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Cornwall Weather in August, United Kingdom

Cornwall Averages August


  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    7 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    21 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    60 mm

Slide and Tap Other Months

Cornwall Daily Averages August

August 2024 Daily Averages

1 Avg 15º 59º
2 Avg 16º 61º
3 Avg 16º 61º
4 Avg 15º 59º
5 Avg 16º 61º
6 Avg 16º 61º
7 Avg 15º 59º
8 Avg 16º 61º
9 Avg 16º 61º
10 Avg 16º 61º
11 Avg 15º 59º
12 Avg 16º 61º
13 Avg 16º 61º
14 Avg 15º 59º
15 Avg 15º 59º
16 Avg 15º 59º
17 Avg 15º 59º
18 Avg 15º 59º
19 Avg 15º 59º
20 Avg 15º 59º
21 Avg 15º 59º
22 Avg 16º 61º
23 Avg 15º 59º
24 Avg 14º 57º
25 Avg 15º 59º
26 Avg 15º 59º
27 Avg 15º 59º
28 Avg 15º 59º
29 Avg 15º 59º
30 Avg 14º 57º
31 Avg 14º 57º
Avg Historical Daily Average

August Weather Averages

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What's The Weather Like In Cornwall In August 

Weather conditions stay warm and mainly dry during August as the month is tied with July for the warmest conditions on land. Additionally, this month brings the warmest sea surface temperatures of the year. As a result, the beaches are usually very crowded, especially during the weekends. If you prefer a little more peace and quiet, it is a good idea to hit the beach on the regular weekdays to avoid the crowds.


While it is one of the warmer months of the year, it is still a good idea to consult an extended forecast before leaving home as the nights and early mornings are still cold enough for a light to medium weight jacket. Average overnight lows will fall to 13°C (55°F) in Cornwall during this time of the year. Temperatures will rebound in the afternoon, but if it is cloudy and the wind is blowing, it can feel a lot cooler than the average afternoon high of 19°C (66°F). Overall, the average daily temperature is 16°C (61°F).

Sunshine Hours

Visitors will want to pack some sunscreen for days when they hit the beach. During this time of the year, the region experiences an average of 11 hours of sunshine per day. The amount of sunshine makes this the perfect time of year to hit the beach and not only soak up some rays, but also experience some warmer waters. 

Sea Temperatrue

Water temperatures during this time of the year reach an average of 17°C (63°F). While it may not be warm enough for everyone, there are still plenty of people who will enjoy all the water sports the region has to offer.


This is also one of the drier months of the year. In fact, rain amounts will be increasing after this month as the calendar ticks over to autumn and winter. However, this month only receives an average of 60mm of precipitation. The rain falls over a period of 21 days, but much of the rain is short lived and the sun will soon reappear.

Cornwall Hotels In August

Hotel Tresanton

Located on the edge of St. Mawes, the Hotel Tresanton began life as a yachtsman's club before being converted into a luxury hotel. Each of the 30 rooms contains a breath-taking view of the sea and is welcoming to those traveling as a couple or with children. The hotel features a bar, restaurant, cinema, children's play area and even a private yacht that is available for private sightseeing tours from May through September. The hotel is actually made up of five houses and each room contains its own terrace and is meticulously decorated with antiques and other fine furnishings.

The Driftwood Hotel 

The Driftwood Hotel is a small privately owned boutique hotel located on seven acres of private land containing a beach and cove. The hotel offers a Michelin starred restaurant as well as private gardens, spa, private beach and more. The hotel welcomes both couples and those with children and all rooms have all the amenities of home to make sure that every guest has the most comfortable and enjoyable stay possible. Each of the hotel's 15 rooms is individually decorated and a hotel representative can you pick the size and amenities that are perfect for your holiday.

Metropole Hotel

Those looking for luxury in Padstow will find it at the Metropole Hotel. In business since 1900, the hotel knows how to do luxury and do it right. As a result, guests will find their every need met with a friendly and knowledgeable staff waiting to provide you with the August holiday of your dreams. Both dogs and children are welcome and the hotel offers the only heated outdoor pool in the city as well as private gardens, a sun terrace, numerous dining options, and 58 luxury appointed rooms.

Cornwall Beaches For August

August is one of the more popular times to hit the beach as waters are at their warmest numbers of the year. As a result, area beaches can get somewhat crowded, especially on the weekends.


One of the more popular beaches for families and couples is Porthcurno. Surrounded by stunning cliffs, the beach is full of golden sand and home to waves that are suitable for more experienced surfers. Because it is protected from the strong northerly winds, the weather is quite nice this time of the year and visitors are able to enjoy the average high temperatures of 19°C (66°F). This stunning setting is also a great place for those looking to take memorable photos to return home with.

Bars And Restaurants

Gusto Deli Bar 

Gusto Deli Bar is the perfect place for those looking to dine on a budget, but still enjoy high quality, local dishes. Located in Newquay, guests should be prepared to wait a while at lunch to get the ever-popular lunchbox that includes a wide variety of treats such as pork, chicken, potatoes and freshly prepared bread. With large portions, you will not go hungry for the rest of the afternoon.

Trewithen Restaurant

Special events are even more special at the Trewithen Restaurant in Lostwithiel. Known as one of the best restaurants in Cornwall, visitors will not be disappointed with the high level of service and food. Open throughout the year, the restaurant has developed a very loyal following of both locals and guests and reservations are highly recommended. The food itself is a mixture of traditional British food along with Mediterranean and Eastern influences.

The Queens Arms, Breage

With at least eight ales on hand at any time, The Queens Arms, Breage is the place to be for a pint and live music. Located in Helston, the pub and its staff are warm and welcoming and will invite guests to sit and stay a while. This is a great location to really enjoy the region and soak up some of the local culture.

Things To Do In Cornwall In August

Fowey Regatta

During the third week of August, one of the more popular events in Cornwall is the Fowey Regatta. Visitors come from all over the world to take in the sights and sounds of one of England's best known sailing events. However, there are still plenty of things to do and see on land including nightly live music events, parades, fireworks, eating contests and dances.


With water temperatures the warmest they will be all year at 17°C (63°), now is the perfect time to enjoy scuba diving off the coast of Cornwall. While not as famous as some other diving spots around the world, the waters off the coast contain shipwrecks, reefs and abundant marine life all waiting to be explored. Companies such as Cornwall Divers can not only train visitors, but can also take them to some of the more popular dive sites in the region. 

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