Weather in Saint-Cast-le-Guildo

14-day forecast · updated today, Thursday, October 29, at 10:24 am (CET)

Now · overcast 51 °F

Feels like: 47 °F
Low / high: 51 / 59 °F
Rain: 0%
Wind: 8 mph SE

→ 30.36 inHg · steady

Today in Saint-Cast-le-Guildo: overcast, 51 °F to 59 °F, with a 0% chance of rain and a gentle breeze from the southeast (8 mph). Tomorrow, partly cloudy, 50 °F to 58 °F and a 0% chance of rain. The warmest day of the week is Thursday 29, at 59 °F. Next likely rain: Tuesday 3 (8%).

Measured now at the airport

Dinard/Pleurtuit (LFRD), 8.9 mi away · 24 min ago

Visibility6.2 mi or more

WeatherNothing to note

Temperature50 °F

Wind2 mph variable direction

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° 51°
Today
58° 50°
Fri 30
56° 49°
Sat 31
55° 50°
Sun 1
57° 48°
Mon 2
55° 47°
Tue 3
49° 40°
Wed 4
49° 38°
Thu 5
48° 38°
Fri 6
49° 35°
Sat 7
48° 28°
Sun 8
49° 36°
Mon 9
54° 42°
Tue 10
58° 48°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	51 / 59 °F	0%	15 mph ESE	1.8 ft	8:48 am · 9:12 pm	AROME
Fri 30	Partly cloudy	50 / 58 °F	0%	17 mph E	1.6 ft	9:29 am · 9:56 pm	AROME
Sat 31	Partly cloudy	49 / 56 °F	0%	12 mph E	1.8 ft	10:14 am · 10:45 pm	AROME + ICON-EU
Sun 1	Overcast	50 / 55 °F	0%	12 mph ENE	2.5 ft	11:08 am · 11:50 pm	ICON-EU
Mon 2	Overcast	48 / 57 °F	8%	15 mph ENE	3.0 ft	12:23 pm	ICON-EU
Tue 3	Light drizzle	47 / 55 °F	8% · 0.06 in	14 mph NE	3.1 ft	1:21 am · 1:58 pm	ICON-EU + ECMWF
Wed 4	Mainly clear	40 / 49 °F	2%	10 mph ENE	2.8 ft	2:53 am · 3:20 pm	ECMWF
Thu 5	Mainly clear	38 / 49 °F	6%	8 mph ENE	2.6 ft	4:01 am · 4:21 pm	ECMWF
Fri 6	Clear sky	38 / 48 °F	4%	7 mph ENE	1.7 ft	4:53 am · 5:10 pm	ECMWF
Sat 7	Clear sky	35 / 49 °F	7%	6 mph NE	2.8 ft	5:36 am · 5:53 pm	ECMWF
Sun 8	Overcast	28 / 48 °F	14%	4 mph E	2.0 ft	6:16 am · 6:32 pm	ECMWF
Mon 9	Overcast	36 / 49 °F	27%	8 mph SSE	1.6 ft	6:52 am · 7:08 pm	ECMWF
Tue 10	Light drizzle	42 / 54 °F	25% · 0.02 in	9 mph SSE	1.2 ft	7:26 am · 7:42 pm	ECMWF
Wed 11	Overcast	48 / 58 °F	19%	8 mph ESE	2.0 ft	7:58 am · 8:14 pm	ECMWF

Each hour comes from the best model for this spot: AROME until Saturday 31 8:00 am; then ICON-EU until Tuesday 3 2:00 am; then ECMWF until Friday 13 4:00 am; 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	Overcast	Overcast	Overcast	Partly cloudy
Temperature	54°	53°	52°	51°	54°	58°	59°	57°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
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)	5 SSE	3 S	4 SSE	8 SSE	9 SE	12 ESE	12 ESE	14 E
Humidity	75%	77%	80%	79%	73%	69%	70%	78%
UV	0	0	0	0	2	1	0	0
Model	AROME	AROME	AROME	AROME	AROME	AROME	AROME	AROME

