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Weather forecast

Weather forecast for the next 24 hours

Southerly 3-10 m/s and rainshowers, but dry in the northeast parts.

Becoming east and northeast 5-13 tomorrow with rain, but slower wind and mostly dry in the west until late in the day. Decreasing precipitation in Northeast- and East-Iceland by afternoon. Temperature 8 to 14 deg. C.

Forecast made 09.09.2025 22:10

Forecaster's remarks

Considerable rain in the Eastfjords tomorrow morning. Increased water levels in rivers.
Prepared by the meteorologist on duty 09.09.2025 22:10

Precipitation Temperature Wind

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News

Considerable uncertainty about the timing of the next possible eruption on the Sundhnúkur crater row - 4.9.2025

Uplift and magma accumulation beneath Svartsengi continue at a steady pace. Around 6–7 million cubic meters of magma are estimated to have built up since the eruption that began on 16 July. Model calculations suggest that once about 12 million cubic meters have accumulated, the likelihood of a new event will increase. At the current rate, this could happen in the latter half of September. A new hazard assessment is valid until 16 September, with continued hazard in and around the new lava field. Read more

The ninth eruption on the Sundhnúkur crater row has ended - 5.8.2025

Updated 5 August

The volcanic eruption that began on 16 July on the Sundhnúkur crater row is now officially over, and a new hazard map has been issued. Despite the end of the eruption, life-threatening conditions remain in the area due to unstable lava and the potential for gas pollution. Uplift has resumed, and magma continues to accumulate beneath Svartsengi.

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Heavy thunder and lightning in Northwest Iceland and the Westfjords - 16.7.2025

By 11:00, more than 450 lightning strikes had been recorded since the activity began.

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Eruption ongoing on the Sundhnúkur crater row - 15.7.2025

Updated at 11:30, 20 July

The eruption at the Sundhnúkur crater row has caused significant air pollution in recent days, with volcanic haze spreading widely but not fully captured by the national air quality monitoring network. The Icelandic Meteorological Office forecasts gas pollution in South and West Iceland over the coming days, with light winds contributing to persistent haze, especially in the southwest. Vulnerable groups are advised to limit time outdoors if they experience discomfort, and practical guidance for reducing indoor exposure is provided.

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A jökulhlaup from Mýrdalsjökull into the rivers Leirá Syðri and Skálm - 11.7.2025

The flood is subsiding, and water level and conductivity are now approaching normal values in Skálm.

The flood reached its peak the night before last. IMO´s specialists continue to observe the area

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Analysis: Climate change made the May heatwave more likely and more intense - 11.6.2025

In May 2025, an unusually intense heatwave struck Iceland and eastern Greenland, breaking numerous temperature records. On 15 May, Iceland's national May temperature record was set at 26.6°C at Egilsstaðir Airport, with several locations recording temperatures up to 13°C above the monthly average.

A new international analysis by the World Weather Attribution group shows that human-induced climate change made this heatwave around 40 times more likely and, on average, three degrees Celsius hotter than it would have been without global warming. The study also suggests that if global temperatures rise by 2.6°C, such heatwaves could become at least twice as frequent and two degrees hotter.

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Short articles

HARMONIE - numerical weather prediction model 

HARMONIE is a numerical weather prediction model (NWP) that is non-hydrostatic and convection-permitting. It is operated at 2.5 km horizontal resolution over a domain that covers Iceland and the surrounding seas. At this resolution it is possible to simulate explicitly some processes that are important for clouds and precipitation as well as meteorological phenomena related to up- and downdrafts. In order to simulate the interaction between the atmosphere and the surface, the model takes into account different types of land surface as well as processes in and at the surface.

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