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Weather forecast

Weather forecast for the next 24 hours

Northwesterly winds 5-13 m/s, strongest along the southwest and west coasts, but lighter variable winds in the east. Partly cloudy with isolated showers in the east, but otherwise cloudy with light rain or drizzle. Temperatures between 7 and 14 deg. C, warmest in the east.
Easterly or variable winds 3-8 m/s tomorrow. Mostly cloudy with isolated showers in various places, but light rain in the far south later in the day. Somewhat milder.
Forecast made 17.09.2026 10:14

If the map and the text forecast differs, then the text forecast applies

Station forecasts

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Whole country

Maximum wind in Iceland today

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Maximum and minimum temperature in Iceland today

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Maximum precipitation in Iceland today

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Maximum wind in Iceland during the last hour

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Maximum and minimum temperature in Iceland during the last hour

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Maximum precipitation in Iceland during the last hour

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Preliminary results

Observations from weather station

Find observ. from station

Earthquakes

Earthquakes during last 48 hours. at 17 Sep 10:25 GMT

Preliminary results

Biggest earthquakes during the last 48 hours

Size	Time	Quality	Location
4.3	15 Sep 14:18:19	Checked	14.1 km S of Eiríksjökull
4.2	15 Sep 14:18:19	Checked	12.3 km S of Eiríksjökull
3.4	17 Sep 01:32:53	Checked	2.4 km W of Geirfugladrangur

Specialist remark

An earthquake swarm began around midnight on September 16th. Most earthquakes are located around 30 km SSW of Reykjanestá. Around 100 earthquakes have been detected, most are below M2 but some are between M3 and M3.5. Earthquake swarms are common on the Reykjanes Ridge.

On the 15th of September at 2:18 pm an earthquake of M4.2 was detected in western Langjökull glacier. Few aftershocks have followed but no tremor. The event was felt widely in Southwest Iceland. Last time an event of similar magnitude was detected in the area in June 2022. Langjökull glacier is located within the western volcanic rift zone and seismic activity is rather common there.
Written by a specialist at 17 Sep 04:55 GMT

Week overview -

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

Larger map of earthquakes

Hydrology

Average flow and temperature last 24 hours

River	Place	Flow	Water temperature

Remarks of a specialist

Water levels have risen in rivers across the country due to considerable precipitation in the past day. Motorists traveling on mountain roads are urged to exercise caution, as unbridged river crossings might have seen a significant increase in water levels and become impassable.

Due to malfunction we have turned off the service publishing hydrological data on the map. Instead see the data using our Rauntímavöktunarkerfi.
Written by a specialist at 17 Sep 08:47 GMT

More hydrological information

Measurement map

News

Situation on the Reykjanes Peninsula - 15.9.2026

Deformation measurements continue to show uplift in the Svartsengi area. Over the past three months, the land has risen by approximately five centimetres. The uplift indicates that pressure continues to build at a depth of several kilometres. As long as uplift continues, the most likely scenario remains that a magma intrusion will propagate from Svartsengi into the Sundhnúkur crater row. Read more

Increased electrical conductivity and gas pollution at Múlakvísl - 1.9.2026

The glacial outburst flood in Múlakvísl, which began on 18 August, now appears to be subsiding. Both conductivity and discharge have decreased since yesterday, and currently there is no gas pollution being detected in the area Read more

Measurements show that uplift at Askja has ceased - 14.8.2026

Measurements by the lake in Askja. Fieldwork in the area was completed this week, and the results indicate that the uplift episode that began in 2021 has ended.

Increased hazard due to changing conditions at the margin of Sólheimajökull glacier - 22.7.2026

Recent changes at the terminus of Sólheimajökull call for increased caution. Unstable glacier ice and rockfall from the surrounding slopes may pose a risk to people visiting the area.

Ground uplift and magma accumulation continue beneath Svartsengi - 9.6.2026

Uplift and magma accumulation continue at Svartsengi, and the trend remains stable. The latest model calculations indicate that around 27.5 million cubic metres of magma have accumulated beneath Svartsengi since around mid-July last year. Read more

The Icelandic Met Office receives international grant to strengthen aviation safety in relation to volcanic hazards - 3.6.2026

In October 2025, the Icelandic Meteorological Office (IMO) received a grant of ISK 147 million from the International Civil Aviation Organization (ICAO) for four new development projects in the fields of volcanic hazards and aviation safety. The projects involve, among other things, the development of new measurement methods, automatic analysis of eruption plumes, coordination of responses among European volcano observatories, and research into the effects of sulphur dioxide (SO₂) on aviation.

Older news

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.