Llanfairpwllgwyngyll weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Poor
Best time to visit: April – August
What is the weather like in Llanfairpwllgwyngyll in July?
In July, Llanfairpwllgwyngyll is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 14.7 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 14 rainy days and 66 mm in total. All in all, July is not an ideal month for a holiday in Llanfairpwllgwyngyll.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 16 h 31 min05:07 – 21:38
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 71 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %60 %
- Few rainy daysweight 20 %31 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Llanfairpwllgwyngyll in July: quick answers
Is Llanfairpwllgwyngyll hot in July?
No. In July, Llanfairpwllgwyngyll is mild: daytime highs average 18 °C and nights drop to about 13 °C.
Can you swim in Llanfairpwllgwyngyll in July?
Only if you don't mind cold water: in July the sea averages just 14.7 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Llanfairpwllgwyngyll in July?
Rain is frequent, with about 14 rainy days and 66 mm in total.
Llanfairpwllgwyngyll month by month
The whole year in LlanfairpwllgwyngyllAll destinations: United KingdomWhere to go in JulySea temperature in July
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