The weather in June tends to be somewhat unpredictable, but take as a guideline that the daily mean temperature is approx. 9°C. (The record high is 29.5°C, while the record low is -2.5°C…). Average precipitation in June is 59 mm, and typically there will be 218 h of sunshine in June – thanks to the midnight sun!
To summarise – warm, windproof, and waterproof clothing might come in handy, but we’ll keep our fingers crossed for warm days!
If you’re planning to stay a few extra days, or you would simply like to know what to do as a tourist in Tromsø, please have a look at the Visit Tromsø web site.