Wetter in Cardiff nach Monat
Die beste Reisezeit für Cardiff ist Juni bis August – 91/100 im Juli, 22°C und 12 Regentage. Beste Jahreszeit: Sommer – Juni bis August (89/100 im Schnitt).
Der schwächste Monat ist der Dezember mit 51/100 – kalt, regnerisch, sauberer Luft. Dezember ansehen →
Aktualisiert: September 2026 · Klimanormalwerte aus der ERA5-Reanalyse
Planst du eine größere Reise? Beste Reisezeit Vereinigtes Königreich →
Beste Jahreszeit: Juni bis August (89/100 im Schnitt) · am schwächsten im Dezember (51/100)
- Tagsüber
- 22°C
- Nachts
- 14°C
- Regentage
- 12
- Sonne
- 10.9 h
- Luftfeuchte
- 77%
- Tageslicht
- 16 h

Cardiff, Monat für Monat
Komfort-Score von 100 für die Art Reise, für die Cardiff am besten passt, dazu der durchschnittliche Tageshöchstwert, Regentage und Sonnenstunden pro Tag aus den Klimanormalwerten – und wie voll es meist ist.
Was ist los in Cardiff übers Jahr
Festivals, Naturschauspiele, Feiertage und die Saisons, auf die du achten solltest – kuratiert und mit Quelle. Die Details stehen auf den Monatsseiten.
- Februar
- Six Nations match days1. Feb. – 20. März (meist)Festival
- April
- Children's Literature Festival18.–30. Apr. (meist)Festival
- Juni
- Tafwyl15.–25. Juni (meist)Festival
- Juli
- Cardiff Food and Drink Festival1.–12. Juli (meist)Festival
- Oktober
- Cardiff Half Marathon1.–12. Okt. (meist)Festival
- November
- Autumn internationals1.–30. Nov. (meist)Festival
- Cardiff Winter Wonderland10. Nov. – 5. Jan. (meist)Eröffnung
Andrang in Cardiff im Juli
Wie voll der Ort selbst ist – Schul- und Massenferien, die Monate, die die Redaktion markiert hat, und wie begehrt das Wetter sie macht. Fließt nie in den Komfort-Score ein.
HochbetriebCardiff Food and Drink Festival, Summer holidays in Vereinigtes Königreich, Schulferien in 6 der Herkunftsländer, aus denen die Gäste kommen(geschätzt)
HochbetriebViel losZwischensaisonRuhig
Gut zu wissen, bevor du nach Cardiff reist
Echte Erfahrungen aus Reiseberichten, zitiert mit Link zum Original.
practical
We visited Cardiff Castle midweek during term time specifically to dodge the weekend and school-holiday crowds, and the quieter pace let us actually take in how strange the layering of history is here, a Roman fort becoming a Norman keep becoming a Victorian Gothic fantasy on the exact same site. We downloaded the free castle app for a self-guided audio tour rather than paying for the official guided option, and it covered everything we wanted to know. Climbing the keep first, while our legs were still fresh, gave us the best rooftop views before we tackled the Bute Apartments, each room decorated in its own elaborate Victorian theme. We budgeted a full four hours and used every minute of it.
Notizen von Reisenden zu Cardiff
Was Leute sagen, die dort waren – zuerst die ganzjährigen Notizen, dann Monat für Monat.
Forum posters describe Cardiff's sheltered position on the Bristol Channel as giving it one of the milder climates in the UK, without the temperature extremes some other parts of Britain see, and note that snow in the city itself is rare even in January - it's much more likely up in the higher elevations of the Brecon Beacons. Posters are consistent that mild and wet describes a typical south Wales January far better than cold and snowy, with most of the region's heaviest rain actually concentrated in the October-through-January stretch. Posters flag the short winter days as a real factor, with darkness for around 15 hours. Posters generally rate Cardiff as a fine January destination for its castle, museums and Cardiff Bay, while noting that bus service to surrounding holiday areas runs more limited this time of year than in peak season.
Forum posters describe February across Wales as starting cold, dark and potentially stormy, typically settling somewhat in the second half of the month, with rain and frost likely and snow a real possibility in places. Posters specifically note that Cardiff's sheltered position on the Bristol Channel spares it the extremes seen elsewhere in Wales, making it one of the UK's milder cities where snow stays rare even so - winters here run wet and raw rather than bitterly cold. Posters consistently recommend a hat over an umbrella given how often wind drives the rain sideways, alongside waterproof shoes and thick socks. Posters generally rate February as damp, blustery but comparatively mild for Cardiff specifically relative to the rest of Wales, workable with solid waterproof gear.
The forum's honest summary of a Cardiff July is that it could be very hot, could be chilly, or could rain without stopping — Welsh weather being "entirely unpredictable" — but they rate July as the more reliable month than August if the dates are yours to choose, particularly for hiking. What July reliably is not is oppressive: averages sit near 20°C, which regulars count as an advantage over Mediterranean destinations in high summer. Rain lands on around a dozen days across the month, so the standing packing advice is light summer clothes plus a thin sweater and a light waterproof.
Cardiff forum regulars call August the hottest stretch of the year locally but rarely an extreme one: “on occasion can be hot, but rarely uncomfortably so,” with Cardiff singled out as one of the mildest cities in the UK, generally spared the heavier rainfall that hits Wales's upland areas. When rain does come it's “more likely to be light rain or drizzle” than a proper downpour, so a light rain jacket covers most days rather than full waterproofs, though regulars still pack wellies just in case. The one genuine crowd risk: on a rare hot August weekend, beaches fill up fast and parking gets difficult. Our record: 20°C days, 14.3°C nights, 12.2 rain days and a 19.1°C sea — mild rather than hot, matching the “rarely uncomfortably warm” read closely.
Schreib deine eigene Notiz – direkt auf der Karte, bei Cardiff.