Weather in La Roche-Derrien

14-day forecast · updated today, Thursday, October 29, at 12:56 am (CET)

Now · fog 42 °F

Feels like: 39 °F
Low / high: 40 / 58 °F
Rain: 0%
Wind: 2 mph S

→ 30.36 inHg · steady

Today in La Roche-Derrien: fog, 40 °F to 58 °F, with a 0% chance of rain and a light air from the south (2 mph). Tomorrow, fog, 37 °F to 58 °F and a 0% chance of rain. The warmest day of the week is Friday 30, at 58 °F. Next likely rain: Tuesday 3 (27%).

Temperatures for the next 14 days

58° 40°
Today
58° 37°
Fri 30
56° 38°
Sat 31
58° 47°
Sun 1
57° 49°
Mon 2
57° 53°
Tue 3
54° 47°
Wed 4
50° 44°
Thu 5
51° 40°
Fri 6
58° 42°
Sat 7
57° 51°
Sun 8
60° 56°
Mon 9
63° 56°
Tue 10
58° 52°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Fog	40 / 58 °F	0%	10 mph ESE	2.2 ft	8:37 am · 9:02 pm	AROME
Fri 30	Fog	37 / 58 °F	0%	8 mph E	1.6 ft	9:18 am · 9:46 pm	AROME + ICON-EU
Sat 31	Fog	38 / 56 °F	0%	10 mph E	1.9 ft	10:04 am · 10:37 pm	ICON-EU
Sun 1	Fog	47 / 58 °F	0%	10 mph ENE	2.0 ft	10:59 am · 11:44 pm	ICON-EU
Mon 2	Overcast	49 / 57 °F	20%	14 mph NE	2.6 ft	12:16 pm	ICON-EU + ECMWF
Tue 3	Light drizzle	53 / 57 °F	27% · 0.06 in	15 mph NE	2.8 ft	1:15 am · 1:51 pm	ECMWF
Wed 4	Light drizzle	47 / 54 °F	11% · 0.01 in	14 mph ENE	3.1 ft	2:44 am · 3:11 pm	ECMWF
Thu 5	Mainly clear	44 / 50 °F	6%	10 mph E	2.6 ft	3:51 am · 4:11 pm	ECMWF
Fri 6	Overcast	40 / 51 °F	8%	10 mph ESE	1.4 ft	4:42 am · 5:00 pm	ECMWF
Sat 7	Overcast	42 / 58 °F	8%	9 mph SE	4.2 ft	5:25 am · 5:42 pm	ECMWF
Sun 8	Drizzle	51 / 57 °F	14% · 0.18 in	7 mph SSE	1.8 ft	6:04 am · 6:21 pm	ECMWF
Mon 9	Heavy drizzle	56 / 60 °F	31% · 0.69 in	8 mph S	2.3 ft	6:41 am · 6:58 pm	ECMWF
Tue 10	Light rain	56 / 63 °F	27% · 0.57 in	10 mph SSW	2.6 ft	7:16 am · 7:32 pm	ECMWF
Wed 11	Light rain	52 / 58 °F	26% · 0.26 in	12 mph SW	4.5 ft	7:48 am · 8:04 pm	ECMWF

