Ísafjörður Temperature by Month
Ísafjörður in Westfjords, Iceland sees moderate seasonal temperature shifts, with daytime highs between 1°C (34°F) in February and 12°C (54°F) in July, averaging 5°C (41°F) annually. Explore the full monthly breakdown below.
Ísafjörður Monthly Temperatures
The climate in Ísafjörður experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 7°C (45°F) in July to -4°C (25°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Ísafjörður by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Ísafjörður Temperatures: 1976-2026
Browse day-by-day temperature records for Ísafjörður spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Ísafjörður vs Iceland
The map below shows the annual temperature across Iceland. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Ísafjörður vs World: Temperature Compared
Ísafjörður's average annual maximum temperature is 5°C (41°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.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Ísafjörður's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ísafjörður climate page.
