Similar Climates › City Pairings › Cardiff ≈ Wellington
City Pairings
close match
Cardiff, Wales and Wellington, New Zealand are a close climate match — 18,871 km (11,726 mi) apart. Cardiff is Köppen zone Cfb; Wellington is Cfb.
See Cardiff on the interactive map →Cardiff and Wellington both sit in the oceanic (Cfb) zone, so their seasonal arcs line up. Because one city is in the opposite hemisphere, the comparison flips seasons: Cardiff’s January against Wellington’s July. They are about 18,871 km (11,726 mi) apart, nearly opposite on the globe, yet Wellington still tracks Cardiff’s January and July.
It is a close match: day-to-day weather in Wellington should feel familiar if you know Cardiff. January means differ by 4°C (Wellington warmer); July by 0°C (Wellington warmer). Rainfall shifts more: Wellington is 43 mm wetter in January.
Sunshine: Wellington averages 9.4 hours a day across the two months vs 7.8 in Cardiff (1.7 h/day more; January 6.7 h vs 4.1 h, July 12.2 h vs 11.4 h). PM2.5 averages stay near each other (5 µg/m³ in Wellington, 7 in Cardiff). Dew points differ modestly (January 6°C vs 3°C; July 12°C vs 13°C).
January & July · °C and mm
Wellington is in the southern hemisphere, so its July lines up with Cardiff's January — the bars above pair each city's summer and winter, not the calendar month.
Compare Cardiff and Wellington month by month on the interactive map →
See Wellington's climate twin on its own page.
On Similar Climates, Wellington, New Zealand is the closest distant match for Cardiff, Wales — scored close, about 18,871 km (11,726 mi) away.
Cardiff and Wellington are separated by roughly 18,871 km (11,726 mi) on the great-circle route.
No — they sit in opposite hemispheres, so seasons run about six months apart: Wellington’s July pairs with Cardiff’s January in the comparison.
Yes — both are oceanic (Cfb).
Cardiff has a oceanic climate (Cfb). January averages a high of 8°C and a low of 3°C with 92 mm of rain; July averages 21°C / 13°C and 72 mm.
Cardiff averages about 4.1 hours of sunshine a day in January and 11.4 hours in July.
January PM2.5 averages about 9 µg/m³ (US AQI 45); July averages 5.9 µg/m³ (US AQI 33).
Other close climate matches for Cardiff: Dunedin (fair), Hobart (loose), Vancouver (loose).
All oceanic (Cfb) cities on Similar Climates →
Explore Cardiff and Wellington on the interactive map →