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Water temperature in St. Lunaire-Griquet

Sea surface temperature · updated today, Wednesday, October 28, at 8:35 pm (GMT-2:30)
Water now 38.7 °F
Today
38.7–39.0 °F
Air today
30 / 38 °F
Tue 3
37.5 °F
Wetsuit
6/5 mm with hood, booties and gloves

Today the water in St. Lunaire-Griquet is 38.7 °F and ranges 38.7–39.0 °F through the day, with the air between 30 °F and 38 °F. It cools over the next few days: about 37.5 °F by Tuesday 3.

Measured by satellite

Yesterday, 0.3 mi from St. Lunaire-Griquet 39.7 °F

This is the temperature satellites measured yesterday in the water just below the surface, at the nearest point of sea to St. Lunaire-Griquet (0.3 mi away), from NASA's MUR analysis, which sees the water in 1 km detail. It isn't a forecast: the big figure above is what a model gives for right now. On sunny afternoons the top of the water can be a little warmer.

Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses

The water over the next few days

Water over the last 60 days

Over these days it has dropped 20.2 °F (from August 29).

Over the next few weeks the water looks normal for the time of year (−0.4 °F), according to ECMWF 46-day.

Daily average and its range (low and high). The dotted line is the forecast.

Water temperature by month vs. normal

The water off St. Lunaire-Griquet is about normal for late October today.

In St. Lunaire-Griquet the water is cold all year: it is warmest in August (50.8 °F on average). For a long swim, wear a wetsuit.

The water is warmest in August (50.8 °F on average) and coldest in March (30.8 °F).

Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 9.2 mi away). Right by the shore, the water can be a little colder or warmer. Sources and licenses

Water and air, day by day

DayWaterAirMax wave
Today 38.7–39.0 °F 30 / 38 °F 5.5 ft
Thu 29 38.5–38.7 °F 34 / 40 °F 4.2 ft
Fri 30 38.3–38.7 °F 37 / 47 °F 4.6 ft
Sat 31 37.9–38.5 °F 32 / 36 °F 5.7 ft
Sun 1 37.6–37.8 °F 28 / 36 °F 5.6 ft
Mon 2 37.8–38.3 °F 30 / 38 °F 6.1 ft
Tue 3 37.0–37.9 °F 28 / 32 °F 5.8 ft

Which wetsuit to wear

WaterWetsuitHow it feels
< 52 °F6/5 mm with hood, booties and glovesVery cold: full kit only
52°–57 °F5/4 mm with bootiesCold: takes your breath away
57°–63 °F4/3 mmCool
63°–66 °F3/2 mmMild
66°–72 °FShorty (springsuit)Pleasant
72°–75 °FRash guard or topVery pleasant
> 75 °FNo wetsuitWarm

A rough guide: it depends on the wind, how long you stay in and each person.

Fish are cold-blooded: the water sets their activity. Sudden temperature changes usually put them off the bite; with steady water, activity is more regular.

Previous days

The water over the last 60 days.

