Cardiff in June
In June, Cardiff averages 19°C (67°F) during the day and 12°C (54°F) at night, with around 13 days of rain (67 mm total).
Peak seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
June offers comfortable temperatures in Cardiff, with some rain to plan around.
How June compares to the rest of the year in Cardiff
June is one of the warmest months in Cardiff (3rd of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 5°C above the annual average (14°C). June runs 3°C warmer than May (16°C) and warms a further 1°C into July (21°C).
June sunrise & sunset in Cardiff
Times shown for Cardiff local time (Europe/London), calculated for the 15th of June. They shift by a few minutes day to day across the month.
Photography light in Cardiff — June
Golden-hour and blue-hour windows for the 15th of June, in Cardiff's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Cardiff in June
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on June's tier (Peak season) and Cardiff's popularity.
Crowds & pricing — June in Cardiff
Cardiff is in peak season during this month — expect bigger crowds at famous sights, higher hotel and flight prices, and longer queues. Restaurant reservations a few days out are advisable, and any boutique hotels you have your eye on should be booked weeks ahead. The trade-off: most attractions, restaurants, and seasonal services are fully open, the weather is at its most reliable, and the city feels at its most alive.
Why this tier: excellent tourism weather
Sun & mosquito risk — June in Cardiff
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Cardiff in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 8°C / 47°F | 3°C / 38°F | 111 mm | 17 | — |
| February | 9°C / 48°F | 3°C / 38°F | 102 mm | 14 | — |
| March | 10°C / 51°F | 4°C / 40°F | 97 mm | 16 | — |
| April | 13°C / 56°F | 5°C / 42°F | 61 mm | 10 | — |
| May | 16°C / 61°F | 9°C / 48°F | 82 mm | 12 | — |
| June | 19°C / 67°F | 12°C / 54°F | 67 mm | 13 | — |
| July | 21°C / 69°F | 14°C / 56°F | 80 mm | 14 | — |
| August | 20°C / 68°F | 13°C / 56°F | 105 mm | 15 | — |
| September | 18°C / 65°F | 12°C / 53°F | 87 mm | 12 | — |
| October | 15°C / 59°F | 10°C / 49°F | 134 mm | 15 | — |
| November | 11°C / 52°F | 6°C / 43°F | 114 mm | 16 | — |
| December | 9°C / 49°F | 5°C / 41°F | 139 mm | 18 | — |
Other cities with similar June weather
🌍 See the full ranked list of climate twins for Cardiff in June →
Frequently asked questions
How hot is Cardiff in June?
In June, Cardiff averages a high of 19°C (67°F) and a low of 12°C (54°F) — generally mild and pleasant.
Does it rain a lot in Cardiff in June?
June can be fairly wet in Cardiff, with about 13 rainy days on average.
Is June a good time to visit Cardiff?
June is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Cardiff in June?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full June packing list for Cardiff for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.