Best time to go

Cardiff in January 2027: weather, temperatures and activities

Do you want to visit Cardiff 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 Cardiff, Wales.

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Is it worth visiting Cardiff in January?

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

Page summary

Cardiff in January in summary
Very bad weather
Min 5°C Max 8°C 67 mm 4 day(s) 89% 58% 11°C 5.6 h/day 1.2 cm
Best activities in January
Cultural visits and heritageGastronomy
Practical guidelines
Low crowds Low price 08:11 16:33
Hourly weather

Average weather in Cardiff in January 2027

Very bad weather

The weather in Cardiff 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 Cardiff in January

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

Temperatures and rain in Cardiff 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 Cardiff in January

Seasonal normals

Seasonal normals of Cardiff in January

Check the seasonal normals in Cardiff 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 7.5°C 6.2°C 6.3°C
Maximum temperature 8.9°C 7.8°C 8.1°C
Minimum temperature 6.1°C 4.6°C 4.5°C
Record maximum temperature 14.0°C
(2015)
13.0°C
(2015)
15.0°C
(2019)
Record low temperature -7.0°C
(2010)
-5.0°C
(2010)
-5.0°C
(2012)
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° 2 day(s)
(6%)
4 day(s)
(13%)
3 day(s)
(10%)
Sea temperature
Sea temperature (average) 11.5°C 9.1°C 9.0°C
Sea temperature (minimum) 10.2°C 7.7°C 7.6°C
Sea temperature (maximum) 12.9°C 11.0°C 10.2°C
Wind
Wind speed 26 km/h 26 km/h 28 km/h
Wind temperature 2.6°C 0.8°C 0.6°C
Precipitation (rain)
Precipitation 75.2 mm 67.0 mm 54.0 mm
Number of days with precipitation 18 day(s)
(58%)
17 day(s)
(55%)
14 day(s)
(48%)
Number of days with significant precipitation (greater than 5 mm) 6 day(s)
(18%)
4 day(s)
(14%)
4 day(s)
(14%)
Record precipitation in one day 29.5 mm
(2012)
23.5 mm
(2012)
17.5 mm
(2020)
Other weather data
Humidity 89% 89% 88%
Visibility 9.1 km 9.0 km 9.1 km
Cloud cover 58% 58% 58%
UV index 2 2 2
Daily sunshine 6h 6h 6h
Sunrise and sunset
Sunrise time 08h12 08h11 07h26
Sunset time 16h04 16h33 17h28
Day length 7h52 8h22 10h02
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 Cardiff in January?

Best activities in January
Cultural visits and heritageGastronomy
Possible activities in January
Family and attractionsNightlife
Activities not recommended in January
Beach and swimmingNature and landscapesBoat trip and cruise
Prices monitored continuously

The best offers right now to Cardiff

Each map is a real return flight offered from London, with its dates, airline and price. Choose one to find it on Skyscanner, or start your own search just below.

The cheapest

London Cardiff

From 1 Jan to 17 Jan 2027

£104 per person
16 days on site With stopover(s) Ryanair
The cheapest

London Cardiff

From 7 Jan to 21 Jan 2027

£178 per person
14 days on site With stopover(s) Aer Lingus
The cheapest

London Cardiff

From 16 Jan to 23 Jan 2027

£233 per person
7 days on site With stopover(s) EasyJet
The cheapest

London Cardiff

From 10 Jan to 16 Jan 2027

£251 per person
6 days on site With stopover(s) Aer Lingus
The cheapest

London Cardiff

From 18 Jan to 31 Jan 2027

£251 per person
13 days on site With stopover(s) KLM
Searching for the best deals…

Round-trip prices per person, recently collected from Skyscanner. Each offer has its own collection date and fares change constantly: the price displayed on Skyscanner is authoritative.

Observed weather

What was the weather like in Cardiff in January last?

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

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Moderate rain
5°C11°C5.4 mm
2
Clear/Sunny
1°C4°C0.0 mm
3
Clear/Sunny
1°C4°C0.0 mm
4
Light snow
1°C4°C5.3 mm6.4 cm
5
Patchy rain nearby
1°C10°C5.8 mm
6
Partly Cloudy
4°C6°C0.2 mm
7
Overcast
1°C3°C0.0 mm
8
Patchy rain nearby
1°C2°C0.0 mm
9
Clear/Sunny
-1°C4°C0.0 mm
10
Light sleet
2°C3°C7.3 mm1.3 cm
11
Light drizzle
2°C3°C2.3 mm
12
Partly Cloudy
3°C7°C0.0 mm
13
Partly Cloudy
3°C7°C0.0 mm
14
Cloudy
6°C9°C0.0 mm
15
Clear/Sunny
7°C10°C0.0 mm
16
Clear/Sunny
5°C8°C0.0 mm
17
Clear/Sunny
4°C8°C0.0 mm
18
Clear/Sunny
2°C6°C0.0 mm
19
Partly Cloudy
1°C6°C0.0 mm
20
Overcast
4°C7°C0.0 mm
21
Patchy rain nearby
2°C5°C0.0 mm
22
Patchy rain nearby
5°C7°C1.0 mm
23
Patchy rain nearby
5°C8°C1.1 mm
24
Partly Cloudy
7°C10°C3.7 mm
25
Clear/Sunny
3°C6°C0.0 mm
26
Light rain
4°C8°C6.1 mm
27
Patchy rain nearby
5°C8°C1.9 mm
28
Patchy rain nearby
6°C9°C0.8 mm
29
Overcast
5°C7°C0.4 mm
30
Clear/Sunny
3°C7°C0.0 mm
31
Partly Cloudy
6°C9°C1.6 mm
Nearby

Where to go near Cardiff in January?

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

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Every month

Best time to visit Cardiff month by month

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

Frequently asked questions

Travel to to Cardiff 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 Cardiff in January, which places this month 10th out of 12. A trip is still possible, but plan a flexible itinerary.

Expect an average of 8°C during the day and 5°C at night, with about 67 mm of precipitation spread over 4 rainy days.

The sea is only 9°C on average in January. Swimming is still possible, but it will be cool.

Expect about 5.6 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Cultural visits and heritage and Gastronomy. These are the ones for which the conditions on site are most favourable.

No: this month is in Low crowds, with a visitor index of 11/100. It is one of the quietest periods of the year.

No: rates are at level Low price, with a price index of 36/100. It’s one of the most budget-friendly months.

If your dates are flexible, the most favorable months in Cardiff are: June, July, August and September. Compare them before finalizing your departure.
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Temperatures are shown in degrees Celsius and precipitation in millimetres. Based on your country of connection, °F and inches may be more familiar to you.