Weather in Grundarhverfi

14-day forecast · updated today, Thursday, October 29, at 1:45 am (GMT)

Now · overcast 45 °F

Feels like: 31 °F
Low / high: 41 / 51 °F
Rain: 100% · 0.11 in
Wind: 24 mph E

↘ 29.39 inHg · falling

Today in Grundarhverfi: light rain, 41 °F to 51 °F, with a 100% chance of rain (0.11 in) and a strong breeze from the east (24 mph). Tomorrow, light showers, 40 °F to 43 °F and a 87% chance of rain. The warmest day of the week is Thursday 29, at 51 °F.

Measured now at the airport

Reykjavik (BIRK), 8.3 mi away · 45 min ago

Visibility6.2 mi or more

WeatherNothing to note

Temperature45 °F

Wind21 mph from the east

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

51° 41°
Today
43° 40°
Fri 30
42° 38°
Sat 31
49° 38°
Sun 1
49° 47°
Mon 2
50° 41°
Tue 3
46° 40°
Wed 4
46° 43°
Thu 5
47° 40°
Fri 6
40° 35°
Sat 7
40° 36°
Sun 8
40° 38°
Mon 9
44° 40°
Tue 10
48° 45°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light rain	41 / 51 °F	100% · 0.11 in	34 mph ESE	4.7 ft	7:59 am · 8:22 pm	ICON-EU
Fri 30	Light showers	40 / 43 °F	87% · 0.06 in	15 mph SE	6.1 ft	8:47 am · 9:13 pm	ICON-EU
Sat 31	Light showers	38 / 42 °F	93% · 0.12 in	11 mph SSE	6.3 ft	9:44 am · 10:18 pm	ICON-EU
Sun 1	Light showers	38 / 49 °F	92% · 0.20 in	10 mph ESE	5.6 ft	10:58 am · 11:45 pm	ICON-EU
Mon 2	Light rain	47 / 49 °F	63% · 0.17 in	35 mph SE	5.0 ft	12:23 pm	ICON-EU + ECMWF
Tue 3	Heavy drizzle	41 / 50 °F	78% · 0.42 in	19 mph S	5.9 ft	1:16 am · 1:43 pm	ECMWF
Wed 4	Heavy drizzle	40 / 46 °F	45% · 0.35 in	18 mph S	5.8 ft	2:34 am · 2:51 pm	ECMWF
Thu 5	Heavy drizzle	43 / 46 °F	70% · 0.56 in	15 mph SSE	6.0 ft	3:35 am · 3:47 pm	ECMWF
Fri 6	Heavy drizzle	40 / 47 °F	69% · 0.25 in	10 mph NW	3.7 ft	4:22 am · 4:33 pm	ECMWF
Sat 7	Overcast	35 / 40 °F	52%	9 mph N	3.2 ft	5:01 am · 5:13 pm	ECMWF
Sun 8	Drizzle	36 / 40 °F	42% · 0.44 in	15 mph S	8.6 ft	5:36 am · 5:48 pm	ECMWF
Mon 9	Drizzle	38 / 40 °F	47% · 0.22 in	13 mph SSW	7.8 ft	6:09 am · 6:22 pm	ECMWF
Tue 10	Drizzle	40 / 44 °F	53% · 0.28 in	18 mph SE	5.6 ft	6:40 am · 6:54 pm	ECMWF
Wed 11	Drizzle	45 / 48 °F	51% · 0.22 in	23 mph ESE	4.2 ft	7:11 am · 7:25 pm	ECMWF

Each hour comes from the best model for this spot: ICON-EU until Monday 2 7:00 pm; then ECMWF until Thursday 12 3:00 pm; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Overcast	Light rain	Light rain	Light rain	Overcast	Partly cloudy	Mainly clear	Partly cloudy
Temperature	43°	46°	47°	51°	47°	46°	42°	41°
Chance of rain	0%	49%	98%	100%	84%	14%	16%	39%
Rain	0.00 in	0.00 in	0.00 in	0.01 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	22 E	26 E	34 E	27 SE	13 SE	15 SSE	12 SE	11 ESE
Humidity	63%	61%	70%	85%	76%	70%	82%	88%
UV	0	0	0	0	0	0	0	0
Model	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU

Do the models agree?

