Weather in Grangwav

14-day forecast · updated today, Thursday, October 29, at 1:48 am (EDT)

Now · clear 81 °F

Feels like: 91 °F
Low / high: 81 / 84 °F
Rain: 63% · 0.20 in
Wind: 4 mph SE

→ 29.90 inHg · steady UV 8 · high

Today in Grangwav: heavy drizzle, 81 °F to 84 °F, with a 63% chance of rain (0.20 in) and a light breeze from the southeast (4 mph). Tomorrow, overcast, 79 °F to 84 °F and a 26% chance of rain. The warmest day of the week is Thursday 29, at 84 °F. Next likely rain: Monday 2 (33%).

Temperatures for the next 14 days

84° 81°
Today
84° 79°
Fri 30
84° 81°
Sat 31
83° 81°
Sun 1
83° 80°
Mon 2
82° 79°
Tue 3
83° 79°
Wed 4
82° 79°
Thu 5
83° 80°
Fri 6
84° 80°
Sat 7
83° 80°
Sun 8
85° 79°
Mon 9
84° 82°
Tue 10
85° 79°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Heavy drizzle	81 / 84 °F	63% · 0.20 in	8 mph E	0.1 ft	12:49 pm	ECMWF
Fri 30	Overcast	79 / 84 °F	26%	4 mph E	0.3 ft	5:50 pm	ECMWF
Sat 31	Mainly clear	81 / 84 °F	14%	6 mph E	0.1 ft	5:48 pm	ECMWF
Sun 1	Light drizzle	81 / 83 °F	30% · 0.04 in	6 mph E	0.1 ft	3:09 pm	ECMWF
Mon 2	Light showers	80 / 83 °F	33% · 0.29 in	5 mph WNW	0.1 ft	3:27 pm	ECMWF
Tue 3	Light showers	79 / 82 °F	43% · 0.53 in	5 mph ENE	0.1 ft	1:27 am · 3:45 pm	ECMWF
Wed 4	Light drizzle	79 / 83 °F	47% · 0.05 in	6 mph ENE	0.1 ft	3:29 am · 4:02 pm	ECMWF
Thu 5	Light drizzle	79 / 82 °F	55% · 0.09 in	6 mph NNW	0.1 ft	5:01 am · 4:17 pm	ECMWF
Fri 6	Light drizzle	80 / 83 °F	55% · 0.09 in	5 mph E	0.3 ft	6:17 am · 4:25 pm	ECMWF
Sat 7	Light drizzle	80 / 84 °F	29% · 0.01 in	5 mph E	0.4 ft	7:19 am · 4:12 pm	ECMWF
Sun 8	Overcast	80 / 83 °F	22%	5 mph WSW	0.5 ft	8:11 am	ECMWF
Mon 9	Overcast	79 / 85 °F	20%	5 mph SSW	0.7 ft	8:57 am	ECMWF
Tue 10	Mainly clear	82 / 84 °F	24%	5 mph NW	0.5 ft	9:44 am	ECMWF
Wed 11	Overcast	79 / 85 °F	20%	7 mph ENE	0.6 ft	10:36 am	ECMWF

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	Clear	Clear	Clear	Clear sky	Drizzle	Heavy drizzle	Partly cloudy	Mainly clear
Temperature	82°	81°	81°	82°	83°	81°	82°	82°
Chance of rain	4%	0%	1%	1%	11%	48%	59%	26%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.02 in	0.05 in	0.00 in	0.00 in
Wind (mph)	5 SE	4 SE	6 ESE	5 ESE	3 NW	6 NNW	4 NE	1 S
Humidity	79%	82%	78%	73%	70%	80%	79%	77%
UV	0	0	0	2	8	3	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on rain on Saturday 31: it may change, so check again closer to the day.

