Bromma Temperature by Month
The average annual maximum temperature in Bromma, Buskerud, Norway is 7°C (45°F), with daytime highs ranging from -4°C (25°F) in December to 19°C (66°F) in July. This page covers monthly averages, day-night differences, and how Bromma compares to cities worldwide.
Bromma Monthly Temperatures
In Bromma, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 9°C (48°F) in July to -10°C (14°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Bromma by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Bromma vs Norway
The map below shows the annual temperature across Norway. You can also select individual months if you want to compare a specific time of year.
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Bromma vs World: Temperature Compared
Bromma's average annual maximum temperature is 7°C (45°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Bromma's weather — including monthly rainfall, sunshine hours, and humidity — visit our Bromma climate page.
