Cardiff Population (2026)
Population of Cardiff with area, density and how it compares to nearby places.
Population of Cardiff
Quick facts about Cardiff
| Type | City |
|---|---|
| County | South Wales |
| Country | United Kingdom |
| Continent | Europe |
| Coordinates | 51°28′53.8″N 3°10′44.8″W (51.4816, -3.1791) |
| Population | 375.000 |
| Known for | the castle and Millennium Centre |
| Local time | 3:30 AM (UTC+01:00) |
| Best months | June, July and August |
| Climate | Temperate |
Summary
Cardiff is a city in South Wales. Cardiff is known for the castle and Millennium Centre. It has a population of about 375.000.
Right now it is 66°F (19°C) in Cardiff with overcast. It feels like 67°F. Today runs from 64°F to 77°F. Chance of precipitation is 55%. Sightseeing conditions score 8.2/10 - good conditions.
The best time to visit Cardiff is June, July and August. The climate is temperate. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 73°F, while January is the coldest with lows near 36°F.
The closest major airport is London Heathrow Airport (LHR), about 117 mi away. Nearby highlights include Stonehenge, Avebury and Associated Sites, Stonehenge, Snowdonia National Park and River Thames.
In plain terms. Today is warmer than average for August. The forecast high of 77°F is 7.2°F above the 70°F typical for this month. The best window to be outside is roughly 11 AM to 2 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Cardiff today at 9.4/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Map of Cardiff
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Coordinates: 51°28′53.8″N 3°10′44.8″W (51.4816, -3.1791)
Explore Cardiff
Every topic we hold for this place, and the same topic for the places around it.
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Frequently asked questions
Where is Cardiff?
Cardiff is a city in South Wales. Its coordinates are 51.4816, -3.1791. It lies in Europe.
What is the weather like in Cardiff right now?
It is currently 66°F (19°C) with overcast. Humidity is 83% and wind is 7 mph.
When is the best time to visit Cardiff?
June, July and August offer the most comfortable conditions in Cardiff, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Cardiff in?
Cardiff observes Europe/London (UTC+01:00). The local time is 3:30 AM.
How many people live in Cardiff?
Cardiff has a population of approximately 375.000.
What is the nearest airport to Cardiff?
The closest airports are London Heathrow Airport (LHR), 117 mi away, London Gatwick Airport (LGW), 131 mi away and Dublin Airport (DUB), 187 mi away.
What are the top things to do in Cardiff?
Popular options include Stonehenge, Avebury and Associated Sites, Stonehenge, Snowdonia National Park, River Thames, British Museum and Big Ben and the Houses of Parliament.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-supported) - coordinates, hierarchy and facts. |
|---|---|
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 26, 2026 at 3:30 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
