Saint Peter Port 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
Excellent
Best time to visit: June – September
What is the weather like in Saint Peter Port in July?
In July, Saint Peter Port is mild: daytime highs average 17 °C, and nights cool down to about 15 °C. The sea averages 15.8 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 37 mm. It is often windy, with gusts of around 29 km/h. All in all, July is an excellent month for a holiday in Saint Peter Port.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 15 h 54 min05:19 – 21:13
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 29 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Guernsey
How the score comes together
- Temperatureweight 50 %86 %
- Sunshineweight 20 %87 %
- Few rainy daysweight 30 %77 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Windproof jacket
Saint Peter Port in July: quick answers
Is Saint Peter Port hot in July?
No. In July, Saint Peter Port is mild: daytime highs average 17 °C and nights drop to about 15 °C.
Can you swim in Saint Peter Port in July?
Only if you don't mind cold water: in July the sea averages just 15.8 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Saint Peter Port in July?
Rain falls on about 7 days, adding up to 37 mm.
Saint Peter Port month by month
The whole year in Saint Peter PortAll destinations: GuernseyWhere 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