This report describes the typical weather at the Tromsø Airport (Tromsø, Norway) weather station over the course of an average June. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Tromsø has a humid subarctic continental climate with cool summers and no dry season. The area within 25 mi of this station is covered by tundra (47%), oceans and seas (36%), and forests (14%).
The month of June is characterized by rising daily high temperatures, with daily highs increasing from 50°F to 57°F over the course of the month, exceeding 67°F or dropping below 42°F only one day in ten.
Over the course of June, the length of the day is essentially constant.
Due to its extreme latitude, Tromsø experiences polar day during summer. During this period of time, the Sun remains continuously above the horizon for a prolonged period of time.
This station is in polar day during all of June, meaning the Sun is continuously above the horizon.
Daylight savings time is observed in 2012 but it neither starts nor ends in June, so the entire month is in daylight time.
The median cloud cover is 87% (mostly cloudy) and does not vary substantially over the course of the month.
On June 15, a representative day, the sky is clear or mostly clear 19% of the time, partly cloudy 19% of the time, and mostly cloudy or overcast 53% of the time.
The average probability that some form of precipitation will be observed in a given day is 66%, with little variation over the course of the month.
Throughout June, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 64% of those days with precipitation. It is most likely around June 28, when it is observed during 45% of all days.
Light rain is the most severe precipitation observed during 21% of those days with precipitation. It is most likely around June 19, when it is observed during 15% of all days.
The likelihood of snow falling is highest around June 1, occurring in 12% of days.
Either snow rarely accumulates at this location in June or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 55% (mildly humid) to 90% (very humid) over the course of a typical June, rarely dropping below 39% (comfortable) and reaching as high as 100% (very humid).
The air is driest around June 1, at which time the relative humidity drops below 64% (mildly humid) three days out of four; it is most humid around June 30, rising above 85% (humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical June, the dew point typically varies from 32°F (dry) to 47°F (dry) and is rarely below 25°F (dry) or above 53°F (very comfortable).
Over the course of June typical wind speeds vary from 1 mph to 15 mph (light air to moderate breeze), rarely exceeding 24 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around June 3, at which time the average daily maximum wind speed is 15 mph (moderate breeze).
The lowest average wind speed of 8 mph (gentle breeze) occurs around June 30, at which time the average daily maximum wind speed is 15 mph (moderate breeze).