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Guernsey Weather in July
July in Guernsey brings pleasant temperatures, with highs of 18°C (64°F) and nights dropping to 15°C (59°F). It's also the driest month of the year, ideal for those who want to avoid rain.
Rainfall in Guernsey in July
Clear skies and little rain are the norm this month. A great time to spend time outdoors. Historically, July sees about 10 days of rain, with a monthly average of 41 mm (1.6 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Guernsey in July
July in Guernsey sees highs of 18°C (64°F) and lows of 15°C (59°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Guernsey in July
Enjoy a sunny month with about 252 hours of sunshine, the clear skies make Guernsey even more beautiful.If you're a fan of comfortable temperatures and drier conditions, July is a great time to visit.
Guernsey Temperature in July
Min Temperature
15°C (59°F)
Max Temperature
18°C (64°F)
Chance of Rain
33%
Precipitation
41 mm (1.6 in)
Rainy days
10 days
Sunshine
252 hours
Percentage Sunshine
51%
Guernsey Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guernsey - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Guernsey typically stay consistent throughout July, with daily highs averaging around 18°C (64°F). Nights are cool, with lows around 14°C (57°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather records for Guernsey in July
Browse day-by-day weather records for Guernsey spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guernsey historical weather extremes in July
Based on 50 years of weather observations in Guernsey between 1976 and 2026, these are the recorded extremes.
- Guernsey recorded its highest July temperature of 34°C (93°F) on July 18, 2022.
- On July 4, 1978, Guernsey saw its coldest July day with temperatures maxing out at 12°C (54°F).
- Nighttime temperatures dropped to 9°C (48°F) on July 7, 1996, marking the coldest July night on record.
Best Places in the United Kingdom in July
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in July →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Guernsey in July
For Guernsey in July, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Guernsey in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping10/10 -
Outdoor sports10/10
Guernsey 3-Day Forecast
More climate data for Guernsey
See the full Guernsey climate overview or explore weather in the United Kingdom.
Popular in July
Where to go in July - average daytime high across popular destinations.
London
23°C (73°F) Bath22°C (72°F) York22°C (72°F) Manchester
21°C (70°F) Edinburgh
19°C (66°F) Glasgow19°C (66°F) Torquay20°C (68°F) Blackpool19°C (66°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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