Weather in Carmarthen

14-day forecast · updated today, Wednesday, October 28, at 10:00 pm (GMT)

Now · overcast 54 °F

Feels like: 53 °F
Low / high: 50 / 59 °F
Rain: 100% · 0.01 in
Wind: 3 mph SSW

→ 30.32 inHg · steady

Today in Carmarthen: overcast, 50 °F to 59 °F, with a 100% chance of rain (0.01 in) and a light air from the south-southwest (3 mph). Tomorrow, light showers, 51 °F to 57 °F and a 2% chance of rain. The warmest day of the week is Wednesday 28, at 59 °F. No significant rain expected over the next 7 days.

Measured now at the airport

EGOP (EGOP), 10 mi away · 40 min ago

Visibility3.1 mi

WeatherMist

Temperature57 °F

Wind10 mph from the southwest

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

59° 50°
Today
57° 51°
Thu 29
58° 45°
Fri 30
56° 40°
Sat 31
57° 41°
Sun 1
52° 44°
Mon 2
53° 42°
Tue 3
54° 44°
Wed 4
53° 44°
Thu 5
52° 42°
Fri 6
51° 42°
Sat 7
55° 50°
Sun 8
58° 54°
Mon 9
57° 53°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	50 / 59 °F	100% · 0.01 in	16 mph SW	7.5 ft	7:11 am · 7:36 pm	ICON-EU
Thu 29	Light showers	51 / 57 °F	2% · 0.02 in	9 mph SE	4.3 ft	7:53 am · 8:19 pm	ICON-EU
Fri 30	Overcast	45 / 58 °F	0%	10 mph ESE	3.3 ft	8:37 am · 9:07 pm	ICON-EU
Sat 31	Fog	40 / 56 °F	0%	4 mph NE	3.2 ft	9:27 am · 10:01 pm	ICON-EU
Sun 1	Fog	41 / 57 °F	0%	6 mph NNE	2.2 ft	10:27 am · 11:10 pm	ICON-EU
Mon 2	Overcast	44 / 52 °F	4%	9 mph NE	1.2 ft	11:44 am	ICON-EU + ECMWF
Tue 3	Overcast	42 / 53 °F	2%	11 mph NE	1.0 ft	12:33 am · 1:08 pm	ECMWF
Wed 4	Partly cloudy	44 / 54 °F	0%	11 mph ENE	1.6 ft	1:54 am · 2:24 pm	ECMWF
Thu 5	Partly cloudy	44 / 53 °F	4%	10 mph ENE	2.4 ft	3:02 am · 3:25 pm	ECMWF
Fri 6	Mainly clear	42 / 52 °F	4%	11 mph E	1.7 ft	3:56 am · 4:16 pm	ECMWF
Sat 7	Overcast	42 / 51 °F	12%	11 mph E	5.1 ft	4:41 am · 4:59 pm	ECMWF
Sun 8	Light rain	50 / 55 °F	17% · 0.55 in	11 mph ESE	2.7 ft	5:21 am · 5:38 pm	ECMWF
Mon 9	Drizzle	54 / 58 °F	22% · 0.32 in	10 mph SE	2.4 ft	5:58 am · 6:14 pm	ECMWF
Tue 10	Drizzle	53 / 57 °F	25% · 0.41 in	9 mph SSE	1.8 ft	6:32 am · 6:47 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	Overcast	Overcast	Overcast	Partly cloudy	Overcast	Overcast	Overcast
Temperature	50°	52°	55°	56°	58°	58°	55°	54°
Chance of rain	0%	6%	6%	94%	88%	51%	22%	20%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	7 SW	12 SW	16 SW	14 WSW	13 WSW	12 WSW	5 SW	3 SSW
Humidity	84%	87%	87%	91%	86%	84%	94%	95%
UV	0	0	0	0	1	0	0	0
Model	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain today: take it with some caution.

