Bristol's winters are chilly and unpredictable, with temperatures often dropping below freezing in January and February. As spring approaches, temperatures gradually rise, with March and April experiencing mild days but still quite cool nights. Summer months bring warm weather, with June and July averaging highs around 28-31°C, while August and September remain pleasant but slightly cooler. Autumn is a time of gentle decline, with October and November temperatures dropping back down to averages around 10-12°C. Winters return in December, with temperatures fluctuating between freezing and mild days.