Winters in Carteret are chilly and variable, with temperatures often below freezing but occasionally rising into the low teens. Spring arrives slowly, with temperatures gradually warming over March and April before reaching a peak of up to 31 degrees Celsius in April. Summers are mild to warm, with July and August averaging highs around 25-26 degrees Celsius. Autumn is similar to spring, with temperatures cooling down gradually from September to November, before dropping below freezing again in winter.