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	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	58°	58°	59°	56°	55°	53°	53°
AIFS	58°	57°	58°	55°	54°	51°	52°
GFS	58°	57°	58°	59°	60°	55°	54°
ICON	58°	57°	58°	56°	52°	52°	53°
ARPEGE	59°	58°	57°	56°	—	—	—
ICON-EU	59°	57°	58°	56°	57°	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0.10 in	0.00 in	0	0	0	0	0
AIFS	0.09 in	0	0	0	0	0	0
GFS	0.07 in	0.02 in	0	0	0	0	0
ICON	0.02 in	0.02 in	0	0	0	0	0
ARPEGE	0.05 in	0	0	0	—	—	—
ICON-EU	0.01 in	0.02 in	0	0	0	—	—
Confidence	medium	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	1630	1019	1122	713	922	922	1120
AIFS	18	12	11	8	9	10	13
GFS	1729	1223	1324	67	816	812	1017
ICON	1626	1017	1220	46	46	1017	1322
ARPEGE	1930	1320	1422	812	—	—	—
ICON-EU	1626	916	1016	46	611	—	—
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	100%	2%	0%	0%	0%	4%	2%
GFS (GEFS, 31 scenarios)	94%	6%	0%	0%	3%	0%	0%

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.

The next few weeks look normal for the time of year.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −2.0 °F	Below −83%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	Normal	51° / 45°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	A bit above +44%	50° / 45°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.3 °F	A bit above +21%	49° / 44°
Nov 30 – Dec 6Nov 30–Dec 6	Normal +0.5 °F	Normal	48° / 43°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.7 °F	Normal
December	A bit above +1.8 °F	A bit above +23%
January	A bit above +1.4 °F	Normal
February	A bit above +1.1 °F	Normal
March	A bit above +1.3 °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).

Carmarthen climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Carmarthen is from June to August: highs of 65 °F to 67 °F, about 12 rainy days a month and 6 hours of sunshine a day.

47° 38°

JanJ
47° 38°

FebF
50° 40°

MarM
55° 42°

AprA
60° 47°

MayM
65° 52°

JunJ
67° 56°

JulJ
67° 56°

AugA
64° 52°

SepS
58° 48°

OctO
53° 43°

NovN
48° 40°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	47°	38°	4.21 in	15	1.5	48°	6.1 ft
FebruaryFeb	47°	38°	3.29 in	12	2.3	46°	6.5 ft
MarchMar	50°	40°	2.99 in	12	3.9	46°	4.7 ft
AprilApr	55°	42°	2.66 in	11	5.7	48°	3.5 ft
MayMay	60°	47°	2.67 in	10	6.6	52°	3.3 ft
JuneJun	65°	52°	3.22 in	11	7.0	56°	3.2 ft
JulyJul	67°	56°	3.69 in	12	5.8	60°	2.9 ft
AugustAug	67°	56°	3.84 in	13	5.4	62°	3.6 ft
SeptemberSep	64°	52°	3.41 in	13	4.5	62°	3.9 ft
OctoberOct	58°	48°	4.98 in	15	2.8	59°	4.8 ft
NovemberNov	53°	43°	5.41 in	16	1.6	55°	5.5 ft
DecemberDec	48°	40°	4.85 in	16	1.0	51°	6.8 ft

Month	Water	Waves
Jan	48°	6.1 ft
Feb	46°	6.5 ft
Mar	46°	4.7 ft
Apr	48°	3.5 ft
May	52°	3.3 ft
Jun	56°	3.2 ft
Jul	60°	2.9 ft
Aug	62°	3.6 ft
Sep	62°	3.9 ft
Oct	59°	4.8 ft
Nov	55°	5.5 ft
Dec	51°	6.8 ft

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

A normal year brings 45.22 in of rain on about 155 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

Now54 °Ffeels like 53 °F

Tomorrow51 / 57 °F

It's 54 °F now (feels like 53 °F). Today, 50 °F to 59 °F; tomorrow, 51 °F to 57 °F.

Chance of rain

Today 100% 0.01 in
Thu 29 2% 0.02 in
Fri 30 0%
Sat 31 0%
Sun 1 0%
Mon 2 4%
Tue 3 2%

Today the chance of rain reaches 100%, with 0.01 in in total. No significant rain expected this week.

Recent rain: last 24 hours, 0.01 in; last 3 days, 0.97 in; last 7 days, 3.41 in.

