Saint Peter Port (Sark) weather in July
July in Saint Peter Port: nice, a little rain, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Saint Peter Port · #169 of 1413 destinations to visit in July · comfort 92/100 (tier S)
- Days
- 21°C
- Nights
- 15°C
- Wet days
- 6
- Sun
- 12.5 h
- Humidity
- 87%
- Daylight
- 16 h
Traveller notes on Saint Peter Port in July
Forum posters name July/August as genuine high season - busier streets and traffic in St Peter Port, but with the reliability upside that ferry cancellations due to bad weather are far less common in summer than other times of year. The town itself is described as hilly enough that finding flat accommodation is a challenge, though it's consistently called a lovely base for 2-4 days, with a strong restaurant and pub scene. Clifftop walks are named a highlight of a July visit, and posters recommend day trips by ferry to the quieter neighboring islands of Herm (walkable in under three hours) and Sark for a slower-paced contrast to the town. The standard caveat: weather can still be fickle even in summer, so posters suggest padding an extra day into the itinerary to guarantee at least one clear day for outdoor plans.
Other months in Saint Peter Port
There isn't much January-specific forum detail for Saint Peter Port itself, but Guernsey's general weather threads agree conditions are genuinely variable this time of year and can turn on short notice. The island's own climate record fills in the rest: this is a proper Channel Islands winter, with frequent rain, mild but chilly daytime temperatures, and wind that regularly gusts strong enough to keep umbrellas at home in favor of a proper waterproof coat. Daylight is short too, so plan outdoor harbor walks for the middle of the day.
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Saint Peter Port climate normals — July
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Saint Peter Port in July
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdstravelers describe it as peak season, Viaer Marchi, school holidays in 7 of the markets that fill it
Sourced from traveler notes: “Forum posters name July/August as genuine high season - busier streets and traffic in St Peter Port, but with the…” — Tripadvisor community
Peak crowdsBusyShoulder seasonQuiet
Best months for Saint Peter Port's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSaint Peter Port's weather peaks June–August, best around July.
July includes Viaer Marchi.
Best weatherFair weatherToughest weather
What's on in Saint Peter Port in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Herm and Sark boat season
15 Apr – 15 Oct · usuallySummer season opensThe small boats to Herm, Sark and Alderney run frequently from the harbour through the season and thin out sharply after October. Half the reason to be based here is the day you spend on another island. Source ↗
- Festival
Viaer Marchi
6 JulMajor festivalCrowdedThe old market revived for one evening at Saumarez Park on the first Monday in July: crafts, tug of war, bean jar and the island's own Norman French on the signs. Very local, and the better for it. Source ↗
Nearby, and something's on
Within 300 km of Saint Peter Port — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Saint Peter Port?
Saint Peter Port in July — FAQ
- Is July a good time to visit Saint Peter Port?
- July in Saint Peter Port: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Saint Peter Port on SeasonMap's comfort score (92/100).
- What is the weather like in Saint Peter Port in July?
- In July, Saint Peter Port averages a daily high of 21°C and a low of 14.7°C, with about 33.2 mm of rain over roughly 5.5 rainy days.
- What is the air quality in Saint Peter Port in July?
- Saint Peter Port has a mean US Air Quality Index of about 43 in July.
Within 300 km: Isle of Wight's Round the Island Race around 20 Jun – 10 Jul, and Bath's Roman Baths open late on 1 Jul – 31 Aug.