Weather in Guernsey, Channel Islands in August

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Visiting Guernsey, Channel Islands in August

August is one of the best months to visit Guernsey for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

August has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 50% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. August has total rainfall of 0.8cm (0.3inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. Sea temperatures are a cool 20°C (68°F). August is a slightly chilly month for swimming in Guernsey.

Also consider visiting Guernsey in one of the other best months of June, July, September, for the best beach weather.

Also consider one of our other suggestions for August.

Can you sunbathe in Guernsey in August?

No, August is not a good time for sunbathing in Guernsey.

August has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 50% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. August has total rainfall of 0.8cm (0.3inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much.

More about August temperature and sunshine.

Can you swim in Guernsey in August?

Yes, August is a a slightly chilly month for swimming in Guernsey with cool sea temperatures 20°C (68°F).

More about August sea temperatures.

Is August a good time to holiday in Guernsey?

Yes, August is a good time for a holiday in Guernsey.

August has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 50% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day. August has total rainfall of 0.8cm (0.3inches) making it mostly dry with very rare light showers although there are 15.2 days with some rainfall, so on the days it does rain it is only light and intermittent and shouldn't affect your beach enjoyment too much. Sea temperatures are a cool 20°C (68°F). August is a slightly chilly month for swimming in Guernsey.

More about the August temperatures and sunshine.

Is Guernsey warm in August?

Yes, Guernsey is not that warm but sunbathing may be possible on some clear days in August.

The average maximum temperature in Guernsey in August is 19°C (66°F). The average maximum temperature is 19°C (67°) in the previous month and 18°C (64°F) in the next month.

The average temperature in Guernsey in August is 17°C (62°F). The average temperature is 17°C (62°F) in the previous month and 16°C (60°F) in the next month.

More info about the August temperatures and sunshine.

How sunny is Guernsey in August?

The average day light hours per day in Guernsey in August are 14.4. The sunshine percentage is 50% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

More about August sunshine.

Temperature in Guernsey in August

The average maximum temperature in Guernsey in August is 19°C (66°F). The average maximum temperature is 19°C (67°F) in the previous month and 18°C (64°F) in the next month.

The average temperature in Guernsey in August is 17°C (62°F). The average temperature is 17°C (62°F) in the previous month and 16°C (60°F) in the next month.

The average minimum temperature in Guernsey in August is 14°C (58°F). The minimum temperature is 14°C (57°F) in the previous month and 13°C (56°F) in the next month.

Sunshine in Guernsey in August

During August the average day light hours are 14.4 per day in Guernsey. The sunshine percentage is 50% making it quite sunny but with regular periods of cloudy and overcast skies. There are 7.2 hours of sunshine per day.

The ultraviolet index in Guernsey in August is typically 6.7 during August. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Guernsey in August

The average sea water temperature in Guernsey in August is 20°C (68°F) which is comfortable for swimming though some may prefer warmer water.

Rainfall in Guernsey in August

The average total rainfall in Guernsey in August is 0.8cm (0.3inches) and on average there are 15.2 rainy days in August making it a wet time to visit the beach.

Humidity in Guernsey in August

The maximum dew point (an indicator of humidity) in Guernsey in August is 16°C (60°F) which is comfortable for everyone. The dew point is 15°C (60°F) in the previous month and 15°C (15°F) in the next month.

The average maximum relative humidity in Guernsey in August is typically 96.7%. The maximum relative humidity is 96.9% in the previous month and 95.4% in the next month.

The average relative humidity in Guernsey in August is typically 84.6%. The average relative humidity is 83.4% in the previous month and 84% in the next month.

Wind Speed in Guernsey in August

The average maximum wind speed in Guernsey in August is typically 27KM/H (16MPH). The average maximum wind speed is 27KM/H (17MPH) in the previous month and 27KM/H (17MPH) in the next month.

The average wind speed in Guernsey in August is typically 18KM/H (11MPH). The average wind speed is 18KM/H (11MPH) in the previous month and 18KM/H (11MPH) in the next month.

The average wind direction in Guernsey in August is from the West.

Monthly Averages

Suggested Beaches in August

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.