Guernsey Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Guernsey, the United Kingdom in August.

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St Peter Port St Martin Guernsey St Saviour Guernsey Castel

Planning a trip to Guernsey, the United Kingdom this August? Here's what you need to know about the weather:

What to Expect in Guernsey in August

Guernsey, the United Kingdom is a region in the United Kingdom. August in Guernsey generally has pleasant temperatures, with moderate precipitation.

Temperatures

You can expect pleasant maximum daytime temperatures of around 19°C (66°F) and nighttime temperatures around 16°C (61°F) in St Peter Port. On average, August is the month with the highest temperature of the year in Guernsey, the United Kingdom.

For specific regional insights in Guernsey, the United Kingdom, refer to the map provided below.

Precipitation

August is a moderate rainy month with an average rainfall of around 55 mm (2.2 in) in St Peter Port.

Average sunshine

Most destinations offer generous amounts of sunshine this August. For example, St Peter Port gets approximately 232 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Guernsey by month

Pick a month to see the average temperature, rainfall and sunshine in Guernsey — and find the best time to visit. (based on St Peter Port)

January11°C (52°F) February11°C (52°F) March11°C (52°F) April12°C (54°F) May14°C (57°F) June16°C (61°F) This monthJuly18°C (64°F) August19°C (66°F) September19°C (66°F) October17°C (63°F) November14°C (57°F) December12°C (54°F)
Best Time to Visit Guernsey →

Best Places to Visit in Guernsey in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Guernsey.

Conditions Temperatures Precipitation
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).

Popular Destinations in Guernsey

What is the weather like in August for some of the most popular destinations in Guernsey, the United Kingdom?

Temperature range in Guernsey (August)

Precipitation variation in Guernsey (August)

St Peter Port

In August St Peter Port generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 16°C (61°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
19°C (66°F)
19°C (66°F)
Min temperature
15°C (59°F)
16°C (61°F)
16°C (61°F)
Monthly sun hours
252 hours
232 hours
182 hours
Monthly rainfall
41 mm (1.6 in)
55 mm (2.2 in)
67 mm (2.6 in)
Monthly rainy days
10 days
11 days
13 days
Weather conditions
pleasant
pleasant
pleasant
Climate in St Peter Port →

St Martin Guernsey

In August St Martin Guernsey generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 16°C (61°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
19°C (66°F)
19°C (66°F)
Min temperature
15°C (59°F)
16°C (61°F)
16°C (61°F)
Monthly sun hours
252 hours
232 hours
182 hours
Monthly rainfall
41 mm (1.6 in)
56 mm (2.2 in)
67 mm (2.6 in)
Monthly rainy days
10 days
11 days
13 days
Weather conditions
pleasant
pleasant
pleasant
Climate in St Martin Guernsey →

St Saviour Guernsey

In August St Saviour Guernsey generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 16°C (61°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
19°C (66°F)
18°C (64°F)
Min temperature
15°C (59°F)
16°C (61°F)
16°C (61°F)
Monthly sun hours
252 hours
232 hours
182 hours
Monthly rainfall
42 mm (1.7 in)
56 mm (2.2 in)
66 mm (2.6 in)
Monthly rainy days
10 days
11 days
13 days
Weather conditions
pleasant
pleasant
pleasant
Climate in St Saviour Guernsey →

Castel

In August Castel generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 16°C (61°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
19°C (66°F)
18°C (64°F)
Min temperature
15°C (59°F)
16°C (61°F)
16°C (61°F)
Monthly sun hours
252 hours
232 hours
182 hours
Monthly rainfall
41 mm (1.6 in)
56 mm (2.2 in)
66 mm (2.6 in)
Monthly rainy days
10 days
11 days
13 days
Weather conditions
pleasant
pleasant
pleasant
Climate in Castel →

Is your destination not in the list? Have a look at all destinations in Guernsey, in the United Kingdom.

Popular cities in August

Day & night temperatures, rainfall and average weather in Guernsey in August.

City Weather Day temp Night temp Rainfall
St Peter Port 19°C (66°F) 16°C (61°F) 55 mm (2.2 in)
St Martin Guernsey 19°C (66°F) 16°C (61°F) 56 mm (2.2 in)
St Saviour Guernsey 19°C (66°F) 16°C (61°F) 56 mm (2.2 in)
Castel 19°C (66°F) 16°C (61°F) 56 mm (2.2 in)

Guernsey weather in August: frequently asked questions

What is the weather like in Guernsey, the United Kingdom in August?

Guernsey, the United Kingdom typically experiences pleasant weather in August, part of the season. Daytime highs in St Peter Port average around 19°C (66°F), and temperatures drop to about 16°C (61°F) at night.

What is the average temperature in Guernsey, the United Kingdom in August?

Average temperatures in Guernsey, the United Kingdom during August range from a nighttime low near 16°C (61°F) to a daytime high around 19°C (66°F) in St Peter Port.

Does Guernsey, the United Kingdom get a lot of rain in August?

August is on the drier side in Guernsey, the United Kingdom. St Peter Port averages only about 55 mm (2.2 in), with most days staying dry.

Is August a Good Time to Visit Guernsey, the United Kingdom?

We believe that August is one of the best times to visit Guernsey, the United Kingdom with overall pleasant weather in St Peter Port. However, the weather conditions may vary depending on your destination.

Generally speaking, July, August and September provide pleasant weather in St Peter Port. In contrast, January and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Guernsey.

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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