Reykjahlíð Temperature by Month
The average annual maximum temperature in Reykjahlíð, North Iceland, Iceland is 6°C (43°F), with daytime highs ranging from 1°C (34°F) in December to 15°C (59°F) in July. This page covers monthly averages, day-night differences, and how Reykjahlíð compares to cities worldwide.
Reykjahlíð Monthly Temperatures
Visitors to Reykjahlíð will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 7°C (45°F) in July to -6°C (21°F) in December.
The chart below illustrates the average maximum day and minimum night temperatures in Reykjahlíð by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 154 hours of sunshine.
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 Reykjahlíð Temperatures: 1976-2026
Browse day-by-day temperature records for Reykjahlíð spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Reykjahlíð 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
Reykjahlíð vs World: Temperature Compared
Reykjahlíð's average annual maximum temperature is 6°C (43°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Reykjahlíð?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Reykjahlíð, December is the coolest month, with average highs of 1°C (34°F) and humidity around 79% — considered high. For a full picture, see our humidity page.
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 Reykjahlíð's weather — including monthly rainfall, sunshine hours, and humidity — visit our Reykjahlíð climate page.
