Swansea weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Good
Best time to visit: June – September
What is the weather like in Swansea in June?
In June, Swansea is mild: daytime highs average 17 °C, and nights cool down to about 12 °C. The sea averages 14.4 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 77 mm in total. All in all, June is a good month for a holiday in Swansea.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 16 h 37 min04:57 – 21:34
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 23 km/haverage daily peakAll months
- Cloud cover
- 67 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 50 %91 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 30 %40 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Swansea in June: quick answers
Is Swansea hot in June?
No. In June, Swansea is mild: daytime highs average 17 °C and nights drop to about 12 °C.
Can you swim in Swansea in June?
Only if you don't mind cold water: in June the sea averages just 14.4 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Swansea in June?
Rain is frequent, with about 12 rainy days and 77 mm in total.
Swansea month by month
The whole year in SwanseaAll destinations: United KingdomWhere to go in JuneSea temperature in June
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences