Winters in Walthamstow are typically mild and frosty, with temperatures ranging from -5°C to 13°C on average, leading to chilly mornings and warmer afternoons. As spring approaches, temperatures gradually rise, with March marking a significant milestone as it often sees the first warm days of the year, reaching up to 23°C. Summers are warm and pleasant, with June and July being the hottest months, averaging highs around 27°C and 30°C respectively. Autumn brings a return to milder weather, with temperatures cooling down to average highs of around 12°C in October before dropping again as winter sets in.