The weather in July in Guernsey

It's pleasantly warm in July in Guernsey with an average temperature of 21°C. Temperatures this month range from a low of 19°C to a high of 23°C. At night, you can expect temperatures between 14°C and 16°C.

Looking for great weather? July is a good time to be in Guernsey. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for Guernsey. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 35°C in 2022, Guernsey reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 15°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 23°C.

Water temperature

The water temperature at Guernsey is 16°C this month. This is probably too cold to swim without protective gear.

Rainfall amount

In July, there is an average of 27 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in July for Guernsey

Click on any day in July to get detailed info about the usual weather on that day in Guernsey. Check out the historical temperatures and precipitation over the past 10 years on this day.

July weather comparison

  Guernsey New York
Average temperature 21°C 31°C
Max. temperature 23°C 33°C
Min. temperature 14°C -5°C
Total precipitation 27 mm 160 mm
Rainy days 6 days 18 days

Start of July

The month of July starts in Guernsey with mild temps, averaging around 21°C during the day and nights around 15°C.

Mid July

By mid-July, daytime temps rise to around 22°C, with nights around 16°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of July

By the end of July, the average daytime temperature in Guernsey is around 21°C, while nighttime temps are about 16°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

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UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Guernsey for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in July in Guernsey. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in July in Guernsey

Temperature in July in Guernsey over the years

Precipitation charts

These charts show the average amount of precipitation in July in Guernsey. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in July in Guernsey

Total precipitation in July in Guernsey over the years

Daily UV index in July in Guernsey

This chart shows the average daily UV index in July in Guernsey, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in July in Guernsey

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Average weather in Guernsey by month

Click on a month below to see detailed weather info for Guernsey. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.