As the summer wanes and autumn approaches, it’s inevitable that the familiar sight of black rain clouds gathering on the horizon will greet us once again. The cooler, less humid autumn weather can be perfect for hiking around the UK, but the autumn months can also be colder ones, and as autumn turns into winter, they invariably become wetter, too. We’ll be taking a closer look at some of the best waterproof jackets for hiking in the autumn months, but first we’ll discuss a little bit about what to look for in a waterproof jacket, some things to consider when you’re buying a new one and which elements are the ones to look for if you’re out and about hiking. If you’re hiking, weight, size and bulkiness are important factors to consider in a waterproof hiking jacket. You will need to have the freedom to move and feel agile and not inhibited, so we’d recommend trying on a few lightweight options to see how it feels when you’re at full stretch. Hiking waterproof jackets also need to be extremely breathable or thin enough to be successfully layered – otherwise, you’ll overheat very quickly when on the move. Waterproof ratings are in ‘mm’, and signify the maximum amount of water a garment can take before it no longer can keep back the flood. This usually ranges from about 10,000 to 20/30,000mm, so more than good enough for most grey UK days. That being said, every jacket has its limits, so it pays to do you research if you’re heading into the jungle, for example. When it comes to fit, it’s also worth mentioning adjustment options, so we recommend looking for jackets that have good hem cords and the ability to fit a helmet underneath – good hood adjustment options are a must. We also really like the wired-hem hoods that stay up a lot easier in the wind and rain….there is nothing more annoying that having to keep pulling up your hood again every thirty seconds because it can’t stay in place! Here’s our list of some of the best waterproof jackets on the market at the moment. Love hiking? Check out our coverage of the best men’s hiking boots, the best men’s waterproof trousers, and the best backpacking tents.