Each hour comes from the best model for this spot: AROME until Friday 30 11:00 pm; then ICON-EU until Monday 2 8:00 pm; then ECMWF until Thursday 12 4:00 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	Fog	Fog	Overcast	Overcast	Overcast	Overcast	Overcast	Overcast
Temperature	42°	42°	40°	43°	55°	58°	53°	47°
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)	1 SE	0 W	1 NW	1 E	9 ESE	8 ESE	4 E	4 E
Humidity	96%	95%	97%	92%	76%	68%	80%	90%
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	57°	57°	57°	60°	57°	57°	54°
AIFS	58°	57°	56°	58°	56°	55°	51°
GFS	59°	60°	59°	60°	58°	57°	55°
ICON	57°	57°	56°	57°	57°	57°	51°
ARPEGE	59°	59°	59°	59°	—	—	—
AROME	58°	58°	—	—	—	—	—
ICON-EU	57°	58°	56°	58°	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	0.02 in	0.06 in	0.01 in
AIFS	0	0	0	0	0.05 in	0.09 in	0
GFS	0	0	0	0	0.01 in	0.02 in	0
ICON	0	0	0	0	0.00 in	0.07 in	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	817	816	715	1017	1126	1529	1427
AIFS	11	8	10	11	15	16	17
GFS	1117	1217	1217	1523	2026	2025	1927
ICON	916	814	1018	1017	1424	1729	1832
ARPEGE	1220	1015	1423	1221	—	—	—
AROME	1017	813	—	—	—	—	—
ICON-EU	915	813	1017	1017	1424	—	—
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)	0%	0%	0%	0%	20%	27%	11%
GFS (GEFS, 31 scenarios)	0%	0%	0%	2%	16%	19%	16%

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 −2.3 °F	Below −78%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	A bit above +21%	54° / 49°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.4 °F	A bit above +38%	53° / 48°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.4 °F	Normal	52° / 48°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.4 °F	Normal
December	A bit above +2.2 °F	Normal
January	A bit above +1.8 °F	Normal
February	A bit above +2.0 °F	A bit above +21%
March	A bit above +1.6 °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).

La Roche-Derrien climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit La Roche-Derrien is from July to August: highs of 70 °F, about 7 rainy days a month and 7 hours of sunshine a day.

49° 41°

JanJ
50° 40°

FebF
53° 42°

MarM
57° 44°

AprA
62° 48°

MayM
67° 53°

JunJ
70° 56°

JulJ
70° 57°

AugA
67° 54°

SepS
61° 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°	41°	4.26 in	12	1.5	51°	7.2 ft
FebruaryFeb	50°	40°	3.31 in	10	2.7	49°	7.7 ft
MarchMar	53°	42°	2.78 in	9	4.5	49°	6.0 ft
AprilApr	57°	44°	2.52 in	9	6.5	50°	4.6 ft
MayMay	62°	48°	2.30 in	8	7.2	53°	3.9 ft
JuneJun	67°	53°	2.09 in	7	7.4	57°	3.7 ft
JulyJul	70°	56°	1.86 in	7	7.4	60°	3.3 ft
AugustAug	70°	57°	2.32 in	7	6.5	62°	3.6 ft
SeptemberSep	67°	54°	2.39 in	8	5.9	62°	4.3 ft
OctoberOct	61°	51°	4.34 in	12	3.3	60°	5.2 ft
NovemberNov	55°	46°	4.63 in	13	2.4	57°	6.4 ft
DecemberDec	50°	42°	4.81 in	13	1.4	54°	7.5 ft

Month	Water	Waves
Jan	51°	7.2 ft
Feb	49°	7.7 ft
Mar	49°	6.0 ft
Apr	50°	4.6 ft
May	53°	3.9 ft
Jun	57°	3.7 ft
Jul	60°	3.3 ft
Aug	62°	3.6 ft
Sep	62°	4.3 ft
Oct	60°	5.2 ft
Nov	57°	6.4 ft
Dec	54°	7.5 ft

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

A normal year brings 37.62 in of rain on about 113 days and about 1,750 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

Now42 °Ffeels like 39 °F

Tomorrow37 / 58 °F

It's 42 °F now (feels like 39 °F). Today, 40 °F to 58 °F; tomorrow, 37 °F to 58 °F.

Chance of rain

Today 0%
Fri 30 0%
Sat 31 0%
Sun 1 0%
Mon 2 20%
Tue 3 27% 0.06 in
Wed 4 11% 0.01 in

Today the chance of rain reaches 0%. The next day with likely rain is Tuesday 3: 27% and 0.06 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.14 in; last 7 days, 1.84 in.

