It is 9.0°C (48.2°F) at 17:00 local on Friday 2 October.
Commentary: Not cold exactly. Just increasingly persuasive.
We hold a record for 2 months here so far, September and October. The rest of the year fills in as this station reports through it.
At 08:00 it was 8.0°C. By 13:00 it was 9.0°C. The night never stood a chance.
New facts every day. Report an error.
The highest this site has recorded here. Source: Our own observations, 8 days.
The lowest this site has recorded here. Source: Our own observations, 8 days.
These are not official records. They are the highest and lowest readings this site has stored for Grímsey Arpt since September 2026, across 8 days we hold a reading for. Official climatological records are adjudicated by national meteorological services and by the WMO.
| Month | High | Low | Mean | Days | Readings |
|---|---|---|---|---|---|
| October 2026 | 13.0°C | 8.0°C | 10.1°C | 2 | 18 |
| September 2026 | 10.0°C | 5.0°C | 6.9°C | 6 | 58 |
Means are of the readings we stored, weighted by how often this station reported, so they are not daily averages and not climate normals.
We have readings for 8 of the 9 days since we started storing this station on 25 September 2026.
Grímsey Arpt (BIGR) is a METAR weather station in Iceland, 35 m above sea level.
We have kept a daily record here for 8 of the 9 days since 25 September 2026, from 76 observations.
The same record at three widths, picking up where the last 24 hours above leaves off. Each period is summarised from the grain that suits it, so nothing here is one reading repeated thousands of times into the page.
Over the last week we have readings for 6 days here, running from 5.0°C to 13.0°C, a spread of 8.0°C.
Highest 13.0°C, lowest 5.0°C, mean 7.7°C. 8 days recorded from 76 readings.
Typically 10 readings a day.
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-10-02 | 9.0°C | 13:00 UTC | 8.0°C | 08:00 UTC |
| 2026-10-01 | 13.0°C | 13:49 UTC | 9.0°C | 08:00 UTC |
| 2026-09-30 | 9.0°C | 16:49 UTC | 8.0°C | 12:00 UTC |
| 2026-09-29 | 10.0°C | 17:00 UTC | 6.0°C |
| Station | Away | Height | High | Low | vs here |
|---|---|---|---|---|---|
| Grimsey |
It is on a run of 8 days now.
This station lies about 7,400 km north of the equator. It lies about 0 km short of the Arctic Circle.






























Land surface temperature for 2026-10-02, from NASA GIBS. This is the temperature of the ground seen from orbit, not the air, and it is never ranked against air readings. Cloud hides the ground, so gaps are unread rather than guessed.
View more on Google Maps66.5480°N, 18.0200°W
13.0°C (55.4°F) on Thursday, 1 October 2026. That is the highest this site has recorded at this station. It is not an officially certified record unless a meteorological authority has recognised it.
Our own observations
5.0°C (41.0°F) on Monday, 28 September 2026. That is the lowest this site has recorded at this station.
Our own observations
9.0°C (48.2°F), measured at 17:00 local on Friday 2 October.
Live reading from the station, after our quality checks
Readings here arrive through NOAA METAR. METAR is the routine aerodrome weather report, issued for aviation, typically every 30 or 60 minutes and more often when conditions change. It updates far more frequently than a synoptic report, which is why these pages have a usable chart.
| Figure | Source | Type |
|---|---|---|
| Latest reading, today so far | NOAA Aviation Weather Center (METAR) and NOAA NWS WMO bulletins (SYNOP) | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |
Every reading on this page has passed the checks below. A reading that fails any of them is stored as refused and can never be ranked, shown as a record, or counted in a daily high or low.
324 readings from this station have been refused in the 8 days since readings began being logged against individual stations.
A reading with no usable latitude and longitude is discarded. It cannot be ranked, mapped, or compared with its neighbours, and a temperature with no place is not an answer to which place is hottest.
Some feeds fill an unknown position with a stand-in value such as 99.99 degrees or an elevation of 9999 m. Those are not coordinates. They are caught separately from a missing position because a station placed at a fake point has no neighbours, so the neighbour check below can never see anything wrong with it.
SYNOP arrives as files that are only re-read when they change. A file that has stopped being updated is set aside whole, before any reading inside it is considered.
Different networks get different windows, because they report at different rates: 2 hours for METAR, which transmits continuously, and 9 hours for SYNOP, which reports at 00, 06, 12 and 18 UTC. A single rule would have discarded the entire synoptic network, including every station in Antarctica.
Observations stored by HottestAndColdest. A day we were not yet tracking is shown as an empty square, and says nothing about whether the station reported.
The last 7 days we recorded: 7 days recorded, 65 readings. From the daily highs and lows we recorded.
The last 30 days we recorded: 8 days recorded, 76 readings. From the daily highs and lows we recorded.
The last 12 months: 8 days recorded, 76 readings. From our monthly totals.
| 08:00 UTC |
| 2026-09-28 | 6.0°C | 13:20 UTC | 5.0°C | 10:00 UTC |
| 2026-09-27 | 7.0°C | 15:00 UTC | 6.0°C | 16:00 UTC |
| 2026-09-26 | 7.0°C | 14:00 UTC | 6.0°C | 10:00 UTC |
| 2026-09-25 | 8.0°C | 10:00 UTC | 7.0°C | 13:00 UTC |
| 1.6 km |
| none |
| none |
| Huasij ArptIceland | 71.6 km | none | none |
| RaufarhofnIceland | 92.8 km | 8.8°C | 4.7°C | −0.2°C |
| Akureyri ArptIceland | 99.6 km | 10.0°C | 7.0°C | +1.0°C |
| Þórshöfn ArptIceland | 125.5 km | none | none |
| GrimsstadirIceland | 133.5 km | none | none |
Anything above 56.8 °C or below -95 °C is refused. The ceiling sits just above the highest reading WMO accepts, so a genuine new world record would be refused here too: a record needs adjudicating, not a live tile on a home page. The floor is deliberately further from its record, because the Antarctic plateau is thinly instrumented and a real extreme there has far less around it to corroborate it.
A change of more than 15 °C from this station's previous reading within 60 minutes is treated as a failing sensor. The limit is set from measured data: real weather reaches about 12 °C in an hour at desert sunrise or under a thunderstorm outflow, and the faults found were 20 °C and more.
A reading more than 12 °C from the median of other stations within 150 km is refused. It needs at least 3 neighbours to run at all, so it protects dense networks and can say nothing about an isolated station, which is why the other checks above have to stand on their own.