Hvolsvöllur Temperature by Month
The average annual maximum temperature in Hvolsvöllur, South Iceland, Iceland is 9°C (48°F), with daytime highs ranging from 4°C (39°F) in February to 16°C (61°F) in July. This page covers monthly averages, day-night differences, and how Hvolsvöllur compares to cities worldwide.
Hvolsvöllur Monthly Temperatures
With significant temperature fluctuations, Hvolsvöllur enjoys distinct seasons year-round. Nighttime lows range from 9°C (48°F) in July to -2°C (28°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Hvolsvöllur 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 Hvolsvöllur Temperatures: 1976-2026
Browse day-by-day temperature records for Hvolsvöllur spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Hvolsvöllur 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
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moderate
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Hvolsvöllur vs World: Temperature Compared
Hvolsvöllur's average annual maximum temperature is 9°C (48°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Hvolsvöllur's weather — including monthly rainfall, sunshine hours, and humidity — visit our Hvolsvöllur climate page.
