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Weather forecast

Weather forecast for the next 24 hours

Decreasing northwesterly winds in the northeast, with precipitation clearing this evening. A northerly breeze and fair weather in the south and west. Frost developing widely this evening and overnight.

Light southeasterly or variable winds tomorrow and mostly fair, but isolated showers along the south coast. Southerly winds gradually increasing with showers in the far west tomorrow evening. Temperatures between 3 and 9 deg. C during the day.
Forecast made 05.10.2026 18:29

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 05 Oct 21:50 GMT

Preliminary results

Biggest earthquakes during the last 48 hours

Size	Time	Quality	Location
4.7	05 Oct 17:28:20	Checked	7.4 km ESE of Bárðarbunga
3.8	04 Oct 13:13:10	Checked	33.7 km WNW of Grímsey
3.4	04 Oct 00:40:16	Checked	7.3 km S of Helgafell

Specialist remark

A M4.7 earthquake took place in Bárðarbunga at 17:28 today. An earthquake of this magnitude last took place on Jule 28 and they happen regularly in the Bárðarbunga caldera.

A magnitude 3.8 occurred just NW of Grimsey at 13:13 on October 4th. Similar earthquakes have been observed in the area in the past few days, but earthquakes there are quite common.

On October 4th at 00:40 an M3.4 earthquake was detected in Brennisteinsfjöll, near Reykjavík. The earthquake was felt in the SW-corner of Iceland. Around 15 smaller aftershocks have been detected. Similar sized earthquake was last detected in February 2024, but earthquakes are common in this area.
Written by a specialist at 05 Oct 18:04 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

Elevated electrical conductivity has been observed in the Múlakvísl River over the past few days, and gas pollution has also been detected near Láguhvolar. Travelers are urged to exercise caution and leave the area if they experience symptoms that could indicate exposure to gas.

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 05 Oct 09:26 GMT

More hydrological information

Measurement map

News

New risk assessment for people's safety in Grindavík available on the municipality's website - 1.10.2026

The findings from the first phase of a revised risk assessment for people’s safety in Grindavík are now available. The assessment covers built-up areas within the protective barriers in Grindavík. The Department of Civil Protection and Emergency Management of the National Commissioner of the Icelandic Police is responsible for preparing and publishing the assessment in cooperation with Grindavík’s Civil Protection Committee. Read more

Situation on the Reykjanes Peninsula - 30.9.2026

Slow ground uplift continues at Svartsengi. Seismic activity remains low. A new magma intrusion, potentially leading to an eruption along the Sundhnúkur crater row, remains the most likely scenario. The updated hazard assessment takes account of fracture repairs in Grindavík. 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

Older news

Short articles

Past temperature conditions in Iceland

This has been a period of a general rise in temperatures, interrupted by two cold periods. The late 19th century cold period was colder than a corresponding period in mid to late 20th century.