The high seasonal norm is 68°F. June is a bit cooler, so you may prefer July and August. I've seen the average temperatures but wondered have people who've been found it warm enough for a summer holiday in general? the weather can be hit and miss, but brittany will not be as crowded as cornwall and it is so beautiful. Hello All, I'm contemplating a 3-week driving trip around Brittany in August 2018. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month. (yes, I know: August with everyone else on vacation.) The winter season in Brittany stretches from November to February, spanning four months of the year. The weather in Lamballe in the month of august comes from statistical datas on the past years. It can be characterised by cold weather and lots of rain. Get the monthly weather forecast for Bretagne, Territoire de Belfort, France, including daily high/low, historical averages, to help you plan ahead. Continents Select a continent Select a continent The weather in august in Plouescat is wet (with 2.3in of rainfall over 11 days). FoylesForBooks Mon 22-Jun-15 18:05:39. See what the weather in Brittany (France) is like during any month of the year. Unfortunately, the weather conditions is worsening than the previous month since in july there is an average of 2.4in of rainfall over 10 days. I'm an experienced solo, independent traveler, and have driven in France before, so that's not an issue. August is a warm and slightly rainy time for sunbathing in Brittany.August is a good month for swimming in Brittany with warm sea temperatures. Brittany, France. The climate quite enjoyable there the month of august. Winter. Weather in Brittany in July-August (11 Posts) Add message | Report. Consider visiting Brittany in the months of June, July, August, September, for the best beach weather.Also consider one of our other suggestions for August. Best Time The best time to visit Brittany is summer, from June to August, since it is the warmest of the year, although even in this season it's better to bring a sweatshirt, a light jacket and an umbrella. The highest daily average temperature falls in November with 10°C, while the rest of the months see a daily average of 8°C. if you are going camping with a camping company, look at prices of the flights, it is the way to go, i have done ferries to brittany and it is hard going, but flew last year and it loads easier Weather in Lamballe in august 2021. Brittany weather & climate: all about temperatures, precipitation, sunshine, snow, heat and more Brittany weather information. Get the monthly weather forecast for Brittany, LA, including daily high/low, historical averages, to help you plan ahead.