Low confidence

They don't agree on wind today: it may change, so check again closer to the day.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	48°	41°	41°	48°	48°	50°	46°
AIFS	50°	45°	44°	50°	51°	51°	46°
GFS	47°	44°	44°	51°	50°	49°	49°
ICON	51°	44°	44°	49°	50°	50°	46°
ARPEGE	51°	45°	44°	49°	—	—	—
ICON-EU	51°	43°	42°	49°	—	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.28 in	0.47 in	0.28 in	0.38 in	0.20 in	0.42 in	0.35 in
AIFS	0.28 in	0.29 in	0.32 in	0.36 in	0.45 in	0.69 in	0.12 in
GFS	0.20 in	0.52 in	0.89 in	0.41 in	0.07 in	0.20 in	0.17 in
ICON	0.13 in	0	0	0.07 in	0.27 in	0.40 in	0
ARPEGE	0.26 in	0.00 in	0.05 in	1.03 in	—	—	—
ICON-EU	0.11 in	0.06 in	0.12 in	0.20 in	—	—	—
Confidence	high	medium	medium	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	2446	1121	1324	1537	2238	1942	1833
AIFS	23	13	12	13	21	19	14
GFS	2049	1727	2028	1932	1930	2743	1217
ICON	3454	1828	1726	1523	3659	2947	1116
ARPEGE	1944	1629	1325	2440	—	—	—
ICON-EU	3450	1519	1118	1012	—	—	—
Confidence	low	high	high	medium	low	medium	medium

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	100%	87%	93%	92%	63%	78%	45%
GFS (GEFS, 31 scenarios)	100%	78%	96%	81%	46%	59%	49%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: warmer and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Well above +10.1 °F	Above +81%	—
Nov 9 – Nov 15Nov 9–Nov 15	Above +3.2 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.7 °F	A bit below −30%	30° / 26°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +0.9 °F	Normal	29° / 24°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.1 °F	Normal	28° / 24°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.1 °F	Normal
December	Normal +0.5 °F	Normal
January	Normal +0.7 °F	Normal
February	Normal −0.2 °F	Normal
March	Normal +0.4 °F	Normal

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Grundarhverfi climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Grundarhverfi is from June to July: highs of 54 °F to 57 °F, about 10 rainy days a month and 7 hours of sunshine a day.

39° 31°

JanJ
38° 29°

FebF
39° 31°

MarM
44° 35°

AprA
48° 39°

MayM
54° 45°

JunJ
57° 48°

JulJ
56° 48°

AugA
52° 44°

SepS
46° 38°

OctO
42° 34°

NovN
39° 31°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	39°	31°	3.80 in	17	1.1	41°	6.9 ft
FebruaryFeb	38°	29°	3.68 in	16	1.9	40°	7.0 ft
MarchMar	39°	31°	3.40 in	16	3.7	40°	6.5 ft
AprilApr	44°	35°	2.20 in	13	5.1	41°	5.0 ft
MayMay	48°	39°	2.15 in	11	7.6	44°	3.5 ft
JuneJun	54°	45°	1.79 in	10	7.3	49°	2.8 ft
JulyJul	57°	48°	2.40 in	11	6.6	52°	2.6 ft
AugustAug	56°	48°	2.86 in	13	5.5	52°	2.8 ft
SeptemberSep	52°	44°	3.59 in	15	2.8	50°	4.4 ft
OctoberOct	46°	38°	3.38 in	14	2.8	47°	4.7 ft
NovemberNov	42°	34°	3.44 in	15	1.5	44°	5.6 ft
DecemberDec	39°	31°	3.65 in	16	1.4	42°	6.3 ft

Month	Water	Waves
Jan	41°	6.9 ft
Feb	40°	7.0 ft
Mar	40°	6.5 ft
Apr	41°	5.0 ft
May	44°	3.5 ft
Jun	49°	2.8 ft
Jul	52°	2.6 ft
Aug	52°	2.8 ft
Sep	50°	4.4 ft
Oct	47°	4.7 ft
Nov	44°	5.6 ft
Dec	42°	6.3 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 36.34 in of rain on about 167 days and about 1,450 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now45 °Ffeels like 31 °F

Tomorrow40 / 43 °F

It's 45 °F now (feels like 31 °F). Today, 41 °F to 51 °F; tomorrow, 40 °F to 43 °F.

Chance of rain

Today 100% 0.11 in
Fri 30 87% 0.06 in
Sat 31 93% 0.12 in
Sun 1 92% 0.20 in
Mon 2 63% 0.17 in
Tue 3 78% 0.42 in
Wed 4 45% 0.35 in

Today the chance of rain reaches 100%, with 0.11 in in total. The next day with likely rain is Friday 30: 87% and 0.06 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.15 in; last 7 days, 0.27 in.