Humidity and dew point

Humidity92%

Dew point40 °F

Humidity is 92% now and the dew point is 40 °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

Now2.0 mimisty

Clouds78%

Visibility is misty now (2.0 mi). There may be fog today at 12:00 am, 1:00 am, 2:00 am, 3:00 am.

UV index

Now0

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 30.26

Steady now (−0.01 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 · 33

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	45 / 61 °F	0	7 mph SW
Tue 27	Drizzle	48 / 61 °F	0.12 in	20 mph WSW
Mon 26	Light drizzle	50 / 67 °F	0.02 in	17 mph SSW
Sun 25	Light rain	49 / 61 °F	0.32 in	23 mph W
Sat 24	Light rain	51 / 60 °F	0.40 in	25 mph SW
Fri 23	Light rain	50 / 56 °F	0.54 in	33 mph W
Thu 22	Light rain	51 / 57 °F	0.44 in	21 mph SSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light rain	51 / 55 °F	0.57 in	20 mph W
Tue 20	Light drizzle	45 / 59 °F	0.06 in	10 mph SW
Mon 19	Drizzle	46 / 58 °F	0.12 in	9 mph ESE
Sun 18	Light drizzle	49 / 58 °F	0.07 in	13 mph NNE
Sat 17	Partly cloudy	53 / 58 °F	0	14 mph NNE
Fri 16	Light drizzle	55 / 61 °F	0.07 in	14 mph NNW
Thu 15	Overcast	58 / 72 °F	0	10 mph SSW
Wed 14	Overcast	47 / 69 °F	0	7 mph S
Tue 13	Light drizzle	54 / 67 °F	0.05 in	13 mph WSW
Mon 12	Drizzle	58 / 70 °F	0.14 in	13 mph SSW
Sun 11	Drizzle	51 / 60 °F	0.12 in	13 mph S
Sat 10	Light drizzle	54 / 61 °F	0.02 in	12 mph WNW
Fri 9	Drizzle	54 / 65 °F	0.19 in	16 mph WSW
Thu 8	Overcast	54 / 60 °F	0	17 mph NNW
Wed 7	Light rain	57 / 62 °F	0.63 in	18 mph N
Tue 6	Light rain	57 / 73 °F	0.19 in	9 mph ENE
Mon 5	Overcast	54 / 71 °F	0	7 mph ENE
Sun 4	Partly cloudy	55 / 69 °F	0	10 mph NE
Sat 3	Overcast	56 / 69 °F	0	8 mph NE
Fri 2	Overcast	51 / 70 °F	0	6 mph S
Thu 1	Overcast	52 / 67 °F	0	8 mph WSW
Wed 30	Heavy drizzle	59 / 72 °F	0.21 in	16 mph SSW
Tue 29	Drizzle	60 / 78 °F	0.11 in	16 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 La Roche-DerrienQuestions

What's the weather like today in La Roche-Derrien?

Fog, from 40 °F to 58 °F, with a light air from the south (2 mph) and a 0% chance of rain.

Will it rain tomorrow in La Roche-Derrien?

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

How warm will it be this week?

Between a low of 37 °F and a high of 58 °F; the warmest day, Friday 30.

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: +0.07 inHg over the last 24 hours.

When is the best time to visit La Roche-Derrien?

The best time to visit La Roche-Derrien is from July to August: highs of 70 °F, about 7 rainy days a month and 7 hours of sunshine a day.

What is the weather like in La Roche-Derrien in October?

In October, La Roche-Derrien normally sees highs of 61 °F and lows of 51 °F, with about 12 rainy days (4.34 in for the month) and 3 hours of sunshine a day. The sea is around 60 °F. These are 1991–2020 averages.

What are the warmest and wettest months in La Roche-Derrien?

The warmest is August, with average highs of 70 °F, and the coldest February, with lows of 40 °F. The wettest is December (4.81 in) and the driest, July.

More about La Roche-Derrien today

Weather near La Roche-Derrien

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 0.5 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 12:56 am (local time).

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