United Kingdom · Wales

Cardiff, United Kingdom travel notes.

Follow the arcades from the castle, then make time for the bay.

Culture, weather and everyday essentials for Cardiff.

Photo: grahamwell / Graham profile at Flickr website · CC BY-SA 2.0 / original · Cropped and faded for display

THE EVERYDAY, BEFORE YOU GO

Weather & time in Cardiff

A little context for when you arrive.

Weather now

…Loading current weather

Current conditions are a weather-model estimate, not a station observation.

Right now in Cardiff

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Europe/LondonLocal time · daylight saving applied where relevant

The year, at a glance.

When to go, season by season. These suggestions weigh long-term weather for general sightseeing; beaches, snow sports and festivals may suit different months. Check local forecasts and holiday dates before booking.

Spring

MAR – MAY

Avg low-2.2°C

Mean8.9°C

Avg high20.5°C

19.3 cmAverage precipitation / season

Comfortable sightseeing option

Go for: Walking between neighborhoods, gardens and landmark visits, with weather-appropriate layers.

Avoid if: You need guaranteed dry or stable weather; seasonal averages hide rainy days and temperature swings. A candidate for parks and arcades; keep a waterproof layer ready.

Seasonal advice sources

Editorial planning guidance based on long-term climate, rather than a forecast or guarantee.

NASA POWER climate for Cardiff · Official destination planning guide

Summer

JUN – AUG

Avg low7.2°C

Mean15.8°C

Avg high29.1°C

23.6 cmAverage precipitation / season

Best climate balance

Go for: A balanced season for general sightseeing in Cardiff. Walking between neighborhoods, gardens and landmark visits, with weather-appropriate layers.

Avoid if: You need guaranteed dry or stable weather; seasonal averages hide rainy days and temperature swings. Longer daylight suits the bay and park walks; events can raise demand.

Seasonal advice sources

Editorial planning guidance based on long-term climate, rather than a forecast or guarantee.

NASA POWER climate for Cardiff · Official destination planning guide

Autumn

SEP – NOV

Avg low0.7°C

Mean11.3°C

Avg high21.9°C

26.6 cmAverage precipitation / season

Comfortable sightseeing option

Go for: Walking between neighborhoods, gardens and landmark visits, with weather-appropriate layers.

Avoid if: You need guaranteed dry or stable weather; seasonal averages hide rainy days and temperature swings. Combine museums with short outdoor walks and flexible rain plans.

Seasonal advice sources

Editorial planning guidance based on long-term climate, rather than a forecast or guarantee.

NASA POWER climate for Cardiff · Official destination planning guide

Winter

DEC – FEB

Avg low-5.7°C

Mean5.3°C

Avg high13.4°C

27.2 cmAverage precipitation / season

Cold-weather city break

Go for: Museums, galleries and shorter outdoor stops, with warm layers and an indoor backup.

Avoid if: You want reliably warm outdoor days. Average daily highs are about 13°C. Use indoor cultural stops and check holiday opening times.

Seasonal advice sources

Editorial planning guidance based on long-term climate, rather than a forecast or guarantee.

NASA POWER climate for Cardiff · Official destination planning guide

SIX SIGNALS TO HELP YOU PREPARE

Travel Signals

Inclusion Index

Not yet scored

Comparable evidence is not yet available to score all three inclusion lenses.

Ethnic & racial harassmentNot yet scored

Not yet scored; missing evidence does not mean low risk.

Antisemitic harassment & crimesNot yet scored

Not yet scored; missing evidence does not mean low risk.

Anti-LGBTQ+ harassment & crimesNot yet scored

Not yet scored; missing evidence does not mean low risk.

Theft & pickpocket safety

National context: Guidance describes common theft and highlights mobile-phone snatching in London.

Violent crime safety

National context: Mugging, knife crime and assaults are reported, particularly in larger cities.

Water & sanitation

Basic sanitation coverage 99.1% (2024); basic drinking-water coverage 100.0% (2024).

English accessibility

Not yet scored

Plan to use English for day-to-day travel, and keep key addresses saved for offline use.

Credit-card acceptance

Cards and digital wallets are widely used; some small traders require cash or a minimum spend.

MAKE TIME TO EXPLORE

Choose hands-on science exhibits for an indoor family outing.

Learn more

ARRIVE WITH A LITTLE CONTEXT

Airports in and around Cardiff

CWL

Cardiff Airport

Commercial passenger airport

Address

Main Terminal Building, Rhoose, Vale of Glamorgan CF62 3BD, Wales, United Kingdom

Airport website

KEEP THE ESSENTIALS CLOSE

Emergency info

Local emergency services

Police, ambulance & fire999

U.S. embassy & consular help

U.S. Embassy London

33 Nine Elms Lane, London SW11 7US, United Kingdom

+44-20-7499-9000

After hours: +44-20-7499-9000

Official U.S. assistance & emergency contacts

PACK FOR YOUR NEXT CHAPTER

Packing planner

A little less guesswork in your suitcase.

Choose your dates for typical weather, a packing checklist and a luggage-size guide.

Sources & evidence

Inclusion Index
Lowest available lens band; not an average, prevalence estimate or validated index
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. National and localized evidence · see each lens
Full source notes, scope & evidence →
Theft & pickpocket safety
Advisory wording → editorial precaution band
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. National advisory context; not a city incidence estimate
- Government of Canada: United Kingdom travel advice · Guidance retrieved 19 Oct 2026; page date 26 May 2026 12:50 ET
Full source notes, scope & evidence →
Violent crime safety
Advisory wording → editorial precaution band
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. National advisory context; not a city incidence estimate
- Government of Canada: United Kingdom travel advice · Guidance retrieved 19 Oct 2026; page date 26 May 2026 12:50 ET
Full source notes, scope & evidence →
Water & sanitation
Lower of two coverage percentages → published site thresholds
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. National population proxy
- World Bank / WHO–UNICEF JMP: At least basic sanitation · Latest non-null country observation, 2020–2025 query
- World Bank / WHO–UNICEF JMP: At least basic drinking water · Latest non-null country observation, 2020–2025 query
Full source notes, scope & evidence →
English accessibility
Outside reviewed index coverage
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. Not established
Full source notes, scope & evidence →
Credit-card acceptance
Direct credit-card use + network breadth + app / cash dependence
Country-level evidence for United Kingdom; not a Cardiff visitor risk or city incidence estimate. Country visitor guidance / network context; not a city shop census
- VisitBritain · Visitor payment guidance retrieved 19 Oct 2026
Full source notes, scope & evidence →

Cardiff, United Kingdom travel notes.

Weather & time in Cardiff

Weather now

Right now in Cardiff

The year, at a glance.

Spring

Summer

Autumn

Winter

Travel Signals

Inclusion Index

Theft & pickpocket safety

Violent crime safety

Water & sanitation

English accessibility

Credit-card acceptance

Things to do in Cardiff

Cardiff Castle

National Museum Cardiff

Bute Park

St Fagans National Museum of History

Cardiff Victorian arcades

Cardiff Market

Cardiff Bay

Wales Millennium Centre

Principality Stadium tour

Techniquest

Airports in and around Cardiff

Cardiff Airport

Emergency info

Local emergency services

U.S. embassy & consular help

Packing planner

A little less guesswork in your suitcase.

More places in United Kingdom

London

Edinburgh

Belfast

Sources & evidence