DayWaterLow / high
Tue 27 39.2 °F39.0–39.2 °F
Mon 26 39.0 °F39.0–39.2 °F
Sun 25 39.0 °F38.8–39.2 °F
Sat 24 39.2 °F39.2–39.4 °F
Fri 23 39.9 °F39.4–40.1 °F
Thu 22 39.9 °F39.7–40.1 °F
Wed 21 39.9 °F39.7–40.1 °F
Show all 60 days
DayWaterLow / high
Tue 20 39.7 °F39.4–40.1 °F
Mon 19 39.2 °F39.0–39.4 °F
Sun 18 39.4 °F39.2–39.4 °F
Sat 17 39.4 °F39.2–39.4 °F
Fri 16 39.7 °F39.4–40.1 °F
Thu 15 40.8 °F40.1–41.4 °F
Wed 14 41.9 °F41.4–42.3 °F
Tue 13 43.3 °F42.4–44.1 °F
Mon 12 44.8 °F44.2–45.0 °F
Sun 11 45.1 °F45.0–45.5 °F
Sat 10 46.0 °F45.5–46.2 °F
Fri 9 45.9 °F45.7–46.0 °F
Thu 8 45.5 °F45.3–45.7 °F
Wed 7 45.5 °F45.1–45.7 °F
Tue 6 45.5 °F45.3–45.5 °F
Mon 5 45.1 °F45.1–45.3 °F
Sun 4 45.0 °F44.8–45.1 °F
Sat 3 45.1 °F44.8–45.7 °F
Fri 2 45.1 °F45.0–45.1 °F
Thu 1 45.0 °F44.8–45.1 °F
Wed 30 45.0 °F44.4–45.5 °F
Tue 29 44.8 °F44.6–45.0 °F
Mon 28 44.6 °F44.1–45.5 °F
Sun 27 44.2 °F44.1–44.2 °F
Sat 26 43.9 °F43.5–44.2 °F
Fri 25 44.1 °F43.5–44.6 °F
Thu 24 44.1 °F43.7–44.2 °F
Wed 23 44.1 °F43.9–44.4 °F
Tue 22 45.3 °F43.9–46.4 °F
Mon 21 45.9 °F45.7–46.2 °F
Sun 20 45.1 °F44.6–45.7 °F
Sat 19 46.4 °F45.3–47.8 °F
Fri 18 48.2 °F47.8–48.6 °F
Thu 17 48.2 °F48.0–48.6 °F
Wed 16 48.2 °F48.0–48.4 °F
Tue 15 47.7 °F47.1–48.6 °F
Mon 14 47.1 °F46.9–47.5 °F
Sun 13 47.3 °F47.1–47.5 °F
Sat 12 47.5 °F47.1–48.2 °F
Fri 11 48.0 °F47.3–48.4 °F
Thu 10 47.8 °F47.5–48.2 °F
Wed 9 48.7 °F48.2–49.5 °F
Tue 8 52.0 °F49.6–53.2 °F
Mon 7 53.2 °F52.9–53.4 °F
Sun 6 52.7 °F52.3–53.1 °F
Sat 5 53.8 °F53.1–54.1 °F
Fri 4 55.4 °F54.0–57.6 °F
Thu 3 57.9 °F57.7–58.3 °F
Wed 2 57.6 °F56.8–58.3 °F
Tue 1 57.4 °F56.8–58.1 °F
Mon 31 59.0 °F58.3–59.2 °F
Sun 30 59.0 °F58.6–59.4 °F
Sat 29 59.4 °F59.0–59.5 °F

It's the daily analysis from Météo-France / Copernicus Marine (satellites, buoys and model), not a buoy reading at this spot.

Questions about the water in St. Lunaire-GriquetQuestions

What's the water temperature today in St. Lunaire-Griquet?

38.7 °F; through the day it ranges 38.7–39.0 °F.

Will the water get warmer or colder?

It cools over the next few days: about 37.5 °F by Tuesday 3.

Which wetsuit do I need today?

With the water as it is today, 6/5 mm with hood, booties and gloves (very cold: full kit only). It's a rough guide: it depends on the wind and each person.

How warm is the water in St. Lunaire-Griquet in October?

In October, the water in St. Lunaire-Griquet averages 40.6 °F (1991–2020). For a long swim: 6/5 mm with hood, booties and gloves (very cold: full kit only).

How warm is the water in St. Lunaire-Griquet in August?

In August, the water in St. Lunaire-Griquet averages 50.8 °F (1991–2020), the warmest of the year. For a long swim: 6/5 mm with hood, booties and gloves (very cold: full kit only).

When is the best time to swim in St. Lunaire-Griquet?

In St. Lunaire-Griquet the water is cold all year: it is warmest in August (50.8 °F on average). For a long swim, wear a wetsuit. The water is warmest in August (50.8 °F on average) and coldest in March (30.8 °F).

Is the water warmer or colder than normal?

The water off St. Lunaire-Griquet is about normal for late October today.

More about St. Lunaire-Griquet today

Water temperature near St. Lunaire-Griquet

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

Learn more

Sea surface temperature: Open-Meteo with Météo-France / Copernicus Marine, CC BY 4.0; grid point 11 mi away. Near the shore, in coves and estuaries, the water can be a little colder or warmer.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 8:35 pm (local time).

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