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 7 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	58°	59°	58°	58°	57°	55°	49°
AIFS	58°	57°	56°	58°	56°	55°	52°
GFS	60°	63°	60°	60°	57°	57°	52°
ICON	58°	55°	56°	54°	58°	56°	51°
ARPEGE	58°	58°	57°	59°	—	—	—
AROME	59°	58°	—	—	—	—	—
ICON-EU	57°	55°	56°	55°	57°	—	—
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	0	0	0	0.05 in	0.06 in	0
AIFS	0	0	0	0	0	0	0
GFS	0	0	0	0	0.01 in	0.03 in	0
ICON	0	0	0	0	0	0	0
ARPEGE	0	0	0	0	—	—	—
AROME	0	0	—	—	—	—	—
ICON-EU	0	0	0	0	0	—	—
Confidence	high	high	high	high	high	medium	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	816	611	612	1019	1226	1431	1022
AIFS	9	6	7	8	12	15	13
GFS	1019	917	912	1322	1926	1827	1725
ICON	917	713	814	916	1322	1424	1527
ARPEGE	1017	811	912	1826	—	—	—
AROME	1519	1722	—	—	—	—	—
ICON-EU	915	814	1017	1220	1528	—	—
Confidence	high	high	high	high	high	high	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)	0%	0%	0%	0%	8%	8%	2%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	3%	23%	3%

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	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −2.5 °F	Below −76%	Normal +0.2 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.7 °F	Normal	Normal +0.2 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.8 °F	Normal	A bit above +0.5 °F	55° / 51°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.4 °F	A bit above +39%	A bit above +0.9 °F	53° / 50°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.4 °F	A bit above +23%	A bit above +1.1 °F	53° / 50°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +1.6 °F	Normal	Above +2.0 °F
December	A bit above +2.3 °F	Normal	Above +2.2 °F
January	A bit above +1.8 °F	Normal	Above +2.0 °F
February	A bit above +2.0 °F	A bit above +23%	Above +1.8 °F
March	A bit above +1.6 °F	Normal	A bit above +1.6 °F

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.

Saint-Cast-le-Guildo climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Saint-Cast-le-Guildo is from July to August: highs of 72 °F, about 7 rainy days a month and 7 hours of sunshine a day.

49° 40°

JanJ
50° 40°

FebF
54° 43°

MarM
57° 45°

AprA
63° 50°

MayM
68° 55°

JunJ
71° 58°

JulJ
72° 58°

AugA
68° 55°

SepS
62° 51°

OctO
55° 46°

NovN
50° 42°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	49°	40°	3.42 in	10	1.7	49°	2.2 ft
FebruaryFeb	50°	40°	2.47 in	9	3.1	47°	2.3 ft
MarchMar	54°	43°	2.35 in	9	4.7	48°	1.9 ft
AprilApr	57°	45°	2.04 in	8	6.6	50°	1.5 ft
MayMay	63°	50°	1.95 in	8	7.5	54°	1.4 ft
JuneJun	68°	55°	1.85 in	7	7.8	58°	1.3 ft
JulyJul	71°	58°	1.80 in	7	8.0	62°	1.3 ft
AugustAug	72°	58°	1.96 in	7	7.0	65°	1.3 ft
SeptemberSep	68°	55°	2.17 in	7	6.5	64°	1.5 ft
OctoberOct	62°	51°	3.56 in	11	3.4	61°	1.8 ft
NovemberNov	55°	46°	3.98 in	12	2.4	56°	2.1 ft
DecemberDec	50°	42°	4.08 in	12	1.5	52°	2.3 ft

Month	Water	Waves
Jan	49°	2.2 ft
Feb	47°	2.3 ft
Mar	48°	1.9 ft
Apr	50°	1.5 ft
May	54°	1.4 ft
Jun	58°	1.3 ft
Jul	62°	1.3 ft
Aug	65°	1.3 ft
Sep	64°	1.5 ft
Oct	61°	1.8 ft
Nov	56°	2.1 ft
Dec	52°	2.3 ft

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

A normal year brings 31.63 in of rain on about 108 days and about 1,850 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

Now51 °Ffeels like 47 °F

Tomorrow50 / 58 °F

It's 51 °F now (feels like 47 °F). Today, 51 °F to 59 °F; tomorrow, 50 °F to 58 °F.

Chance of rain

Today 0%
Fri 30 0%
Sat 31 0%
Sun 1 0%
Mon 2 8%
Tue 3 8% 0.06 in
Wed 4 2%

Today the chance of rain reaches 0%. The next day with likely rain is Tuesday 3: 8% and 0.06 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.08 in; last 7 days, 1.19 in.