What 4 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	84°	84°	84°	83°	83°	82°	83°
AIFS	83°	85°	84°	85°	84°	81°	81°
GFS	90°	87°	87°	87°	84°	80°	87°
ICON	90°	89°	88°	89°	91°	91°	90°
Confidence	medium	high	high	medium	medium	low	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.20 in	0	0	0.04 in	0.29 in	0.53 in	0.05 in
AIFS	0.12 in	0.07 in	0.07 in	0.13 in	0.12 in	0.31 in	0.31 in
GFS	0.19 in	0	0.35 in	0.17 in	0.22 in	0.25 in	0.02 in
ICON	0.00 in	0	0.02 in	0.02 in	0.01 in	0.01 in	0.21 in
Confidence	medium	medium	low	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	815	412	610	610	514	514	611
AIFS	4	3	3	4	4	3	2
GFS	714	611	67	56	44	46	34
ICON	410	711	611	611	47	413	48
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	63%	26%	14%	30%	33%	43%	47%
GFS (GEFS, 31 scenarios)	58%	95%	100%	84%	55%	60%	65%

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: a bit warmer and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit above +0.9 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +2.0 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.8 °F	Normal	85° / 74°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	Normal	85° / 74°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.5 °F	A bit above +29%	86° / 74°

Coming months

When	TemperatureTemp.	Rain
November	Above +3.6 °F	A bit below −46%
December	Above +3.2 °F	Normal
January	A bit above +2.5 °F	Above +97%
February	A bit above +2.3 °F	A bit above +35%
March	A bit above +2.3 °F	A bit above +23%

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).

Grangwav climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Grangwav is from December to March: highs of 88 °F to 89 °F, about 2 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from August to October and in December, peaking in August. In the last 30 years (1996–2025), 13 tropical cyclones passed within 93 mi of Grangwav, about 4 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Grace, in August 2021.

88° 66°

JanJ
89° 67°

FebF
89° 69°

MarM
89° 71°

AprA
90° 72°

MayM
91° 73°

JunJ
92° 73°

JulJ
93° 73°

AugA
92° 73°

SepS
91° 73°

OctO
89° 70°

NovN
88° 68°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	88°	66°	0.94 in	2	6.8	82°	3.5 ft	–
FebruaryFeb	89°	67°	0.96 in	2	7.8	81°	3.5 ft	–
MarchMar	89°	69°	1.82 in	3	8.1	81°	3.1 ft	–
AprilApr	89°	71°	4.06 in	4	8.2	82°	3.1 ft	–
MayMay	90°	72°	6.43 in	6	6.9	83°	3.5 ft	–
JuneJun	91°	73°	3.96 in	4	7.5	84°	4.0 ft	–
JulyJul	92°	73°	4.95 in	3	7.8	85°	3.7 ft	1
AugustAug	93°	73°	6.18 in	4	7.7	86°	3.4 ft	7
SeptemberSep	92°	73°	6.13 in	6	6.5	86°	2.7 ft	1
OctoberOct	91°	73°	6.26 in	7	6.2	86°	2.8 ft	2
NovemberNov	89°	70°	3.03 in	5	6.2	85°	2.5 ft	–
DecemberDec	88°	68°	0.81 in	2	6.1	83°	3.3 ft	2

Month	Water	Waves	Cyclones
Jan	82°	3.5 ft	–
Feb	81°	3.5 ft	–
Mar	81°	3.1 ft	–
Apr	82°	3.1 ft	–
May	83°	3.5 ft	–
Jun	84°	4.0 ft	–
Jul	85°	3.7 ft	1
Aug	86°	3.4 ft	7
Sep	86°	2.7 ft	1
Oct	86°	2.8 ft	2
Nov	85°	2.5 ft	–
Dec	83°	3.3 ft	2

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

A normal year brings 45.52 in of rain on about 47 days and about 2,600 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

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

Now81 °Ffeels like 91 °F

Tomorrow79 / 84 °F

It's 81 °F now (feels like 91 °F). Today, 81 °F to 84 °F; tomorrow, 79 °F to 84 °F.

Chance of rain

Today 63% 0.20 in
Fri 30 26%
Sat 31 14%
Sun 1 30% 0.04 in
Mon 2 33% 0.29 in
Tue 3 43% 0.53 in
Wed 4 47% 0.05 in

Today the chance of rain reaches 63%, with 0.20 in in total. The next day with likely rain is Monday 2: 33% and 0.29 in.

Recent rain: last 24 hours, 0.02 in; last 3 days, 2.69 in; last 7 days, 4.45 in.

Humidity and dew point

Humidity83%

Dew point76 °F

Humidity is 83% now and the dew point is 76 °F. With a dew point this high, it feels muggy.

