Best time to visit Cardiff

Find the best time to visit Cardiff and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Cardiff by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Cardiff?

The best time to visit Cardiff is June, July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 7°C maximum daytime temperature in January in Cardiff7
    Jan
  • 7°C maximum daytime temperature in February in Cardiff7
    Feb
  • 10°C maximum daytime temperature in March in Cardiff10
    Mar
  • 12°C maximum daytime temperature in April in Cardiff12
    Apr
  • 16°C maximum daytime temperature in May in Cardiff16
    May
  • 19°C maximum daytime temperature in June in Cardiff19
    Jun
  • 20°C maximum daytime temperature in July in Cardiff20
    Jul
  • 20°C maximum daytime temperature in August in Cardiff20
    Aug
  • 18°C maximum daytime temperature in September in Cardiff18
    Sep
  • 14°C maximum daytime temperature in October in Cardiff14
    Oct
  • 10°C maximum daytime temperature in November in Cardiff10
    Nov
  • 8°C maximum daytime temperature in December in Cardiff8
    Dec

Hours of Sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Which is the hottest month in Cardiff?

The hottest time of year in Cardiff is normally July. Expect maximum daytime temperatures to reach 20°C.

Which month has the most rain in Cardiff?

In terms of rainfall, December is usually the wettest month in Cardiff with 109mm on average. There are normally 19 days in December with some rain.

When is it sunniest in Cardiff?

The sunniest time of year in Cardiff is normally August with bright sunshine on average for 41% of daylight hours; that's 6 hours of sunshine per day.

When is the sea warmest in Cardiff?

The sea is usually at its warmest in Cardiff in August when the water temperature reaches 18°C.

Best time to visit

The weather guide for Wales (Cardiff) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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