index of 20/100. It is one of the quietest periods of the year.

If your dates are flexible, the most favorable months in Arklow are: July, August and September. Compare them before finalizing your departure.
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