Planning for the weather is an important factor for making your trip to Gairloch a success, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 13°C, while the coldest months are January and February, with an average of 5°C. The rainiest months in Gairloch are December, October, January and November, with each month seeing an average of 213 mm of rainfall.