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

Visibility and fog

Now15 migood

Clouds3%

Visibility is good now (15 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 peak8high

Fri 30: 8 · Sat 31: 8 · Sun 1: 8

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 · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.8029.9030.00 29.97

Steady now (−0.03 inHg in 3 hours). It barely changes over the next 48 hours. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 50

Saharan dustNo

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	80 / 88 °F	0.02 in	6 mph SE
Tue 27	Light drizzle	80 / 82 °F	0.12 in	8 mph SE
Mon 26	Showers	78 / 80 °F	2.70 in	9 mph E
Sun 25	Rain	80 / 85 °F	1.11 in	15 mph ESE
Sat 24	Light rain	80 / 91 °F	0.33 in	17 mph ESE
Fri 23	Light drizzle	80 / 89 °F	0.11 in	6 mph E
Thu 22	Light drizzle	79 / 87 °F	0.06 in	6 mph SE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	80 / 85 °F	0.01 in	13 mph W
Tue 20	Heavy drizzle	79 / 85 °F	0.20 in	12 mph W
Mon 19	Light drizzle	82 / 86 °F	0.05 in	7 mph NW
Sun 18	Light drizzle	82 / 87 °F	0.01 in	8 mph NNE
Sat 17	Partly cloudy	82 / 87 °F	0	10 mph WNW
Fri 16	Mainly clear	82 / 88 °F	0	7 mph NNE
Thu 15	Overcast	84 / 87 °F	0	8 mph NNE
Wed 14	Light drizzle	80 / 87 °F	0.07 in	10 mph ENE
Tue 13	Light drizzle	81 / 86 °F	0.07 in	13 mph SSE
Mon 12	Drizzle	81 / 86 °F	0.08 in	9 mph ESE
Sun 11	Light drizzle	84 / 87 °F	0.02 in	8 mph ENE
Sat 10	Partly cloudy	82 / 88 °F	0	10 mph NE
Fri 9	Light drizzle	82 / 88 °F	0.08 in	7 mph ENE
Thu 8	Light drizzle	82 / 86 °F	0.08 in	7 mph SE
Wed 7	Light drizzle	84 / 87 °F	0.01 in	6 mph NW
Tue 6	Light drizzle	82 / 87 °F	0.01 in	8 mph W
Mon 5	Overcast	82 / 86 °F	0	6 mph SSE
Sun 4	Drizzle	79 / 88 °F	0.20 in	8 mph ENE
Sat 3	Thunderstorm	81 / 87 °F	0.53 in	9 mph ENE
Fri 2	Drizzle	83 / 89 °F	0.14 in	7 mph E
Thu 1	Light drizzle	84 / 88 °F	0.02 in	9 mph NE
Wed 30	Light drizzle	85 / 89 °F	0.01 in	8 mph NNW
Tue 29	Overcast	84 / 89 °F	0	13 mph NNE

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 GrangwavQuestions

What's the weather like today in Grangwav?

Heavy drizzle, from 81 °F to 84 °F, with a light breeze from the southeast (4 mph) and a 63% chance of rain.

Will it rain tomorrow in Grangwav?

On Friday 30 the chance of rain is 26% (0.00 in): overcast.

How warm will it be this week?

Between a low of 79 °F and a high of 84 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 8 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 29.90 inHg and steady: −0.01 inHg over the last 24 hours.

When is the best time to visit Grangwav?

The best time to visit Grangwav is from December to March: highs of 88 °F to 89 °F, about 2 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Grangwav in October?

In October, Grangwav normally sees highs of 91 °F and lows of 73 °F, with about 7 rainy days (6.26 in for the month) and 6 hours of sunshine a day. The sea is around 86 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Grangwav?

The warmest is August, with average highs of 93 °F, and the coldest January, with lows of 66 °F. The wettest is May (6.43 in) and the driest, December.

When is hurricane season in Grangwav?

Hurricane season: from August to October and in December, peaking in August. In the last 30 years (1996–2025), 13 tropical cyclones passed within 93 mi of Grangwav, about 4 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Grace, in August 2021.

More about Grangwav today

Weather near Grangwav

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 5.3 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 1:48 am (local time).

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