Northerly 8-15 m/s, strongest wind in the east. Showers of rain, sleet or snow in North- and East-Iceland, but mostly fair in the south part. Temperature 2 to 9 deg. C during daytime, mildest in the far south, but widely a chance of frost overnight.
Forecast made 18.09.2025 03:49
If the map and the text forecast differs, then the text forecast applies
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Preliminary results
Size | Time | Quality | Location |
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3.6 | 18 Sep 00:04:24 | Checked | 10.4 km E of Hamarinn |
2.6 | 17 Sep 02:08:23 | Checked | 6.3 km SW of Geirfugladrangur |
2.3 | 16 Sep 11:44:34 | Checked | 5.0 km W of Reykjanestá |
At 00:04 on september 18th an earthquake of magnitude 3.6 was recorded near Skaftárketill vestari in NW Vatnajökull glacier. One small aftershock was recorded. On september 11th an earthquake of magnitude 3.1 was recorded in the same location.
Written by a specialist at 18 Sep 02:02 GMT
Earthquake activity throughout the country is described in a weekly summary that is written by a Natural Hazard Specialist. The weekly summary is published on the web every Tuesday. It covers the activity of the previous week in all seismic areas and volcanic systems in the country. If earthquake swarms are ongoing or significant events such as larger earthquakes have occurred during the week, they are specifically discussed. More
River | Place | Flow | Water temperature |
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Indication of a small geothermal water leak in Múlakvísl
Felt reports of smell of H2S have been sent to IMO. We ask people to be careful at the source of the river and near river channels, because of gas pollution in the area.
Due to malfunction we have turned off the service publishing hydrological data on the map. Instead see the data using our Real-time monitoring system.
Written by a specialist at 17 Sep 05:45 GMT
The avalanche bulletin is at a regional scale. It does not necessarily represent avalanche danger in urban areas.
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Southwest corner
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Northern Westfjords
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Tröllaskagi
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Eyjafjörður (experimental)
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Eastfjords
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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.
Read moreBy 11:00, more than 450 lightning strikes had been recorded since the activity began.
Read moreUpdated 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.
Read moreThe 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
Read moreIn 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.
Read moreHARMONIE 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.
Read more