Best time to visit Cardiff

United Kingdom · Europe

All twelve months scored on daily temperature, rainfall, humidity and holiday crowding.

The year in Cardiff

Tap a month for its page

Sweet spot
Good
OK
Avoid
Busy

Go in Apr–Sep — these months score within a whisker of each other; 17C max, 10 rainy days. Oct is the next best.

Plan this trip

Each site opens on its own search: choose your dates there. A few open on their home page, where you type the place too.

Links marked Ad pay us a commission if you book, at no extra cost to you; most pay nothing, and what a site pays never decides whether it is listed or where. How we rank

Flights

Choose where you fly from

Where to stay

Things to do

Car hire

Rent direct

Travel insurance

SafetyWing Ad

Mobile data (eSIM)

Each opens in a new tab, on the site's own pages.

Things to do in Cardiff

Cardiff Castle Castle St. Cardiff Castle is a large castle whose foundations are based upon a Roman fort.
Castell Coch A fairytale castle nestled on a hill overlooking the main gateway into the valleys from…
The Welsh Parliament or Senedd Cymru Cardiff Bay. The seat of Wales' national government and was opened on St David's Day…
The Wales Millennium Centre An outstanding piece of modern architecture, opened in 2004 by Queen Elizabeth II…
National Museum Cardiff An excellent collection of artworks and natural history exhibits.
St Fagans National History Museum Known universally as St Fagans (pronounced "FAG-uns") after the village it's in…
Pierhead building Sits between the ultra modern Millennium centre and Senedd as a strong contrast and link…

Tours and tickets in Cardiff

Each site opens on its own search: choose your dates there. A few open on their home page, where you type the place too. Links marked Ad pay us a commission if you book, at no extra cost to you; most pay nothing, and what a site pays never decides whether it is listed or where. How we rank

Sights and their lines from Wikivoyage (Cardiff), licensed CC BY-SA 4.0; in order of how often each one's Wikipedia article was read on phones in the last 12 months.

Month by month

No fare history for this route yet, so this ranking is climate and crowds only — the price column will fill in as the scanner collects.

Month	Max °C	Rain days	Humidity	Sun h/day	Verdict	Why
Jan	8°	12d	88%	4.1h	avoid	8C max, 12 rainy days
Feb	9°	13d	85%	5.2h	avoid	9C max, 13 rainy days
Mar	11°	13d	81%	7.0h	ok	11C max, 13 rainy days
Apr	14°	9d	75%	9.8h	sweet spot	14C max, 9 rainy days
May	17°	10d	75%	11.5h	sweet spot	17C max, 10 rainy days
Jun	20°	10d	76%	11.9h	sweet spot busy	busier than usual
Jul	22°	10d	75%	12.0h	sweet spot busy	busier than usual
Aug	21°	11d	78%	10.5h	sweet spot busy	busier than usual
Sep	18°	12d	82%	8.5h	sweet spot	18C max, 12 rainy days
Oct	15°	14d	85%	6.2h	ok	15C max, 14 rainy days
Nov	11°	14d	87%	4.4h	avoid	11C max, 14 rainy days
Dec	9°	15d	88%	3.4h	avoid	9C max, 15 rainy days

Rain days are the days with at least 1 mm of rain, as a weather station counts them.

Weather read at the centre, 15 km from the airport (CWL): ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.

A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. It is flagged rather than scored down, and crowds alone never make a month “avoid”: that is reserved for weather worth skipping.

How busy it gets

Busiest from June to August; quietest in January and October.

Then and now

Cardiff's February days now average 9.3°C, 2.6°C warmer than in 1981–1990. 10 of 12 months are clearly warmer.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1981–90	7.0°	6.7°	9.1°	11.5°	15.0°	17.3°	19.9°	19.1°	16.9°	13.6°	9.7°	8.0°
2017–26	8.0°	9.3°	11.0°	13.8°	17.1°	19.8°	21.7°	20.9°	18.4°	14.9°	11.2°	9.1°
Change	+1.0°	+2.6°	+1.9°	+2.3°	+2.1°	+2.5°	+1.8°	+1.8°	+1.5°	+1.3°	+1.5°	+1.2°

The average daily high, month by month, for the nearest ERA5 grid cell. Bold is a clear change; grey is within the ordinary spread between years. Every destination, ranked.

