Filey has what is known as a "temperate" climate, which means it gets neither too cold, nor too hot. It is sunnier than many more famous seaside resorts over on the west coast of the country, however. As well as this, it is usually much drier too.
The hottest and sunniest time to visit is usually mid summer (July and August), when the sea has a bearable (?) temperature of about 15 degrees and the average daily temperatures are around the low to mid twenties. Like most resorts on the east coast, Filey is protected from the worst of the westerly wind and rain by the Pennines. However, when the wind does blow from the north or east, it can be perishing cold!
The weather can change extremely rapidly here, so we would advise keeping a watch on the sky and checking out our daily forecast before you decide whether to go out in your shorts and a sun hat, or winter woollies and a brolly!