Temperatures in August
It's pleasantly warm in August in Guernsey with an average temperature of 20°C. Temperatures this month range from a low of 19°C to a high of 21°C. At night, you can expect temperatures between 14°C and 16°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Guernsey in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Guernsey with mild temperatures, averaging around 21°C during the day and nights close to 15°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-August
By mid-August, the average daytime temperature stays the same at 21°C, with nights close to 16°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
End of August
By the end of August, the average daytime temperature in Guernsey will be around 20°C, with nights close to 15°C. A shower might show up, but overall the weather will be dry and sunny.
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Precipitation in August
In August, there is an average of 53 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average precipitation chance is 26% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Guernsey. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Guernsey in August |
UK | ||
|---|---|---|---|
 Average Temperature |
20°C | 22°C | |
 High Temp |
21°C | 24°C | |
| Low Temp |
19°C | 19°C | |
 Total Precipitation |
53 mm | 60 mm | |
| Rainy Days |
8 days | 10 days | |
July
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is August a good time to visit Guernsey?
Want nice weather? Then August is a great time to be in Guernsey. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Guernsey in August
With 32°C, Guernsey hit the highest temperature in the last 10 years in August 2022. The lowest daytime temperature in this month was 15°C in 2017. The extreme night temperatures ranged from a low of 10°C to a high of 20°C.
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Daily Temperature in August in Guernsey
This chart shows the average daily temperatures, both day and night, for each day in August in Guernsey, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in August in Guernsey
Excellent
Blessed climate, average 23 degrees, sunshine every day , sl... more
Okay
August on Guernsey brought mixed emotions. Although the isla... more
Daily Precipitation in August in Guernsey
The chart below shows the average daily precipitation in August for Guernsey, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 8 days of rain in Guernsey.
Daily UV Index in August in Guernsey
This chart shows the average daily UV index in August 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.
Temperature in August in Guernsey Over the Years
This chart shows the average temperature in August in Guernsey, measured in degrees Celsius, over the past years.
Total Precipitation in August in Guernsey Over the Years
This chart shows the average precipitation in August in Guernsey, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Guernsey
Click on a specific day in August for detailed info on the typical weather on that day in Guernsey. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Guernsey
The weather in August in Guernsey is rated an average of 4 out of 5 stars by 2 visitors. Have you been to Guernsey? Share your weather experience to help other visitors.
Write your own review
August on Guernsey brought mixed emotions. Although the island is bathed in sunshine and warm temperatures, there are also unexpected showers and cool evenings. Compliment the beauty of nature, despite the changeable weather.— This text is automatically translated to English
Blessed climate, average 23 degrees, sunshine every day , slight breeze. They are blissful islands to unwind and enjoy nature— This text is automatically translated to English
Have you been to Guernsey in August?
Share your weather experience in August in Guernsey.
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.