Getting there

Fly into LON, then drive: about 241 km, 3h 01m by road. The flights under Where to book are to LON.

LON	241 km, about 3h 01m driving
Cardiff (CWL)	the drive is not measured yet

The drive from each airport is the road's, from openrouteservice.org by HeiGIT: typical, not a schedule.

How far Cardiff is, and what it costs, depends on where you set off from — the months above do not.

Before you go

Type G plugs at 230 V. Drives on the left. The currency is the Pound sterling. Everything for United Kingdom: cost of living, languages, emergency numbers and health.

Being there

On arrival

Paying — Contactless cards and phones work almost everywhere, and some places no longer take cash. Small shops and pubs may set a card minimum of about £5.
UPI, for visitors from India — Not accepted for paying here; bring a card that works abroad.
Tipping — 10 to 15% in restaurants for good service, unless a service charge is already on the bill. Rounding up a taxi fare is usual but not expected.

Getting around Cardiff

Apps — Rides: Bolt, FreeNow, Uber. Maps: Google Maps, Apple Maps. Messages: WhatsApp.

Cardiff is a large city with two reasonably compact central areas - the city centre and Cardiff Bay. More on Wikivoyage

From the Wikivoyage article on Cardiff, written by travellers and licensed CC BY-SA 4.0.

Help

Emergency — 999 or 112 (any emergency).
TravelCharika is not an emergency service: we cannot call for help or send anyone. Numbers can change; if one fails, ask someone local or your hotel.

Put together by hand from the sources listed, checked 7 October 2026. Apps, cards and rules change, so check before you rely on one.

Sources (48)

Cardiff in pictures

Cardiff MMB 10 — i

mattbuck (category), CC BY-SA 3.0, via Wikimedia Commons

Cardiff MMB 11 — i

mattbuck (category), CC BY-SA 3.0, via Wikimedia Commons

20140211 Cardiff City v Aston Villa, Cardiff City Stadium, Cardiff, Wales (0) — i

Jon Candy, CC BY-SA 2.0, via Wikimedia Commons

Cardiff City Stadium front — i

joncandy/Jon Candy profile at Flickr website, CC BY-SA 2.0, via Wikimedia Commons

What Cardiff is like

Cardiff (Welsh: Caerdydd) is the capital and largest city of Wales. It used to be an industrial city, but is now a lively and modern capital city and a tourism hot spot. The city is friendly to pedestrians, and summer is by far the best time to visit, with large festivals, and outdoor dining and drinking. More on Wikivoyage

Worth seeing: Cardiff Castle (Welsh: Castell Caerdydd). Last entry one hour before closing time. Castle St. Cardiff Castle is a large castle whose foundations are based upon a Roman fort. More on Wikivoyage
Worth doing: Relax in Bute Park or in the grounds of the castle, for a break from the hustle of the city centre. Visit Cardiff Bay a truly cosmopolitan experience full of restaurants, bars and cafes. More on Wikivoyage
Getting in: Cardiff Airport (CWL IATA) is the city's only airport, which lies just west of Barry in the Vale of Glamorgan. Airlines which fly into Cardiff include KLM, Ryanair and TUI. More on Wikivoyage
Staying safe: Cardiff is quite a safe city, and certainly safer than most other major cities in the UK, with the centre having less overall crime than much smaller cities like Gloucester, Northampton and Derby… More on Wikivoyage

From the Wikivoyage article on Cardiff, written by travellers and licensed CC BY-SA 4.0; the full article has far more. The numbers above are measured; this is experience.

Around Cardiff

Also in United Kingdom

Nearby

Kind of place

Cities

Cardiff is in United Kingdom, Europe. Distances are great-circle, so a short one can still be a long way round.

Links marked Ad pay us a commission if you book through one, at no extra cost to you. That does not affect the scores on this page, which are computed from climate and fare data before any link is built.