Humidity and dew point

Humidity95%

Dew point53 °F

Humidity is 95% now and the dew point is 53 °F. The temperature is very close to the dew point: fog may form.

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

Visibility and fog

Now9.1 migood

Clouds100%

Visibility is good now (9.1 mi). No fog expected today.

UV index

Now0

Today's peak1low

Thu 29: 1 · Fri 30: 2 · Sat 31: 1

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

30.2030.40 30.41

Steady now (+0.02 inHg in 3 hours). Over the next 48 hours: +0.10 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 28

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
Tue 27	Light rain	51 / 60 °F	0.19 in	26 mph WSW
Mon 26	Rain	52 / 61 °F	0.70 in	27 mph SSW
Sun 25	Overcast	51 / 53 °F	0	25 mph W
Sat 24	Rain	48 / 59 °F	1.24 in	26 mph WSW
Fri 23	Light rain	48 / 53 °F	0.62 in	28 mph NW
Thu 22	Light rain	48 / 57 °F	0.52 in	18 mph SW
Wed 21	Light rain	48 / 53 °F	0.46 in	21 mph W

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light drizzle	46 / 55 °F	0.01 in	10 mph ESE
Mon 19	Drizzle	44 / 56 °F	0.11 in	14 mph ENE
Sun 18	Mainly clear	39 / 55 °F	0	11 mph NE
Sat 17	Overcast	43 / 57 °F	0	9 mph NNE
Fri 16	Heavy drizzle	46 / 56 °F	0.09 in	14 mph NNW
Thu 15	Light rain	58 / 62 °F	0.63 in	18 mph SSW
Wed 14	Light drizzle	53 / 63 °F	0.04 in	19 mph SSW
Tue 13	Heavy drizzle	54 / 64 °F	0.20 in	21 mph WSW
Mon 12	Light drizzle	58 / 65 °F	0.11 in	16 mph S
Sun 11	Light drizzle	47 / 60 °F	0.02 in	15 mph SE
Sat 10	Overcast	51 / 56 °F	0	17 mph WNW
Fri 9	Drizzle	53 / 62 °F	0.20 in	23 mph W
Thu 8	Drizzle	49 / 59 °F	0.11 in	18 mph WNW
Wed 7	Drizzle	50 / 58 °F	0.14 in	17 mph NNW
Tue 6	Light drizzle	58 / 65 °F	0.09 in	8 mph WSW
Mon 5	Light drizzle	59 / 63 °F	0.04 in	12 mph WSW
Sun 4	Light drizzle	44 / 63 °F	0.01 in	10 mph SW
Sat 3	Drizzle	47 / 64 °F	0.07 in	15 mph NW
Fri 2	Rain	59 / 65 °F	0.67 in	18 mph SSW
Thu 1	Light drizzle	52 / 63 °F	0.09 in	14 mph SW
Wed 30	Rain	55 / 65 °F	0.69 in	20 mph S
Tue 29	Rain	53 / 71 °F	0.20 in	22 mph SE
Mon 28	Overcast	46 / 64 °F	0	9 mph ESE

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 CarmarthenQuestions

What's the weather like today in Carmarthen?

Overcast, from 50 °F to 59 °F, with a light air from the south-southwest (3 mph) and a 100% chance of rain.

Will it rain tomorrow in Carmarthen?

On Thursday 29 the chance of rain is 2% (0.02 in): light showers.

How warm will it be this week?

Between a low of 40 °F and a high of 59 °F; the warmest day, Wednesday 28.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.32 inHg and steady: +0.20 inHg over the last 24 hours.

When is the best time to visit Carmarthen?

The best time to visit Carmarthen is from June to August: highs of 65 °F to 67 °F, about 12 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Carmarthen in October?

In October, Carmarthen normally sees highs of 58 °F and lows of 48 °F, with about 15 rainy days (4.98 in for the month) and 3 hours of sunshine a day. The sea is around 59 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Carmarthen?

The warmest is July, with average highs of 67 °F, and the coldest February, with lows of 38 °F. The wettest is November (5.41 in) and the driest, April.

More about Carmarthen today

Weather near Carmarthen

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 7.7 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 10:00 pm (local time).

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