Humidity and dew point

Humidity60%

Dew point32 °F

Humidity is 60% now and the dew point is 32 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now25 migood

Clouds100%

Visibility is good now (25 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak0low

Fri 30: 0 · Sat 31: 0 · Sun 1: 0

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

29.0029.5030.00 29.93

Falling now (−0.08 inHg in 3 hours). Over the next 48 hours: +0.55 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 19

PollenNoneToday, at most none.

Pollen: Copernicus CAMS model (a rough guide, not a pollen trap). Levels use each type's usual thresholds.

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	37 / 42 °F	0.03 in	14 mph NE
Tue 27	Drizzle	36 / 44 °F	0.11 in	5 mph NNW
Mon 26	Light drizzle	35 / 38 °F	0.04 in	8 mph E
Sun 25	Light drizzle	35 / 38 °F	0.02 in	11 mph NNW
Sat 24	Overcast	31 / 37 °F	0	8 mph NNE
Fri 23	Overcast	33 / 40 °F	0	7 mph ESE
Thu 22	Drizzle	34 / 40 °F	0.08 in	10 mph E

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Partly cloudy	33 / 41 °F	0	9 mph E
Tue 20	Light drizzle	35 / 42 °F	0.11 in	9 mph SSE
Mon 19	Drizzle	41 / 46 °F	0.43 in	24 mph SSW
Sun 18	Light rain	44 / 51 °F	1.03 in	29 mph S
Sat 17	Light rain	45 / 51 °F	0.69 in	29 mph SSE
Fri 16	Heavy drizzle	43 / 47 °F	0.24 in	15 mph SW
Thu 15	Heavy drizzle	35 / 42 °F	0.19 in	26 mph NNW
Wed 14	Rain	37 / 46 °F	0.85 in	26 mph NNE
Tue 13	Light drizzle	40 / 46 °F	0.10 in	13 mph SE
Mon 12	Light rain	44 / 48 °F	0.58 in	27 mph SE
Sun 11	Light drizzle	41 / 46 °F	0.02 in	23 mph E
Sat 10	Drizzle	41 / 46 °F	0.15 in	16 mph W
Fri 9	Light drizzle	40 / 47 °F	0.11 in	14 mph WNW
Thu 8	Heavy drizzle	40 / 47 °F	0.56 in	23 mph ESE
Wed 7	Light drizzle	39 / 46 °F	0.06 in	10 mph S
Tue 6	Overcast	31 / 46 °F	0	6 mph ESE
Mon 5	Light drizzle	36 / 43 °F	0.01 in	12 mph NNE
Sun 4	Drizzle	44 / 49 °F	0.26 in	24 mph WNW
Sat 3	Light rain	47 / 51 °F	0.77 in	16 mph SSE
Fri 2	Heavy drizzle	46 / 49 °F	0.28 in	13 mph SSE
Thu 1	Heavy drizzle	49 / 53 °F	0.42 in	15 mph SE
Wed 30	Light rain	52 / 58 °F	0.42 in	16 mph E
Tue 29	Rain	44 / 54 °F	0.90 in	16 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in GrundarhverfiQuestions

What's the weather like today in Grundarhverfi?

Light rain, from 41 °F to 51 °F, with a strong breeze from the east (24 mph) and a 100% chance of rain.

Will it rain tomorrow in Grundarhverfi?

On Friday 30 the chance of rain is 87% (0.06 in): light showers.

How warm will it be this week?

Between a low of 38 °F and a high of 51 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 0 (low). No special protection needed.

Is the pressure rising or falling?

It's 29.39 inHg and falling: +0.40 inHg over the last 24 hours.

When is the best time to visit Grundarhverfi?

The best time to visit Grundarhverfi is from June to July: highs of 54 °F to 57 °F, about 10 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Grundarhverfi in October?

In October, Grundarhverfi normally sees highs of 46 °F and lows of 38 °F, with about 14 rainy days (3.38 in for the month) and 3 hours of sunshine a day. The sea is around 47 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Grundarhverfi?

The warmest is July, with average highs of 57 °F, and the coldest February, with lows of 29 °F. The wettest is January (3.80 in) and the driest, June.

More about Grundarhverfi today

Weather near Grundarhverfi

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 2.7 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 1:45 am (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from