Cardiff Weather Forecast
Cardiff weather: 61°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
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 61°F (16°C) in Cardiff with overcast. It feels like 56°F. Today runs from 59°F to 77°F. Chance of precipitation is 46%. Sightseeing conditions score 8.3/10 - 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 slightly warmer than average for August. The forecast high of 77°F is 6.7°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 9.1/10. 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.
Weather in Cardiff right now
Source: Open-Meteo. Updated 10:02 AM, Aug 25 local time.
See the Cardiff forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Cardiff
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | 🌦️ Light rain | 77° / 59° | 46% · 0,1 in | 13 mph | 4 |
| Wed, Aug 26 | 🌦️ Light drizzle | 77° / 63° | 57% · 0,0 in | 7 mph | 4 |
| Thu, Aug 27 | 🌦️ Drizzle | 73° / 63° | 98% · 0,1 in | 9 mph | 5 |
| Fri, Aug 28 | 🌦️ Drizzle | 68° / 59° | 74% · 0,1 in | 13 mph | 4 |
| Sat, Aug 29 | 🌦️ Light drizzle | 70° / 61° | 63% · 0,1 in | 15 mph | 5 |
| Sun, Aug 30 | 🌦️ Light rain | 68° / 61° | 93% · 0,3 in | 18 mph | 4 |
| Mon, Aug 31 | 🌦️ Light drizzle | 65° / 56° | 90% · 0,2 in | 17 mph | 5 |
| Tue, Sep 1 | 🌦️ Light drizzle | 68° / 54° | 43% · 0,0 in | 7 mph | 3 |
| Wed, Sep 2 | 🌧️ Heavy drizzle | 67° / 60° | 63% · 0,3 in | 14 mph | 1 |
| Thu, Sep 3 | 🌦️ Drizzle | 65° / 55° | 37% · 0,2 in | 14 mph | 5 |
| Fri, Sep 4 | 🌦️ Light showers | 69° / 59° | 40% · 0,8 in | 21 mph | 5 |
| Sat, Sep 5 | 🌦️ Light drizzle | 67° / 59° | 37% · 0,1 in | 19 mph | 2 |
| Sun, Sep 6 | 🌦️ Light drizzle | 65° / 55° | 33% · 0,0 in | 14 mph | 5 |
| Mon, Sep 7 | ☁️ Overcast | 67° / 50° | 35% | 6 mph | 5 |
| Tue, Sep 8 | ☀️ Clear sky | -- / -- | — | -- | 2 |
| Wed, Sep 9 | ☀️ Clear sky | -- / -- | — | -- | — |
Climate in Cardiff month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 46° | 36° | 5,5 in | ★★☆☆☆ |
| February | 49° | 41° | 6,2 in | ★★☆☆☆ |
| March | 54° | 40° | 3,5 in | ★★★☆☆ |
| April | 58° | 44° | 4,0 in | ★★★☆☆ |
| May | 65° | 50° | 3,8 in | ★★★★☆ |
| June | 68° | 54° | 3,6 in | ★★★★☆ |
| July | 73° | 57° | 2,3 in | ★★★★☆ |
| August | 70° | 56° | 2,2 in | ★★★★☆ |
| September | 65° | 53° | 5,9 in | ★★★☆☆ |
| October | 59° | 49° | 5,9 in | ★★★☆☆ |
| November | 52° | 43° | 5,2 in | ★★★☆☆ |
| December | 50° | 42° | 6,8 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Weather map for Cardiff
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Cardiff
Pollen today
Pollen is modelled for Europe only; other regions show no values.
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Cardiff
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Cardiff
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 61°F (16°C) with overcast. Humidity is 63% and wind is 10 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 10:02 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. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| 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 25, 2026 at 10:02 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