Humidity and dew point

Humidity79%

Dew point45 °F

Humidity is 79% now and the dew point is 45 °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

Now19 migood

Clouds100%

Visibility is good now (19 mi). No fog expected today.

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

UV index

Now1

Today's peak2low

Fri 30: 2 · Sat 31: 2 · Sun 1: 2

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

30.3030.40 30.27

Steady now (+0.02 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 qualityFair · 23

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	Overcast	44 / 61 °F	0	7 mph SW
Tue 27	Light drizzle	48 / 61 °F	0.07 in	17 mph SW
Mon 26	Light drizzle	48 / 66 °F	0.05 in	15 mph SSW
Sun 25	Light rain	48 / 61 °F	0.19 in	20 mph W
Sat 24	Light rain	50 / 60 °F	0.32 in	21 mph SW
Fri 23	Drizzle	51 / 56 °F	0.38 in	28 mph WSW
Thu 22	Heavy drizzle	51 / 58 °F	0.24 in	23 mph SSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Heavy drizzle	50 / 56 °F	0.20 in	18 mph WSW
Tue 20	Drizzle	47 / 60 °F	0.12 in	11 mph SW
Mon 19	Light drizzle	44 / 58 °F	0.02 in	7 mph ESE
Sun 18	Light drizzle	48 / 58 °F	0.08 in	13 mph NNE
Sat 17	Mainly clear	51 / 59 °F	0	14 mph NNE
Fri 16	Light drizzle	56 / 60 °F	0.02 in	14 mph NW
Thu 15	Overcast	58 / 73 °F	0	10 mph SSW
Wed 14	Overcast	48 / 67 °F	0	7 mph S
Tue 13	Light drizzle	54 / 67 °F	0.06 in	11 mph WSW
Mon 12	Drizzle	56 / 69 °F	0.13 in	13 mph S
Sun 11	Light drizzle	50 / 60 °F	0.01 in	12 mph SSW
Sat 10	Light drizzle	53 / 62 °F	0.04 in	11 mph WNW
Fri 9	Light drizzle	51 / 66 °F	0.06 in	16 mph WSW
Thu 8	Light drizzle	54 / 60 °F	0.02 in	15 mph NNW
Wed 7	Drizzle	56 / 63 °F	0.43 in	18 mph NNW
Tue 6	Light drizzle	51 / 79 °F	0.06 in	7 mph E
Mon 5	Overcast	51 / 74 °F	0	7 mph NE
Sun 4	Overcast	54 / 70 °F	0	10 mph NE
Sat 3	Overcast	52 / 70 °F	0	8 mph NE
Fri 2	Overcast	48 / 71 °F	0	5 mph SSE
Thu 1	Partly cloudy	53 / 69 °F	0	9 mph WSW
Wed 30	Light drizzle	62 / 72 °F	0.04 in	15 mph SSW
Tue 29	Heavy drizzle	60 / 77 °F	0.14 in	15 mph SSE

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 Saint-Cast-le-GuildoQuestions

What's the weather like today in Saint-Cast-le-Guildo?

Overcast, from 51 °F to 59 °F, with a gentle breeze from the southeast (8 mph) and a 0% chance of rain.

Will it rain tomorrow in Saint-Cast-le-Guildo?

On Friday 30 the chance of rain is 0% (0.00 in): partly cloudy.

How warm will it be this week?

Between a low of 40 °F and a high of 59 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 2 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.36 inHg and steady: −0.02 inHg over the last 24 hours.

When is the best time to visit Saint-Cast-le-Guildo?

The best time to visit Saint-Cast-le-Guildo is from July to August: highs of 72 °F, about 7 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Saint-Cast-le-Guildo in October?

In October, Saint-Cast-le-Guildo normally sees highs of 62 °F and lows of 51 °F, with about 11 rainy days (3.56 in for the month) and 3 hours of sunshine a day. The sea is around 61 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Saint-Cast-le-Guildo?

The warmest is August, with average highs of 72 °F, and the coldest February, with lows of 40 °F. The wettest is December (4.08 in) and the driest, July.

More about Saint-Cast-le-Guildo today

Weather near Saint-Cast-le-Guildo

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 9.0 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 10:24 am (local time).

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