Kokkola's winters are cold and snowy, with temperatures often dropping below -30°C in January and February. Spring arrives slowly, with March bringing some warmer days but still plenty of chilly nights. As April and May approach, the temperature range expands significantly, allowing for sunny days and occasional warmth. Summer brings a welcome respite from the cold, with June to August typically featuring warm to hot temperatures, although nights can still be cool. Autumn returns the chill, with September to November experiencing a mix of mild and frosty days before winter's return.